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What is the weather in Koh Tao in Thailand?
Koh Tao is a small island located in the Gulf of Thailand, known for its beautiful beaches, crystal clear waters, and vibrant marine life. The weather in Koh Tao can be divided into two main seasons: the dry season and the rainy season. Koh Tao is a small island, close to another island of Koh Phangan and popular Koh Samui. Aside from the weather, it’s also important to consider the water temperature if you’re planning to participate in water activities. The water temperature in Koh Tao ranges from 26°C to 30°C, making it comfortable to swim, snorkel, or dive year-round.
☀️ The dry season in Koh Tao lasts from December to April and is characterized by sunny skies, warm temperatures, and low humidity. This is the peak tourist season, and visitors can expect a lot of sunshine and little rain. The average temperature during this time ranges from 28°C to 32°C, making it the perfect time to enjoy outdoor activities like swimming, snorkeling, and diving.
⛈️ The rainy season Koh Tao runs from May to November and is characterized by heavy rainfall and occasional thunderstorms. Although it can rain at any time during the day, the heaviest rain usually falls in the late afternoon or evening. Despite the rain, the temperature remains warm, with an average temperature of 28°C. It’s important to note that some businesses on the island may close during this season, as the weather can be unpredictable and ferry services may be affected. It is a good to know about this season and prepare for everything.
What is the best time to visit Koh Tao?
The best time to visit Koh Tao depends on your preferences and what activities you want to do. The dry season, which runs from December to April, is generally considered the best time to visit Koh Tao in Thailand. During this period, the weather is sunny, warm, and dry, making it perfect for outdoor activities like swimming, snorkeling, and diving. The sea is also usually calm during this time, making it easier to get out to some of the more remote dive sites. However, keep in mind that the dry season is also the busiest time on the island, and prices for accommodations and activities may be higher. Additionally, if you’re planning to visit during the peak season (December to January), you should book your accommodations and activities well in advance, as they can fill up quickly.
If you prefer to avoid the crowds and don’t mind some rain, you can consider visiting during the shoulder season, which runs from May to July and September to November. During this time, the weather is still warm, but there may be occasional rain showers. Prices for accommodations and activities may also be lower during this period.
The rainy season, which runs from August to October, can be unpredictable, with heavy rainfall and occasional thunderstorms. Some businesses may also close during this time. However, if you don’t mind the rain and are looking for a more peaceful and quiet vacation, this may be the best time for you to visit Koh Tao. Just be sure to check weather forecasts and ferry schedules before you go. What is the current weather in Koh Tao? ➜ Current weather in Koh Tao.
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Weather in Koh Tao throughout the year:
| Month | Weather Description |
|---|---|
| January in Koh Tao | In January, Koh Tao experiences some of the best weather conditions of the year, with plenty of sunshine and low humidity levels. The average temperature during the day is around 28°C, which is perfect for outdoor activities such as sunbathing, swimming, snorkeling, and diving. The sea is usually calm, with good visibility, making it an excellent time for water-based activities. In the evenings, the temperature can drop to around 22°C, so it’s a good idea to bring some warmer clothes for nighttime. The dry weather conditions also make it an ideal time for hiking and exploring the island’s beautiful landscapes. As mentioned earlier, January is the peak season in Koh Tao, which means that the island can get crowded with tourists. Accommodations and activities tend to be more expensive during this time, and it’s advisable to book in advance to ensure availability. |
| February in Koh Tao | February is one of the best months to visit Koh Tao, with warm and sunny weather conditions. The temperature averages around 28°C, making it perfect for outdoor activities like hiking, snorkeling, and diving. The sea is calm, making it ideal for water-based activities, and the visibility for diving is usually excellent. Visitors can expect plenty of sunshine and low humidity levels during this time. Accommodations and activities tend to be more expensive during this time, and it’s advisable to book in advance to ensure availability. Overall, February offers some of the best weather conditions in Koh Tao for outdoor activities and enjoying the island’s natural beauty. |
| March in Koh Tao | March is the end of the high season in Koh Tao, and the weather remains sunny, warm, and dry. The temperature starts to rise, with an average of 29°C, but the sea remains calm, making it an excellent time for water-based activities. Visitors can still expect plenty of sunshine and low humidity levels. Prices for accommodations and activities may start to drop towards the end of the month. |
| April in Koh Tao | In April, the weather in Koh Tao starts to get hotter, with an average temperature of around 30°C. The sea is still calm, but there may be occasional thunderstorms as the island transitions into the rainy season. Visitors can still enjoy plenty of sunshine and low humidity levels during the early part of the month. Prices for accommodations and activities may start to drop further towards the end of the month. |
| May in Koh Tao | May marks the start of the rainy season in Koh Tao, and visitors can expect more rainfall and occasional thunderstorms. The temperature remains warm, with an average of 30°C, but humidity levels start to rise. The sea can get rough, so water-based activities may be limited. However, visitors can still enjoy the island’s natural beauty and explore the less-crowded beaches. Prices for accommodations and activities may be lower during this time. |
| June in Koh Tao | June marks the beginning of the rainy season in Koh Tao, with increased rainfall and occasional thunderstorms. The temperature remains warm, with an average of around 29°C, but humidity levels start to rise. The sea can get rough, so water-based activities may be limited. Visitors can still enjoy exploring the island’s natural beauty, but it’s important to check the weather forecasts before planning any outdoor activities. Overall, June is not the best month to visit Koh Tao for those who want to spend a lot of time in the water, but it can still be a good time for those who are interested in exploring the island’s interior or want to take advantage of lower prices. |
| July in Koh Tao | In July, the rainy season in Koh Tao continues, with increased rainfall and occasional thunderstorms. The temperature remains warm, with an average of around 29°C, but humidity levels are high. The sea can be rough, making it challenging to participate in water-based activities. Visitors can still enjoy the island’s natural beauty, but it’s important to plan activities around the weather. |
| August in Koh Tao | August is still in the rainy season in Koh Tao, with occasional rain showers and thunderstorms. The temperature averages around 29°C, and humidity levels are high. The sea can get rough, so water-based activities may be limited. Visitors can still enjoy exploring the island’s natural beauty, but it’s important to check the weather forecasts before planning any outdoor activities. August can be a good time to visit Koh Tao for those who are interested in taking advantage of lower prices for accommodations and activities. However, it’s important to keep in mind that the weather can be unpredictable during this time. |
| September in Koh Tao | In September, the rainy season in Koh Tao starts to wind down, with fewer rain showers and lower humidity levels. The temperature remains warm, with an average of around 29°C. The sea can still be rough, but water-based activities start to become more feasible towards the end of the month. Visitors can enjoy exploring the island’s natural beauty and participating in outdoor activities, but it’s important to check the weather forecasts as some rain showers may still occur. |
| October in Koh Tao | In October, the rainy season in Koh Tao starts to come to an end, with decreasing rainfall and lower humidity levels. The temperature remains warm, with an average of around 28°C. The sea can still be rough at the beginning of the month, but it starts to calm down towards the end of the month. Visitors can enjoy exploring the island’s natural beauty and participating in outdoor activities, but it’s important to check the weather forecasts as some rain showers may still occur. |
| November in Koh Tao | November marks the beginning of the high season in Koh Tao, with dry and sunny weather conditions. The temperature remains warm, with an average of around 28°C, making it perfect for outdoor activities. The sea is calm, making it ideal for water-based activities like swimming, snorkeling, and diving. Visitors can expect plenty of sunshine and low humidity levels during this time. Accommodations and activities tend to be more expensive during this time, and it’s advisable to book in advance to ensure availability. |
| December in Koh Tao | In December, the weather in Koh Tao remains dry and sunny, with warm temperatures around 28°C. The sea is still calm, making it ideal for water-based activities. Visitors can enjoy exploring the island’s natural beauty and participating in outdoor activities. However, December is a popular time on the island, and prices for accommodations and activities tend to be high. It’s advisable to book in advance to ensure availability. |
The Current weather in Koh Tao – Thailand:
Max, Min and Average Temperature in Koh Tao:
Koh Tao has a tropical climate with high temperatures and humidity throughout the year. The average temperature in Koh Tao ranges from around 27°C to 29°C, depending on the time of year. The warmest months in Koh Tao are typically April and May, when the maximum temperature can reach up to 33°C. The coolest months are usually December and January, when the minimum temperature can dip down to around 23°C.
| Month | Max Temp (°C) | Min Temp (°C) | Average Temp (°C) |
|---|---|---|---|
| January | 30 | 23 | 27 |
| February | 31 | 24 | 27 |
| March | 32 | 25 | 28 |
| April | 33 | 26 | 29 |
| May | 33 | 26 | 29 |
| June | 32 | 25 | 28 |
| July | 32 | 25 | 28 |
| August | 31 | 24 | 27 |
| September | 31 | 24 | 27 |
| October | 30 | 23 | 27 |
| November | 30 | 23 | 27 |
| December | 30 | 23 | 27 |
Rainfall and Rainy Days in Koh Tao:
During the dry season, Koh Tao receives very little rainfall, with an average of only 30-60mm of rainfall per month. This makes it a popular time for visitors to enjoy the island’s beautiful beaches and water activities. On the other hand, during the rainy season, Koh Tao can receive significant amounts of rainfall. The months with the highest rainfall are typically October and November, with an average of around 200-300mm of rainfall each month. During the rainy season, it’s not uncommon to experience short, intense bursts of rainfall followed by periods of sunshine. In terms of rainy days, Koh Tao experiences an average of around 10-15 rainy days per month during the rainy season, compared to only a handful of rainy days per month during the dry season.
| Month | Aver. Monthly Rainfall (mm) | Aver. Rainy Days |
|---|---|---|
| January | 20 | 4 |
| February | 20 | 4 |
| March | 40 | 7 |
| April | 60 | 10 |
| May | 170 | 17 |
| June | 120 | 16 |
| July | 90 | 14 |
| August | 90 | 15 |
| September | 150 | 17 |
| October | 260 | 21 |
| November | 290 | 21 |
| December | 120 | 12 |
Max and Average Wind Speed and Wind Gust in Koh Tao:
Koh Tao experiences moderate to strong winds throughout the year, with the highest wind speeds occurring between November and March. The maximum wind speeds during these months can reach up to 25 knots (46 km/h). During the rest of the year, maximum wind speeds are typically around 20 knots (37 km/h). The average wind speed in Koh Tao is around 10 knots (18 km/h) throughout the year. However, it can be higher or lower depending on the season. During the months of January to March, the average wind speed is around 12 knots (22 km/h), while in the months of June to September, it drops to around 8 knots (15 km/h). Wind gusts can also be significant in Koh Tao, particularly during the monsoon season. Gusts can reach up to 35 knots (65 km/h) during this time.
| Month | Max Wind Speed (mph) | Average Wind Speed (mph) | Max Wind Gust (mph) |
|---|---|---|---|
| January | 31 | 20 | 52 |
| February | 33 | 20 | 56 |
| March | 33 | 22 | 59 |
| April | 33 | 17 | 46 |
| May | 31 | 15 | 43 |
| June | 28 | 15 | 43 |
| July | 30 | 15 | 43 |
| August | 28 | 15 | 43 |
| September | 28 | 15 | 46 |
| October | 31 | 17 | 46 |
| November | 35 | 20 | 52 |
| December | 33 | 20 | 56 |
Cloud and Humidity in Koh Tao:
The island also experiences a high level of humidity, with an average humidity level of around 70-80%. In terms of clouds, the island can experience a mix of sunny and cloudy days throughout the year. During the rainy season, the island can experience cloudy and overcast days, while the dry season is generally sunny and clear. However, it’s important to note that Koh Tao is located in the tropics and is subject to rapid changes in weather, including sudden thunderstorms and heavy rainfalls. It’s always a good idea to check the weather forecast and be prepared for sudden changes in weather while visiting the island.
| Month | Average Humidity Levels (%) |
|---|---|
| January | 70% |
| February | 70% |
| March | 70% |
| April | 75% |
| May | 80% |
| June | 80% |
| July | 80% |
| August | 80% |
| September | 80% |
| October | 75% |
| November | 70% |
| December | 70% |
Sun Hours and Sun Days in Koh Tao:
The island enjoys a tropical climate, which means that it is generally hot and sunny throughout the year. In terms of sun hours and sun days, Koh Tao experiences an average of around 8 hours of sunshine per day, with the highest number of sun hours occurring during the dry season (December to March). During the rainy season (May to October), the island can experience more cloudy and overcast days, but there are still plenty of sunny days to enjoy. It’s worth noting that Koh Tao is located near the equator, so the length of daylight hours doesn’t vary much throughout the year. Visitors to the island can expect to enjoy a good amount of sunshine no matter what time of year they visit.
| Month | Aver. Sun Hours per Day | Aver. Sunny Days per Month |
|---|---|---|
| January | 7 | 25 |
| February | 8 | 26 |
| March | 8 | 26 |
| April | 7 | 23 |
| May | 6 | 18 |
| June | 5 | 12 |
| July | 5 | 11 |
| August | 5 | 11 |
| September | 5 | 12 |
| October | 6 | 16 |
| November | 6 | 20 |
| December | 7 | 24 |
What is the sea temperature in Koh Tao:
The sea temperature in Koh Tao is warm and inviting year-round, making it a great destination for water activities such as swimming, snorkeling, and scuba diving. From January to March, the sea temperature in Koh Tao ranges from 27-29°C (81-84°F), providing a comfortable and refreshing environment for water-based activities. As the weather begins to warm up, from April to June, the sea temperature increases to 29-31°C (84-88°F), making it the perfect time to explore the island’s underwater world. During the months of July to September, the sea temperature in Koh Tao remains warm at around 29-30°C (84-86°F), offering an excellent opportunity to experience the island’s natural beauty.
| Month | Aver. Sea Temp. (°C) | Aver. Sea Temp. (°F) |
|---|---|---|
| January | 27-29 | 81-84 |
| February | 27-29 | 81-84 |
| March | 27-29 | 81-84 |
| April | 29-31 | 84-88 |
| May | 29-31 | 84-88 |
| June | 29-31 | 84-88 |
| July | 29-30 | 84-86 |
| August | 29-30 | 84-86 |
| September | 29-30 | 84-86 |
| October | 28-29 | 82-84 |
| November | 28-29 | 82-84 |
| December | 28-29 | 82-84 |
Visibility in Koh Tao:
The visibility in Koh Tao is generally good throughout the year, although it can be affected by seasonal changes and weather conditions. During the months of March to May and September to November, the water is typically clearest, with visibility often reaching up to 30 meters (100 feet) or more. During these months, divers and snorkelers can enjoy a breathtaking view of the island’s underwater world, with a wide variety of colorful coral and marine life. In the months of December to February and June to August, visibility can be slightly reduced due to the stronger winds and currents, which can stir up sediment in the water. However, even during these months, visibility is usually still good enough for divers and snorkelers to enjoy the island’s underwater scenery.
| Month | Visibility (meters) | Visibility (feet) |
|---|---|---|
| January | 15-25 | 50-80 |
| February | 15-25 | 50-80 |
| March | 20-30 | 65-100 |
| April | 25-30 | 80-100 |
| May | 25-30 | 80-100 |
| June | 15-25 | 50-80 |
| July | 15-25 | 50-80 |
| August | 15-25 | 50-80 |
| September | 20-30 | 65-100 |
| October | 20-25 | 65-80 |
| November | 20-30 | 65-100 |
| December | 15-25 | 50-80 |
❓ Frequently Asked Questions – Weather in Koh Tao:
1. What is the best time to visit Koh Tao?
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- The best time to visit Koh Tao is from March to May and from September to November, as these months offer the most pleasant weather conditions. During this time, you can expect sunny skies, low humidity, and comfortable temperatures.
2. What is the average temperature in Koh Tao throughout the year?
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- The average temperature in Koh Tao throughout the year is around 28-30°C (82-86°F), with slightly cooler temperatures in the winter months (December to February) and slightly warmer temperatures in the summer months (June to August).
3. Does Koh Tao experience monsoon season?
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- Yes, Koh Tao experiences monsoon season from late October to early December and from late April to early June. During this time, the island experiences heavy rainfall and strong winds, which can make the sea rough and limit visibility for diving and snorkeling.
4. What is the average rainfall in Koh Tao throughout the year?
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- The average rainfall in Koh Tao throughout the year is around 2,200mm, with the wettest months being September and October. During these months, the island can experience heavy rainfall and occasional flooding, which can make outdoor activities more challenging. However, even during the rainy season, visitors can still enjoy sunny periods between rain showers and take advantage of fewer crowds and lower prices.
5. Is it possible to visit Koh Tao during monsoon season?
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- While it is possible to visit Koh Tao during monsoon season, it may not be the best time for outdoor activities like diving and snorkeling. Visitors should be prepared for heavy rain and rough seas during this time.
6. Does Koh Tao experience typhoons or hurricanes?
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- Koh Tao is not typically affected by typhoons or hurricanes, as it is located outside of the main typhoon and hurricane zones in Southeast Asia.
7. What is the humidity like in Koh Tao?
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- The humidity in Koh Tao can be quite high, especially during the summer months (June to August) and the rainy season (September to December). Humidity levels can reach up to 80-90% during these times.
8. What is the wind like in Koh Tao?
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- The wind in Koh Tao can vary depending on the time of year, but generally, the island experiences moderate to strong winds throughout the year. During the monsoon season, winds can be particularly strong, which can make the sea rough and limit visibility for diving and snorkeling.
9. What is the water temperature in Koh Tao throughout the year?
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- The water temperature in Koh Tao typically ranges from 26-30°C (79-86°F) throughout the year, with the warmest water temperatures occurring in the summer months (June to August) and the coolest water temperatures occurring in the winter months (December to February).
10. Does Koh Tao experience sea level rise or flooding?
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- While Koh Tao has not experienced significant sea level rise or flooding in the past, it is possible for these events to occur in the future due to climate change. Rising sea levels and more intense storms due to climate change could lead to increased flooding and erosion on the island’s beaches and coastal areas.
11. Is it safe to visit Koh Tao during thunderstorms?
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- It is generally safe to visit Koh Tao during thunderstorms, but visitors should avoid open areas and seek shelter if lightning is present. Divers and snorkelers should also be aware of the risks of diving during thunderstorms, as lightning strikes can occur in the water.
12. What should I pack for a trip to Koh Tao in terms of clothing?
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- Visitors to Koh Tao should pack light, breathable clothing that is suitable for hot and humid weather. It is also recommended to bring waterproof clothing and footwear in case of rain.
13. Are there any weather-related activities to do in Koh Tao?
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- While diving and snorkeling are popular activities in Koh Tao, visitors can also enjoy other weather-related activities such as hiking, kayaking, and exploring the island’s waterfalls and beaches.
14. Where you can travel from Koh Tao?
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- From Koh Tao you can travel by boat to Chumphon or you can also visit another popular islands in the Gulf of Thailand – Koh Phangan or nearby Koh Samui – the most visited island in this part of Thailand.
15. How to travel solo in Thailand?
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- Embark on a solo adventure in Thailand by researching destinations, ensuring personal safety, trying local experiences, connecting with fellow travelers, and savoring the diverse landscapes and attractions the country has to offer. Traveling on your own in Thailand is very popular by travelers. Read this article: Solo Travel in Thailand.
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