☀️ Weather in Hanoi
👍 The Best Time to Visit
🔎 Weather in Months
❓ Questions + Answers
🎫 Excursion + Tickets
🎫 Book Tickets Online
Quick answer: Hanoi has four distinct seasons. The most pleasant weather is usually from September to November and March to April, when temperatures are mild and rainfall is lower.
- 🌤️ Best months: March-April, September-November
- 🌡️ Average temperatures: 15-35°C throughout the year
- 🌧️ Rainy season: May-September
- 🎯 Best for: City sightseeing, walking tours and cultural attractions
What is the weather in Hanoi in northern Vietnam?
Hanoi has a humid subtropical climate with four distinct seasons. Summers are hot, humid and rainy, while winters are cooler and much drier. Spring and autumn are generally considered the most pleasant seasons for visiting the city.
The hottest months are from June to August, when temperatures often reach 30-35°C and heavy rain showers or thunderstorms are common. The coolest period is from December to February, when temperatures can occasionally drop below 10°C in the early morning.
☀️ Dry Season in Hanoi
The dry season usually lasts from October to April and offers cooler temperatures, lower humidity and more sunshine.
- Best period for sightseeing
- Temperatures around 15-28°C
- Lower rainfall and humidity
- Comfortable for walking and city tours
⛈️ Rainy Season in Hanoi
The rainy season runs from May to September, with the heaviest rainfall usually in July and August.
- Hot and humid weather
- Temperatures often 28-35°C
- Frequent showers and thunderstorms
- Occasional flooding after heavy rain
🌿 Best Time to Visit Hanoi
The best months to visit Hanoi are typically September to November and March to April. During these periods, temperatures are pleasant, rainfall is lower and conditions are ideal for exploring the Old Quarter, temples, lakes and other attractions around the city.
What is the best time to visit Hanoi?
The best time to visit Hanoi is during autumn (September-November) and spring (March-April). These months offer pleasant temperatures, lower humidity and ideal conditions for sightseeing, walking tours and exploring the city’s historic attractions.
✅ Best Time to Visit
September to November is generally considered the best period to visit Hanoi.
- Comfortable temperatures
- Lower humidity
- Less rainfall
- Great for sightseeing and photography
⚠️ Less Ideal Period
June to August is the hottest and wettest time of the year.
- High humidity
- Frequent heavy rain
- Occasional thunderstorms
- Very warm daytime temperatures
Spring (March-April) is also an excellent time to visit, with mild weather, blooming flowers and comfortable conditions for outdoor activities throughout the city.
Weather in Hanoi throughout the year:
| Month | Weather Description |
|---|---|
| January in Hanoi | January is cool and dry, with temperatures around 14-18°C. Rainfall is low and conditions are ideal for sightseeing, walking tours and exploring Hanoi’s historic attractions. |
| February in Hanoi | February remains mild and relatively dry, with temperatures of 16-20°C. Comfortable weather and lower humidity make it a good month for visiting parks, temples and cultural sites. |
| March in Hanoi | March brings pleasant spring weather with temperatures around 19-25°C. Rainfall is usually limited and outdoor conditions are excellent for sightseeing and food tours. |
| April in Hanoi | April is warm and comfortable, with temperatures ranging from 21-27°C. It is one of the best months to visit Hanoi before the hottest part of the year begins. |
| May in Hanoi | May marks the start of summer, with temperatures often reaching 30°C or higher. Humidity increases and occasional rain showers become more frequent. |
| June in Hanoi | June is hot, humid and rainy. Temperatures average 25-31°C and afternoon showers or thunderstorms are common during the start of the wet season. |
| July in Hanoi | July is one of the hottest and wettest months, with temperatures around 26-33°C. Expect high humidity, heavy rainfall and occasional thunderstorms. |
| August in Hanoi | August remains hot and rainy, with temperatures around 25-31°C. Frequent showers occur, but sunny periods are still common between rainstorms. |
| September in Hanoi | September brings slightly cooler weather and less rainfall. Temperatures average 23-29°C, making it a pleasant month for exploring the city. |
| October in Hanoi | October is one of the best months to visit Hanoi, with temperatures around 20-26°C, lower humidity and mostly dry weather. |
| November in Hanoi | November offers comfortable temperatures of 16-22°C and generally dry conditions. It is an excellent time for sightseeing and outdoor activities. |
| December in Hanoi | December is cool and relatively dry, with temperatures around 13-19°C. The weather is comfortable for walking, sightseeing and enjoying Hanoi’s cultural attractions. |
Max, Min and Average Temperature in Hanoi:
Hanoi experiences a humid subtropical climate with four seasons. The maximum temperature ranges from 28°C to 36°C during the summer and from 17°C to 22°C during the winter. The minimum temperature ranges from 15°C to 26°C during the summer and from 9°C to 14°C during the winter. The average temperature is around 23°C. Hanoi has a relatively mild climate with no extreme temperatures throughout the year, but visitors should be prepared for occasional heavy rainfall during the monsoon season.
| Month | Max Temp (°C) | Min Temp (°C) | Aver. Temp (°C) |
|---|---|---|---|
| January | 20 | 14 | 17 |
| February | 22 | 14 | 18 |
| March | 26 | 16 | 21 |
| April | 31 | 20 | 25 |
| May | 34 | 23 | 28 |
| June | 34 | 26 | 30 |
| July | 33 | 26 | 29 |
| August | 32 | 25 | 28 |
| Sep | 31 | 24 | 27 |
| Oct | 29 | 22 | 25 |
| Nov | 26 | 18 | 22 |
| Dec | 22 | 14 | 18 |
Rainfall and Rainy Days in Hanoi:
Hanoi experiences a humid subtropical climate with distinct wet and dry seasons. The rainy season typically lasts from May to September, with the heaviest rainfall occurring in August. During this time, the city receives an average of 160-320mm of rainfall per month, with rain falling on about half of the days each month. The dry season, from November to March, is characterized by lower humidity and less rainfall. Visitors to Hanoi during the rainy season should be prepared for occasional heavy rain and potential flooding.
| Month | Rainfall (mm) | Rainy Days |
|---|---|---|
| January | 18 | 6 |
| February | 28 | 8 |
| March | 43 | 12 |
| April | 130 | 12 |
| May | 195 | 14 |
| June | 235 | 14 |
| July | 295 | 15 |
| August | 320 | 14 |
| September | 245 | 12 |
| October | 95 | 9 |
| November | 35 | 5 |
| December | 20 | 5 |
Max and Average Wind Speed and Wind Gust in Hanoi:
Hanoi experiences moderate to strong winds throughout the year, with the strongest winds occurring during the winter months of November to February. The average wind speed in Hanoi is around 2.5 to 3.5 meters per second, with occasional gusts up to 6-7 meters per second. The maximum wind gust recorded in Hanoi is about 40 meters per second, which occurred during a typhoon in 1971. Visitors to Hanoi should be prepared for occasional windy conditions, especially during the winter months.
| Month | Average Wind Speed (m/s) | Max Wind Gust (m/s) |
|---|---|---|
| January | 2.8 | 11.6 |
| February | 2.9 | 12.6 |
| March | 2.8 | 11.6 |
| April | 2.7 | 10.9 |
| May | 2.8 | 11.9 |
| June | 2.7 | 11.4 |
| July | 2.7 | 11.3 |
| August | 2.7 | 11.1 |
| September | 2.7 | 11.3 |
| October | 2.6 | 11.1 |
| November | 2.6 | 10.9 |
| December | 2.6 | 11.1 |
Cloud and Humidity in Hanoi:
Hanoi experiences a humid subtropical climate, which means that the city is generally humid throughout the year. The average relative humidity in Hanoi is around 80%, with occasional fluctuations due to seasonal changes. The city also experiences a significant amount of cloud cover throughout the year, with the cloudiest months being from May to September. During these months, Hanoi receives a lot of rainfall and humidity levels can be quite high. Visitors to Hanoi should be prepared for humid conditions and the possibility of occasional rainfall throughout the year.
| Month | Cloud Cover (%) | Average Relative Humidity (%) |
|---|---|---|
| January | 30 | 75 |
| February | 36 | 80 |
| March | 44 | 82 |
| April | 47 | 80 |
| May | 51 | 79 |
| June | 60 | 80 |
| July | 61 | 78 |
| August | 60 | 78 |
| September | 56 | 76 |
| October | 48 | 75 |
| November | 38 | 74 |
| December | 29 | 72 |
Sun Hours and Sun Days in Hanoi:
Hanoi has a distinct wet and dry season, with the dry season typically lasting from October to April and the wet season from May to September. During the dry season, the city experiences a significant amount of sunshine, with clear blue skies and low levels of cloud cover. The average number of sun hours per day during this season is around 7-8 hours. However, during the wet season, the city receives a lot of rainfall, which can reduce the number of sun hours per day to around 3-4 hours. Visitors to Hanoi during the dry season can expect plenty of sun and warm temperatures, while those visiting during the wet season should be prepared for occasional rain and lower levels of sun.
| Month | Average Sun Hours per Day | Average Sun Days per Month |
|---|---|---|
| January | 3 | 20 |
| February | 3 | 20 |
| March | 5 | 22 |
| April | 6 | 25 |
| May | 6 | 26 |
| June | 6 | 25 |
| July | 6 | 24 |
| August | 6 | 24 |
| September | 5 | 23 |
| October | 5 | 24 |
| November | 4 | 22 |
| December | 3 | 19 |
Visibility in Hanoi:
Visibility refers to the distance at which objects can be clearly seen in the atmosphere. In Hanoi, visibility can be affected by various weather conditions such as fog, haze, and air pollution. During the winter months, Hanoi can experience heavy fog, which can significantly reduce visibility and make driving and other outdoor activities more difficult. Air pollution is also a problem in the city, particularly during the dry season when there is less rainfall to wash away pollutants. This can reduce visibility and also have negative health effects on residents and visitors. It is important to check the visibility conditions before heading out, especially during the winter months when fog is common.
| Month | Visibility (km) |
|---|---|
| January | 7.9 |
| February | 8.1 |
| March | 8.7 |
| April | 8.2 |
| May | 7.4 |
| June | 6.9 |
| July | 6.6 |
| August | 6.5 |
| September | 6.5 |
| October | 6.8 |
| November | 7.3 |
| December | 7.8 |
❓ Frequently Asked Questions – Weather in Hanoi:
What is the climate like in Hanoi?
Hanoi has a humid subtropical climate with four seasons. Summers are hot and rainy, while winters are cooler and drier.
What is the best time to visit Hanoi?
The best time to visit Hanoi is from September to November and from March to April, when the weather is most pleasant.
What is the temperature range in Hanoi?
Temperatures range from about 10-15°C in winter to 30-35°C during the summer months.
Does Hanoi experience typhoons?
Yes, typhoons can affect northern Vietnam, mainly from July to November, bringing heavy rain and strong winds.
Does it snow in Hanoi?
No, it does not snow in Hanoi. Winter can be cool, but temperatures stay above freezing.
What is the rainy season in Hanoi?
The rainy season runs from May to September, with the heaviest rainfall usually in July and August.
Does Hanoi have a dry season?
Yes, the dry season lasts from October to April and offers cooler weather for sightseeing.
Is it humid in Hanoi?
Yes, Hanoi is humid throughout the year, especially during the summer rainy season.
What should I wear when visiting Hanoi?
Wear light clothing in summer and bring rain protection. In winter, pack a light jacket or sweater.
Is air pollution a concern in Hanoi?
Air quality can occasionally worsen, especially during the dry season and periods of heavy traffic.
What is the weather like in Hanoi during summer?
Summer is hot, humid and rainy, with temperatures often above 30°C and frequent thunderstorms.
What should I pack for a trip to Hanoi?
Pack breathable clothes, comfortable shoes and rain protection. Read: What to pack to Vietnam.
What is visibility like in Hanoi?
Visibility is generally good, but fog and air pollution may occasionally reduce it, especially in winter.
Where can you travel from Hanoi?
Popular routes include Sapa, Halong Bay and Ninh Binh.
How to travel solo in Vietnam?
Solo travel in Vietnam is easy thanks to affordable transport, accommodation and a well-developed tourist infrastructure.
