Climate Insights for Hanoi

The climate in Hanoi is warm and mild. The average annual temperature is 25°C and approximately 1,886 mm of precipitation falls per year. Hanoi receives a notable amount of rainfall throughout the year, including during its driest month. Hanoi is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, July, August. The coldest months are January, December, February, when temperatures can drop to 15°C.The climate in Hanoi is warm and mild. The average annual temperature is 77°F and approximately 74.3 in of precipitation falls per year. Hanoi receives a notable amount of rainfall throughout the year, including during its driest month. Hanoi is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, July, August. The coldest months are January, December, February, when temperatures can drop to 59°F.

Hanoi sees moderate temperature variation throughout the year, ranging from 15°C to 34°C. The warmest month is June, when average highs reach 34°C and the mean temperature sits around 30°C. January is the coolest month, with minimum temperatures around 15°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between November and December, with a 4°C shift in average temperatures.Hanoi sees moderate temperature variation throughout the year, ranging from 59°F to 94°F. The warmest month is June, when average highs reach 94°F and the mean temperature sits around 87°F. January is the coolest month, with minimum temperatures around 59°F and an average of 64°F. Daily temperature variation is modest, with an average difference of 11°F between highs and lows. The sharpest temperature change occurs between November and December, with a 7°F shift in average temperatures.

Hanoi is a fairly wet location, receiving approximately 1,886 mm of precipitation annually, which averages out to around 157 mm per month. The wettest month is August, averaging 361 mm of rainfall. September and July also tend to see above-average precipitation. The driest month is December, with just 31 mm. That's 330 mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Hanoi is a fairly wet location, receiving approximately 74.3 in of precipitation annually, which averages out to around 6.2 in per month. The wettest month is August, averaging 14.2 in of rainfall. September and July also tend to see above-average precipitation. The driest month is December, with just 1.2 in. That's 13 in less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Hanoi is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.Hanoi is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is April, averaging 5mph, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

The best time to visit Hanoi is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 50 mm per month. By contrast, June can be uncomfortably hot with temperatures reaching 34°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Hanoi is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 68°F with modest rainfall averaging 2 in per month. By contrast, June can be uncomfortably hot with temperatures reaching 94°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Hanoi based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Hanoi based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.