See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:49
Sunrise
17:48
Sunset
Moon
Waxing Gibbous
14:26
Moonrise
01:30
Moonset
Daily Forecast
Today
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Hanoi.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Hanoi.
View stargazing scoreWeather in Hanoi today, September 21, 2026
Hanoi starts September 21, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds.
Temperatures climb from an overnight low near 24°C toward a daytime high of about 32°C. The air stays humid, with relative humidity between 57% and 87% and the peak around 23:00. Winds stay light, near 2.0 km/h by 22:00, so the day feels still more than breezy.
Later hours favour clearer intervals, as cloud stays near 5% around 14:00. The afternoon is the better half for outdoor time. Visibility stays near 16.1 km. Sunrise is at 05:49 and sunset at 17:48, giving 11 hours 59 minutes of sunlight today.
The practical takeaway for Hanoi is a bright September 21, 2026, ideal for outdoor errands before temperatures ease from about 32°C.
Frequently asked questions about weather in Hanoi
How warm does it get in Hanoi?
The warmest month in Hanoi is June, with average high temperatures of 34°C. The average temperature during this period is around 30°C.
How cold does it get in Hanoi?
The coldest month in Hanoi is January, with average low temperatures of 15°C. The average temperature during this period is around 18°C.
What is the wettest time of year in Hanoi?
The wettest month in Hanoi is August, with an average of 361mm of precipitation.
What is the driest time of year in Hanoi?
The driest month in Hanoi is December, with an average of 31mm of precipitation.
Explore more weather forecasts
- Hoàn Kiếm, Hanoi
- Ho Chi Minh City, Ho Chi Minh City
- Ô Chợ Dừa, Hanoi
- Da Nang, Thành Phố Đà Nẵng
- Láng Thượng, Hanoi
- Haiphong, Thành Phố Hải Phòng
- Hà Đông, Hanoi
- Biên Hòa, Tỉnh Đồng Nai
- Cổ Lóa, Hanoi
- Cần Thơ, Thành Phố Cần Thơ
- Quang Minh, Hanoi
- Thuận An, Tỉnh Bình Dương
- Xuân Mai, Hanoi
- Thủ Đức, Ho Chi Minh City
- Sơn Tây, Hanoi
- Dĩ An, Tỉnh Bình Dương
