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
06:20
Sunrise
18:19
Sunset
Moon
Waxing Gibbous
15:13
Moonrise
01:45
Moonset
Daily Forecast
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Changsha.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Changsha.
View stargazing scoreWeather in Changsha today, September 21, 2026
Changsha stays under cloudy skies on September 21, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. Expect a brighter morning, with limited cloud around 38% by 11:00. Conditions start on a settled note.
Expect highs of 32°C and cooler readings close to 23°C. Relative humidity sits between 55% and 91%, reaching its peak around 05:00. Expect gentle winds, highest near 17:00 at 3.4 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 75% around 20:00. Outdoor plans may still want a flexible backup. Horizontal visibility holds close to 16.1 km. Expect sunrise at 06:20, sunset at 18:19, and 11 hours 59 minutes of sunlight today overall.
The practical takeaway for Changsha on September 21, 2026 is a cloudy day that stays usable, just not particularly bright, around 32°C.
Frequently asked questions about weather in Changsha
How warm does it get in Changsha?
The warmest month in Changsha is August, with average high temperatures of 35°C. The average temperature during this period is around 30°C.
How cold does it get in Changsha?
The coldest month in Changsha is January, with average low temperatures of 4°C. The average temperature during this period is around 7°C.
What is the wettest time of year in Changsha?
The wettest month in Changsha is June, with an average of 301mm of precipitation.
What is the driest time of year in Changsha?
The driest month in Changsha is December, with an average of 40mm of precipitation.
Explore more weather forecasts
- Xiangtan, Hunan Sheng
- Shanghai, Shanghai Shi
- Yutan, Hunan Sheng
- Beijing, Beijing Shi
- Zhuzhou, Hunan Sheng
- Shenzhen, Guangdong Sheng
- Wenxing, Hunan Sheng
- Guangzhou, Guangdong Sheng
- Shaoshan, Hunan Sheng
- Chengdu, Sichuan Sheng
- Guankou, Hunan Sheng
- Tianjin, Tianjin Shi
- Xiangxiang, Hunan Sheng
- Wuhan, Hubei Sheng
- Heshan, Hunan Sheng
- Dongguan, Guangdong Sheng