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
05:45
Sunrise
17:44
Sunset
Moon
Waxing Gibbous
14:01
Moonrise
01:45
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 Biên Hòa.
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Biên Hòa.
View stargazing scoreWeather in Biên Hòa today, September 21, 2026
Rain features in Biên Hòa on September 21, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise.
The temperature range runs from about 25°C up to 30°C. Expect humidity between 79% and 95%, most humid near 19:00. A lighter breeze peaks around 14:00 near 1.6 km/h.
The second half of the day still looks unsettled, with rain probability around 92% by 14:00. Dense cloud near 100% at 19:00 keeps the feel grey. Horizontal visibility sits around 11.6 km, briefly nearer 6.0 km. Expect sunrise at 05:45, sunset at 17:44, and 11 hours 59 minutes of sunlight today overall.
The practical takeaway for Biên Hòa on September 21, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 30°C.
Frequently asked questions about weather in Biên Hòa
How warm does it get in Biên Hòa?
The warmest month in Biên Hòa is April, with average high temperatures of 34°C. The average temperature during this period is around 30°C.
How cold does it get in Biên Hòa?
The coldest month in Biên Hòa is January, with average low temperatures of 24°C. The average temperature during this period is around 27°C.
What is the wettest time of year in Biên Hòa?
The wettest month in Biên Hòa is July, with an average of 311mm of precipitation.
What is the driest time of year in Biên Hòa?
The driest month in Biên Hòa is February, with an average of 11mm of precipitation.