See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
25°
Humid and Mostly Cloudy
Feels Like: 27°
Min: 24°
Max: 30°
The next few hours will be possible drizzle, with today reaching 30°C and dropping to 25°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:54
Sunrise
18:51
Sunset
Moon
Waxing Gibbous
18:09
Moonrise
05:40
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Bissau.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Bissau.
View stargazing scoreWeather in Bissau today, September 25, 2026
Rain features in Bissau on September 25, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Early hours look the most unsettled, with rain probability near 30% by 03:00. The thickest cloud arrives around 03:00, reaching about 83%.
The temperature range runs from about 24°C up to 30°C. The air stays humid, with relative humidity between 66% and 97% and the peak around 06:00. Airflow remains manageable, reaching about 6.2 km/h around 15:00.
Through the afternoon wet weather remains a factor, with rain chances near 40% around 13:00. Cloud also stays substantial, close to 54% near 12:00. Visibility stays near 16.1 km. The sun rises at 06:54 and sets at 18:51, for a total of 11 hours 56 minutes of sunlight today.
Overall, Bissau on September 25, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 40% and the high sits around 30°C.
Frequently asked questions about weather in Bissau
How warm does it get in Bissau?
The warmest month in Bissau is March, with average high temperatures of 36°C. The average temperature during this period is around 28°C.
How cold does it get in Bissau?
The coldest month in Bissau is January, with average low temperatures of 21°C. The average temperature during this period is around 27°C.
What is the wettest time of year in Bissau?
The wettest month in Bissau is August, with an average of 537mm of precipitation.
What is the driest time of year in Bissau?
The driest month in Bissau is March, with an average of 0mm of precipitation.
