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Congo-Brazzaville weather in September 2025
Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Congo-Brazzaville in September. Check more long-term weather averages for Congo-Brazzaville in September before you book your next holiday to Congo-Brazzaville in 2025/2026.
- 3030°C max day temperature
- 6 hours of sunshine per day
- 44 days with some rainfall
- 2121°C min night temperature
- 1212 hours of daylight per day
- HHigh heat & humidity
- 3434 mm of monthly rainfall
- 1111+ (Extreme) UV index
More about Congo-Brazzaville
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The September weather guide for Congo-Brazzaville (Brazzaville) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Congo-Brazzaville destinations
Below are average maximum temperatures at popular countries, regions and places in Congo-Brazzaville in September. Select a holiday destination to see more weather parameters.
All Congo-Brazzaville destinations
Metric (°C / mm) | Imperial (°F / inches)
How hot is it in Congo-Brazzaville in September?
Daytime temperatures usually reach 30°C in Brazzaville, Congo-Brazzaville in September with high heat and humidity, falling to 21°C at night.
How sunny is it in Congo-Brazzaville in September?
There are normally 6 hours of bright sunshine each day in Brazzaville, Congo-Brazzaville in September - that's 46% of daylight hours.
Does it rain in Congo-Brazzaville in September?
There are usually 4 days with some rain in Brazzaville, Congo-Brazzaville in September and the average monthly rainfall is 34mm.
Congo-Brazzaville September sunrise & sunset times
Browse the sunrise and sunset times for Congo-Brazzaville in September 2025. Select a month to view Congo-Brazzaville sunrise and sunset times for the next 12 months. The Congo-Brazzaville sunrise and sunset times shown below are for Brazzaville.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:58 | 18:00 |
Monday, 15th September 2025 | 05:52 | 17:56 |
Tuesday, 30th September 2025 | 05:45 | 17:53 |
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