September · Congo
Best time to visit Brazzaville in September Weather, crowds & prices
Weather in Brazzaville in September
Average temperature 26°C, 43 mm of rain, about 27 days with 6+ hours of sunshine and 70% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.6/10
Ranked #4 of 12 months
- Avg temp
- 26°C
- Rainfall
- 43 mm
- Humidity
- 70%
- Days with 6h+ sun
- 27
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Brazzaville scores 7.6/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 26°C, 43 mm of rain, and roughly 27 days with 6+ hours of sunshine this month.
Brazzaville is the Republic of the Congo's riverfront capital, with markets, Poto-Poto arts, colonial traces, and views across the Congo River.
September in Brazzaville — reliably good (4th best month)
September averages 26°C (80°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 43 mm of rain — occasional showers rather than washed-out days — alongside about 27 days with 6+ hours of sunshine and 12.1 daylight hours.
It scores 7.6/10 here, 4th of 12 months, against 8.6/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Brazzaville in September?
- In September, Brazzaville averages 26°C, 43 mm of rain, and about 27 days with 6+ hours of sunshine. Its climate-comfort score is 7.6/10.
- Is September a good time to visit Brazzaville?
- September earns a 7.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Brazzaville in September?
- Expect about 43 mm of rain in September. Average humidity is 70% and there are about 27 days with 6+ hours of sunshine.
Curated in Brazzaville
Tickets & experiences
Things to do in Brazzaville
Brazzaville, Congo. Live activities and tours from GetYourGuide, matched to this destination.