Libreville weather in September
September in Libreville: hot, soaked, with clean air — a good time to visit.
#4 of 12 months in Libreville · #493 of 604 destinations to visit in September · comfort 63/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Libreville climate normals — September
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Feels like (high) | 32°C / 90°F | |
| Rainfall | 205 mm / 8.1 in | ⛈ soaked |
| Rainy days | 22 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 12.1 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Libreville?
Loading map…
Libreville in September — FAQ
- Is September a good time to visit Libreville?
- September in Libreville: hot, soaked, with clean air — a good time to visit. It ranks #4 of 12 months for Libreville on SeasonMap's comfort score (63/100).
- What is the weather like in Libreville in September?
- In September, Libreville averages a daily high of 28°C and a low of 23.8°C, with about 205.2 mm of rain over roughly 21.8 rainy days.
- What is the air quality in Libreville in September?
- Libreville has a mean US Air Quality Index of about 37 in September.