Cotonou weather in January
January in Cotonou: sweltering, dry, with poor air quality — one of the best months to visit.
#2 of 12 months in Cotonou · #303 of 604 destinations to visit in January · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Cotonou climate normals — January
| Daytime high | 30°C / 86°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 23 mm / 0.9 in | ☀️ dry |
| Rainy days | 7 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 11.8 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 113 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cotonou in January — FAQ
- Is January a good time to visit Cotonou?
- January in Cotonou: sweltering, dry, with poor air quality — one of the best months to visit. It ranks #2 of 12 months for Cotonou on SeasonMap's comfort score (68/100).
- What is the weather like in Cotonou in January?
- In January, Cotonou averages a daily high of 30°C and a low of 25.7°C, with about 22.6 mm of rain over roughly 7.4 rainy days.
- What is the air quality in Cotonou in January?
- Cotonou has a mean US Air Quality Index of about 113 in January.