Cotonou weather in December
December in Cotonou: sweltering, dry, with poor air quality — a good time to visit.
#3 of 12 months in Cotonou · #322 of 604 destinations to visit in December · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Cotonou climate normals — December
| Daytime high | 30°C / 86°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 27 mm / 1.1 in | ☀️ dry |
| Rainy days | 9 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 10.5 h/day | |
| Daylight | 11.8 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 119 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cotonou in December — FAQ
- Is December a good time to visit Cotonou?
- December in Cotonou: sweltering, dry, with poor air quality — a good time to visit. It ranks #3 of 12 months for Cotonou on SeasonMap's comfort score (68/100).
- What is the weather like in Cotonou in December?
- In December, Cotonou averages a daily high of 30°C and a low of 25.9°C, with about 26.8 mm of rain over roughly 8.8 rainy days.
- What is the air quality in Cotonou in December?
- Cotonou has a mean US Air Quality Index of about 119 in December.