Bissau weather in December
December in Bissau: sweltering, dry, with poor air quality — one of the best months to visit.
#2 of 12 months in Bissau · #156 of 604 destinations to visit in December · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Bissau climate normals — December
| Daytime high | 34°C / 93°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Feels like (high) | 34°C / 93°F | |
| Rainfall | 1 mm / 0 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 53% | 🍃 comfortable |
| Dew point | 15°C / 58°F | |
| Sunshine | 10 h/day | |
| Daylight | 11.4 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 120 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Bissau in December — FAQ
- Is December a good time to visit Bissau?
- December in Bissau: sweltering, dry, with poor air quality — one of the best months to visit. It ranks #2 of 12 months for Bissau on SeasonMap's comfort score (80/100).
- What is the weather like in Bissau in December?
- In December, Bissau averages a daily high of 33.8°C and a low of 21.7°C, with about 0.6 mm of rain over roughly 0.2 rainy days.
- What is the air quality in Bissau in December?
- Bissau has a mean US Air Quality Index of about 120 in December.