Bissau weather in August
August in Bissau: hot, soaked, with clean air — one of the weakest months to visit.
#12 of 12 months in Bissau · #556 of 604 destinations to visit in August · comfort 48/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Bissau climate normals — August
| Daytime high | 29°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 536 mm / 21.1 in | ⛈ soaked |
| Rainy days | 29 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 6.9 h/day | |
| Daylight | 12.5 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 32 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Bissau in August — FAQ
- Is August a good time to visit Bissau?
- August in Bissau: hot, soaked, with clean air — one of the weakest months to visit. It ranks #12 of 12 months for Bissau on SeasonMap's comfort score (48/100).
- What is the weather like in Bissau in August?
- In August, Bissau averages a daily high of 28.5°C and a low of 24.6°C, with about 536.3 mm of rain over roughly 28.6 rainy days.
- What is the air quality in Bissau in August?
- Bissau has a mean US Air Quality Index of about 32 in August.