Climate averages 1991–2020
Bissau weather
in July.
A hot, very wet month: the 11th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Bissau: daytime highs average 28.9°C and nights cool to about 24.6°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 352 mm of rain on roughly 28 days, which makes July a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average July day.
The nearest other city in this atlas is Ziguinchor (107 km away). In July its highs average 30.4°C, 1.5°C warmer than Bissau, with 277 mm of rain.
From July to August, average highs fall by 0.6°C to 28.3°C, and monthly rainfall rises from 352 mm to 452 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bissau climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.9°C20.5°C | 20.5°C | 0.3 | 0.1 | 11.512 h |
| February | 34.4°C21.2°C | 21.2°C | 0.8 | 0.1 | 11.712 h |
| March | 35.2°C22.4°C | 22.4°C | 0 | 0.0 | 12.112 h |
| April | 34.8°C23.2°C | 23.2°C | 0 | 0.0 | 12.412 h |
| May | 33.8°C24.2°C | 24.2°C | 6.1 | 1.3 | 12.713 h |
| June | 31.7°C25.3°C | 25.3°C | 87 | 12.0 | 12.813 h |
| July, selected | 28.9°C24.6°C | 24.6°C | 352 | 27.8 | 12.713 h |
| August | 28.3°C24.3°C | 24.3°C | 452 | 29.3 | 12.513 h |
| September | 29.1°C24.4°C | 24.4°C | 307 | 27.7 | 12.212 h |
| October | 30.3°C25.0°C | 25.0°C | 142 | 21.9 | 11.912 h |
| November | 31.9°C24.3°C | 24.3°C | 23 | 4.6 | 11.612 h |
| December | 32.8°C21.6°C | 21.6°C | 1.9 | 0.3 | 11.411 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Ziguinchor in JulySenegal · 107 kmHigh 30.4°C · Low 24.2°C · 277 mm rain
- Kolda in JulySenegal · 135 kmHigh 31.0°C · Low 24.0°C · 204 mm rain
- Kamsar in JulyGuinea · 172 kmHigh 27.7°C · Low 24.2°C · 497 mm rain
- Brikama in JulyGambia · 194 kmHigh 29.5°C · Low 25.1°C · 153 mm rain
- Banjul in JulyGambia · 206 kmHigh 29.3°C · Low 25.4°C · 130 mm rain
- Serekunda in JulyGambia · 211 kmHigh 28.9°C · Low 25.5°C · 118 mm rain
- Kaolack in JulySenegal · 260 kmHigh 32.8°C · Low 24.2°C · 84 mm rain
- Tambacounda in JulySenegal · 298 kmHigh 33.3°C · Low 24.7°C · 123 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bissau) is explained once on the Bissau year overview and on the Sources, method and limits page.