Climate averages 1991–2020
Bissau weather
in April.
A very hot, very dry month: the 2nd warmest and one of the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a very hot month in Bissau: daytime highs average 34.8°C and nights cool to about 23.2°C. By daytime temperature it is the 2nd warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical April (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 23 min on an average April day.
The nearest other city in this atlas is Ziguinchor (107 km away). In April its highs average 37.1°C, 2.3°C warmer than Bissau, with almost no rain (under 1 mm).
From April to May, average highs fall by 1.0°C to 33.8°C, and monthly rainfall rises from under 1 mm to 6.1 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Ziguinchor in AprilSenegal · 107 kmHigh 37.1°C · Low 21.4°C · 0 mm rain
- Kolda in AprilSenegal · 135 kmHigh 39.1°C · Low 23.3°C · 0.1 mm rain
- Kamsar in AprilGuinea · 172 kmHigh 31.0°C · Low 23.8°C · 0.9 mm rain
- Brikama in AprilGambia · 194 kmHigh 31.5°C · Low 21.0°C · 0 mm rain
- Banjul in AprilGambia · 206 kmHigh 30.3°C · Low 21.1°C · 0 mm rain
- Serekunda in AprilGambia · 211 kmHigh 28.2°C · Low 20.9°C · 0 mm rain
- Kaolack in AprilSenegal · 260 kmHigh 37.3°C · Low 20.5°C · 0 mm rain
- Tambacounda in AprilSenegal · 298 kmHigh 41.0°C · Low 25.6°C · 0.3 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.