Bissau monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at Bissau
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 32.5 | 34.1 | 34.8 | 34.8 | 34.3 | 32.3 | 30.1 | 29.7 | 30.3 | 31.6 | 32.6 | 31.7 |
| °F | 90.5 | 93.4 | 94.6 | 94.6 | 93.7 | 90.2 | 86.1 | 85.5 | 86.6 | 89 | 90.6 | 89.1 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
Average rainfall & rainy days
The graph below shows the average rainfall and number of rainy days per month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 0 | 1 | 0 | 0 | 21 | 148 | 409 | 544 | 389 | 150 | 16 | 1 |
| inches | 0 | 0 | 0 | 0 | 0.8 | 5.8 | 16.1 | 21.4 | 15.3 | 5.9 | 0.6 | 0.1 |
| Rainy days | 0 | 0 | 0 | 1 | 3 | 10 | 18 | 22 | 19 | 10 | 2 | 1 |
Average annual rainfall in Bissau: 1675.834mm (659.8 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in Bissau
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 8.4 | 9 | 9.2 | 9.2 | 8.9 | 7.6 | 5.8 | 5.3 | 6.4 | 7.7 | 8.7 | 8.2 |
Day / night temperatures
The graph below shows the daily range of temperatures for each month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | 17.8 | 18.7 | 20.1 | 20.5 | 22.3 | 23.1 | 23.2 | 23.1 | 22.9 | 23.2 | 21.4 | 18.6 |
| Max °C | 32.9 | 34.5 | 35.2 | 35.1 | 34.6 | 32.6 | 30.3 | 29.9 | 30.5 | 31.9 | 32.9 | 32.1 |
| Min °F | 64 | 65.7 | 68.1 | 68.9 | 72.1 | 73.5 | 73.7 | 73.6 | 73.2 | 73.7 | 70.4 | 65.4 |
| Max °F | 77.5 | 79.9 | 81.7 | 82 | 83.1 | 82 | 80.1 | 79.7 | 80.1 | 81.5 | 80.8 | 77.5 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 24.9 | 24.1 | 23.9 | 24.3 | 26 | 28.1 | 28.3 | 27.8 | 28.1 | 28.7 | 28.6 | 27.1 |
| °F | 76.8 | 75.3 | 75 | 75.8 | 78.9 | 82.6 | 82.9 | 82.1 | 82.6 | 83.7 | 83.6 | 80.7 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 5 | 6 | 6 | 7 | 7 | 6 | 5 | 5 | 5 | 4 | 4 | 5 |
| mph | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 3 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
Relative humidity
The graph below shows the average relative humidity.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 49% | 50% | 49% | 51% | 60% | 71% | 78% | 83% | 85% | 79% | 68% | 55% |
Other monthly averages
Bissau weather stats
| Hottest month: | May | 34.3°C 93.7°F |
|---|---|---|
| Driest month: | April | 0mm 0ins |
| Sunniest month: | March | 9.2hrs |
| Coldest month: | January | 32.5°C 90.5°F |
| Wettest month: | August | 544mm 21.4ins |
| Warmest sea: | October | 28.7°C 83.7°F |
© Google