Average annual temperature is 23.7 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: 16.5 °C
Number of sunny days: 22 days
Number of rainy days: 343 days
Look at detailed online map of Bisono
* Weather data for Bisono Gabon is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.7 | 33.3 | 33.3 | 32.4 | 32.1 | 31.6 | 30.8 | 31.8 | 31.4 | 32.0 | 31.9 | 32.5 |
| Average daytime temperature (°C) | 29.9 | 31.4 | 29.6 | 29.5 | 29.6 | 28.9 | 29.3 | 29.5 | 29.5 | 29.4 | 28.9 | 30.4 |
| Average temperature (°C) | 23.7 | 24.6 | 23.5 | 23.5 | 24.0 | 23.5 | 23.6 | 23.7 | 23.5 | 23.4 | 23.2 | 24.2 |
| Average night temperature (°C) | 19.7 | 20.0 | 20.2 | 20.1 | 20.7 | 20.5 | 20.2 | 20.4 | 20.5 | 20.4 | 20.2 | 20.1 |
| Absolute minimum temperature (°C) | 17.4 | 17.1 | 17.7 | 18.3 | 19.8 | 19.6 | 19.4 | 19.5 | 19.6 | 19.3 | 18.8 | 16.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.0 | 12.0 | 12.1 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 |
| Daylight minimum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 |
| Sunshine mean duration (h) | 8.1 | 9.2 | 7.2 | 7.6 | 8.3 | 7.5 | 7.9 | 7.1 | 7.0 | 7.5 | 6.6 | 8.3 |
| Precipitation (mm) | 45 | 52 | 231 | 215 | 204 | 169 | 102 | 183 | 220 | 266 | 368 | 86 |
| Sunny days | 3 | 5 | 2 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 9 |
| Rainy days | 28 | 23 | 29 | 29 | 30 | 30 | 31 | 30 | 30 | 31 | 30 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bisono is at