Average annual temperature is 23.6 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 7 days
Number of rainy days: 358 days
Look at detailed online map of Bissam
* Weather data for Bissam 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) | 31.9 | 33.0 | 32.5 | 31.8 | 32.0 | 31.0 | 30.9 | 31.4 | 31.1 | 31.3 | 31.2 | 33.0 |
| Average daytime temperature (°C) | 29.2 | 30.3 | 29.1 | 29.6 | 29.8 | 29.1 | 28.7 | 29.1 | 29.0 | 28.5 | 28.8 | 30.2 |
| Average temperature (°C) | 23.3 | 24.1 | 23.5 | 23.8 | 24.1 | 23.5 | 23.4 | 23.7 | 23.6 | 23.2 | 23.1 | 24.3 |
| Average night temperature (°C) | 20.0 | 20.7 | 20.6 | 20.6 | 21.2 | 20.4 | 20.3 | 20.3 | 20.8 | 20.8 | 20.7 | 21.2 |
| Absolute minimum temperature (°C) | 18.5 | 18.9 | 19.2 | 19.4 | 20.4 | 18.4 | 19.2 | 18.8 | 19.8 | 20.0 | 20.1 | 20.1 |
| 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) | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Daylight minimum 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 |
| Sunshine mean duration (h) | 7.1 | 8.5 | 7.0 | 7.7 | 7.9 | 6.7 | 6.3 | 7.3 | 6.6 | 6.5 | 5.8 | 7.9 |
| Precipitation (mm) | 204 | 146 | 295 | 310 | 257 | 146 | 91 | 114 | 163 | 447 | 571 | 265 |
| Sunny days | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 2 |
| Rainy days | 31 | 28 | 30 | 29 | 31 | 29 | 30 | 30 | 30 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bissam is at