Average annual temperature is 24.5 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 13.8 °C
Number of sunny days: 148 days
Number of rainy days: 217 days
Look at detailed online map of Bona
* Weather data for Bona Guinea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 33.5 | 35.0 | 37.6 | 35.9 | 34.9 | 33.2 | 31.5 | 33.0 | 33.2 | 33.2 | 33.1 | 32.6 |
| Average daytime temperature (°C) | 31.6 | 33.8 | 34.4 | 34.3 | 32.7 | 29.8 | 28.8 | 28.9 | 29.7 | 30.5 | 31.6 | 31.0 |
| Average temperature (°C) | 23.6 | 26.0 | 26.7 | 26.7 | 25.8 | 23.6 | 23.1 | 23.2 | 23.5 | 24.1 | 24.8 | 23.2 |
| Average night temperature (°C) | 16.8 | 19.4 | 20.8 | 21.2 | 21.4 | 20.2 | 19.9 | 20.0 | 19.9 | 20.0 | 19.3 | 16.2 |
| Absolute minimum temperature (°C) | 14.5 | 16.6 | 18.8 | 19.7 | 20.4 | 19.1 | 19.1 | 19.0 | 19.3 | 18.1 | 16.6 | 13.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.6 | 11.8 | 12.1 | 12.3 | 12.5 | 12.7 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.6 | 10.3 | 9.5 | 9.8 | 9.0 | 8.7 | 8.4 | 7.8 | 8.7 | 9.7 | 10.0 | 10.7 |
| Precipitation (mm) | 1 | 0 | 15 | 55 | 127 | 180 | 210 | 300 | 296 | 107 | 41 | 0 |
| Sunny days | 28 | 27 | 20 | 17 | 9 | 0 | 0 | 0 | 0 | 6 | 11 | 30 |
| Rainy days | 3 | 1 | 11 | 13 | 22 | 30 | 31 | 31 | 30 | 25 | 19 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bona is at