Average annual temperature is 27.0 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: 12.5 °C
Number of sunny days: 200 days
Number of rainy days: 165 days
Look at detailed online map of Gialan
* Weather data for Gialan 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) | 36.0 | 38.9 | 39.1 | 40.4 | 39.7 | 38.0 | 32.8 | 31.6 | 32.8 | 33.1 | 34.2 | 34.8 |
| Average daytime temperature (°C) | 33.6 | 36.5 | 37.3 | 38.4 | 36.1 | 33.2 | 30.1 | 29.2 | 30.0 | 31.0 | 33.1 | 32.8 |
| Average temperature (°C) | 25.7 | 28.7 | 30.1 | 31.3 | 29.8 | 27.6 | 25.0 | 24.6 | 24.9 | 25.4 | 26.0 | 24.8 |
| Average night temperature (°C) | 18.2 | 21.0 | 22.6 | 24.4 | 24.9 | 23.5 | 21.6 | 21.6 | 21.3 | 21.1 | 18.9 | 16.4 |
| Absolute minimum temperature (°C) | 15.3 | 18.0 | 18.2 | 22.0 | 22.7 | 21.5 | 19.9 | 20.8 | 20.1 | 18.1 | 14.8 | 12.5 |
| 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) | 11.5 | 11.7 | 12.1 | 12.4 | 12.7 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.4 |
| 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) | 10.3 | 10.1 | 10.4 | 10.6 | 8.3 | 9.5 | 9.1 | 8.1 | 8.8 | 9.5 | 10.7 | 10.3 |
| Precipitation (mm) | 0 | 0 | 1 | 2 | 74 | 157 | 334 | 208 | 285 | 114 | 0 | 0 |
| Sunny days | 31 | 28 | 29 | 28 | 10 | 9 | 1 | 1 | 0 | 6 | 26 | 31 |
| Rainy days | 0 | 0 | 2 | 2 | 21 | 21 | 30 | 30 | 30 | 25 | 4 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gialan is at