Average annual temperature is 26.8 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: 16.9 °C
Number of sunny days: 139 days
Number of rainy days: 226 days
Look at detailed online map of Siréya
* Weather data for Siréya 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) | 39.1 | 39.2 | 40.1 | 39.3 | 35.9 | 33.4 | 32.3 | 32.7 | 32.2 | 32.2 | 34.3 | 36.5 |
| Average daytime temperature (°C) | 36.8 | 37.3 | 36.9 | 36.4 | 33.4 | 30.3 | 29.9 | 29.3 | 30.0 | 30.5 | 32.1 | 34.3 |
| Average temperature (°C) | 27.7 | 28.8 | 28.5 | 28.9 | 27.8 | 25.7 | 25.3 | 25.0 | 25.3 | 25.8 | 26.6 | 26.2 |
| Average night temperature (°C) | 20.5 | 22.5 | 22.9 | 23.9 | 24.5 | 23.4 | 22.8 | 22.8 | 22.9 | 23.1 | 22.7 | 19.7 |
| Absolute minimum temperature (°C) | 18.5 | 21.3 | 21.1 | 22.1 | 23.5 | 22.1 | 21.1 | 21.8 | 21.9 | 22.5 | 21.0 | 16.9 |
| 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 | 12.6 | 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) | 10.0 | 10.0 | 10.0 | 9.4 | 7.7 | 6.7 | 7.7 | 6.3 | 6.7 | 7.0 | 9.0 | 10.0 |
| Precipitation (mm) | 0 | 0 | 15 | 55 | 203 | 272 | 375 | 488 | 417 | 397 | 78 | 2 |
| Sunny days | 31 | 28 | 22 | 18 | 2 | 0 | 0 | 1 | 0 | 0 | 9 | 28 |
| Rainy days | 0 | 0 | 9 | 12 | 29 | 30 | 31 | 30 | 30 | 31 | 21 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siréya is at