Average annual temperature is 25.0 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: 16.4 °C
Number of sunny days: 117 days
Number of rainy days: 248 days
Look at detailed online map of Sandian
* Weather data for Sandian 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) | 34.0 | 35.9 | 35.9 | 34.9 | 33.8 | 31.4 | 31.9 | 31.5 | 31.5 | 32.5 | 32.5 | 34.9 |
| Average daytime temperature (°C) | 33.0 | 34.3 | 33.3 | 32.7 | 31.1 | 28.8 | 28.7 | 28.4 | 29.1 | 29.9 | 30.9 | 32.8 |
| Average temperature (°C) | 25.1 | 26.8 | 26.2 | 26.2 | 25.4 | 24.2 | 23.8 | 23.7 | 24.0 | 24.3 | 24.8 | 25.1 |
| Average night temperature (°C) | 18.5 | 20.2 | 21.1 | 22.1 | 22.2 | 21.5 | 21.1 | 21.2 | 21.3 | 21.1 | 20.5 | 19.0 |
| Absolute minimum temperature (°C) | 16.4 | 17.2 | 18.8 | 20.8 | 21.0 | 20.6 | 19.4 | 19.9 | 20.7 | 19.6 | 17.8 | 17.3 |
| 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) | 11.7 | 11.8 | 12.1 | 12.3 | 12.5 | 12.6 | 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 | 9.1 | 9.1 | 8.2 | 6.9 | 7.6 | 6.4 | 7.9 | 8.5 | 9.4 | 10.6 |
| Precipitation (mm) | 38 | 2 | 76 | 141 | 249 | 263 | 255 | 338 | 307 | 298 | 79 | 0 |
| Sunny days | 28 | 26 | 16 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 10 | 30 |
| Rainy days | 3 | 2 | 15 | 24 | 30 | 30 | 31 | 31 | 30 | 31 | 20 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sandian is at