Average annual temperature is 26.2 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 16.1 °C
Number of sunny days: 187 days
Number of rainy days: 178 days
Look at detailed online map of Gianvélia
* Weather data for Gianvélia 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) | 34.1 | 35.5 | 37.5 | 38.1 | 36.6 | 35.2 | 32.3 | 32.0 | 33.1 | 33.5 | 33.9 | 33.6 |
| Average daytime temperature (°C) | 31.4 | 34.0 | 35.5 | 36.6 | 33.7 | 31.3 | 30.0 | 29.1 | 29.7 | 30.4 | 32.9 | 31.4 |
| Average temperature (°C) | 24.9 | 27.3 | 28.6 | 29.6 | 27.8 | 25.8 | 24.6 | 24.2 | 24.6 | 25.3 | 26.5 | 25.1 |
| Average night temperature (°C) | 18.9 | 20.9 | 22.2 | 23.2 | 23.5 | 22.3 | 21.5 | 21.3 | 21.3 | 21.5 | 20.7 | 19.2 |
| Absolute minimum temperature (°C) | 16.3 | 18.5 | 19.6 | 22.1 | 21.7 | 21.3 | 20.7 | 20.3 | 20.5 | 19.5 | 17.7 | 16.1 |
| 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 | 12.4 | 12.6 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.5 |
| 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 | 10.0 | 10.3 | 10.3 | 9.2 | 9.7 | 9.5 | 8.4 | 9.1 | 9.3 | 10.5 | 10.4 |
| Precipitation (mm) | 0 | 0 | 0 | 1 | 101 | 167 | 319 | 331 | 312 | 120 | 4 | 0 |
| Sunny days | 31 | 27 | 29 | 28 | 9 | 3 | 0 | 1 | 1 | 5 | 22 | 31 |
| Rainy days | 0 | 1 | 2 | 2 | 22 | 27 | 31 | 30 | 29 | 26 | 8 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gianvélia is at