Average annual temperature is 26.4 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 17.5 °C
Number of sunny days: 130 days
Number of rainy days: 235 days
Look at detailed online map of Hériko
* Weather data for Hériko 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) | 37.6 | 36.1 | 36.9 | 37.4 | 34.9 | 32.0 | 32.4 | 31.8 | 32.1 | 32.8 | 34.1 | 36.3 |
| Average daytime temperature (°C) | 34.7 | 34.3 | 34.0 | 34.4 | 32.5 | 29.9 | 29.2 | 28.6 | 29.9 | 30.5 | 32.0 | 33.8 |
| Average temperature (°C) | 26.2 | 27.0 | 27.3 | 28.1 | 27.7 | 25.8 | 25.3 | 25.2 | 25.5 | 25.9 | 26.8 | 26.4 |
| Average night temperature (°C) | 20.4 | 22.1 | 23.1 | 24.0 | 24.9 | 23.7 | 23.0 | 23.2 | 23.3 | 23.3 | 23.4 | 21.1 |
| Absolute minimum temperature (°C) | 17.9 | 20.5 | 21.2 | 22.3 | 24.1 | 22.8 | 21.6 | 22.4 | 22.4 | 22.6 | 22.7 | 17.5 |
| 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) | 11.6 | 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 | 10.1 | 10.1 | 9.9 | 7.9 | 6.5 | 7.2 | 5.5 | 6.5 | 7.6 | 9.5 | 10.0 |
| Precipitation (mm) | 0 | 1 | 5 | 37 | 249 | 529 | 629 | 723 | 514 | 450 | 99 | 2 |
| Sunny days | 29 | 26 | 23 | 13 | 3 | 0 | 0 | 0 | 0 | 0 | 8 | 28 |
| Rainy days | 2 | 2 | 8 | 17 | 28 | 30 | 31 | 31 | 30 | 31 | 22 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hériko is at