Average annual temperature is 28.6 °C
Absolute maximum temperature: 42.3 °C
Absolute minimum temperature: 15.4 °C
Number of sunny days: 216 days
Number of rainy days: 149 days
Look at detailed online map of Itiou
* Weather data for Itiou 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) | 38.5 | 40.5 | 41.0 | 42.3 | 40.8 | 39.7 | 34.5 | 32.3 | 32.8 | 33.9 | 35.7 | 37.0 |
| Average daytime temperature (°C) | 35.6 | 38.2 | 39.0 | 39.7 | 38.5 | 34.4 | 31.3 | 30.2 | 30.7 | 32.1 | 34.0 | 34.3 |
| Average temperature (°C) | 27.5 | 30.0 | 31.2 | 32.7 | 32.3 | 29.4 | 26.9 | 26.1 | 26.5 | 27.2 | 26.8 | 26.1 |
| Average night temperature (°C) | 20.4 | 21.9 | 23.4 | 25.9 | 27.1 | 25.5 | 23.9 | 23.5 | 23.4 | 23.7 | 20.3 | 19.1 |
| Absolute minimum temperature (°C) | 17.2 | 19.3 | 20.7 | 24.3 | 24.5 | 23.8 | 23.0 | 21.9 | 22.1 | 22.7 | 16.1 | 15.4 |
| 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 | 12.8 | 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) | 10.0 | 10.2 | 10.5 | 10.8 | 9.3 | 9.3 | 8.3 | 7.7 | 8.6 | 9.8 | 10.6 | 9.9 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 26 | 139 | 299 | 413 | 290 | 92 | 0 | 2 |
| Sunny days | 31 | 28 | 31 | 28 | 20 | 8 | 0 | 1 | 2 | 9 | 28 | 30 |
| Rainy days | 0 | 0 | 0 | 2 | 11 | 22 | 31 | 30 | 28 | 22 | 2 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Itiou is at