Average annual temperature is 25.4 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 14.3 °C
Number of sunny days: 142 days
Number of rainy days: 223 days
Look at detailed online map of Marna
* Weather data for Marna 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) | 34.8 | 36.9 | 37.6 | 35.9 | 35.2 | 32.3 | 32.1 | 32.6 | 32.3 | 33.0 | 33.8 | 34.6 |
| Average daytime temperature (°C) | 32.9 | 35.1 | 35.3 | 34.2 | 32.0 | 29.7 | 29.2 | 28.7 | 29.8 | 30.4 | 31.9 | 32.4 |
| Average temperature (°C) | 24.5 | 27.4 | 27.9 | 27.4 | 26.0 | 24.7 | 24.2 | 24.0 | 24.3 | 24.7 | 25.3 | 24.2 |
| Average night temperature (°C) | 17.4 | 20.5 | 21.8 | 22.7 | 22.3 | 21.6 | 21.2 | 21.2 | 21.3 | 21.2 | 20.6 | 17.5 |
| Absolute minimum temperature (°C) | 15.2 | 17.9 | 19.2 | 21.6 | 20.7 | 20.7 | 20.5 | 20.7 | 20.7 | 19.7 | 18.0 | 14.3 |
| 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) | 11.6 | 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) | 10.2 | 10.0 | 9.5 | 9.1 | 8.6 | 7.6 | 8.0 | 7.2 | 8.4 | 9.0 | 9.8 | 10.6 |
| Precipitation (mm) | 7 | 2 | 31 | 63 | 249 | 189 | 276 | 333 | 438 | 222 | 70 | 0 |
| Sunny days | 28 | 27 | 22 | 13 | 3 | 0 | 1 | 0 | 0 | 4 | 14 | 30 |
| Rainy days | 3 | 1 | 9 | 17 | 28 | 30 | 30 | 31 | 30 | 27 | 16 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Marna is at