Average annual temperature is 5.9 °C
Absolute maximum temperature: 30.0 °C
Absolute minimum temperature: -18.5 °C
Number of sunny days: 144 days
Number of rainy days: 177 days
Number of snow days: 44 days
Look at detailed online map of Giresun
* Weather data for Giresun Turkey is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 5.8 | 8.7 | 9.3 | 14.8 | 19.2 | 22.2 | 28.3 | 30.0 | 25.9 | 17.9 | 16.3 | 8.5 |
| Average daytime temperature (°C) | 1.1 | -3.4 | 4.7 | 8.0 | 13.6 | 17.0 | 18.6 | 22.7 | 17.8 | 14.2 | 8.2 | 3.2 |
| Average temperature (°C) | -4.1 | -6.7 | 1.4 | 3.7 | 8.2 | 12.4 | 13.7 | 17.1 | 12.2 | 8.5 | 4.1 | -0.6 |
| Average night temperature (°C) | -9.5 | -10.5 | -1.7 | -0.5 | 3.1 | 7.1 | 8.2 | 11.3 | 7.0 | 3.9 | 0.4 | -4.0 |
| Absolute minimum temperature (°C) | -18.5 | -18.4 | -14.5 | -14.9 | -8.4 | 4.4 | 3.1 | 6.1 | 1.4 | -0.2 | -11.4 | -15.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 5.7 | 7.3 | 8.3 | 10.5 | 10.7 | 11.9 | 12.3 | 10.6 | 8.0 | 6.1 | 4.8 |
| Precipitation (mm) | 16 | 92 | 171 | 147 | 91 | 169 | 70 | 14 | 38 | 84 | 120 | 67 |
| Sunny days | 20 | 12 | 4 | 6 | 7 | 4 | 21 | 19 | 9 | 17 | 11 | 14 |
| Rainy days | 1 | 2 | 22 | 23 | 22 | 26 | 10 | 12 | 21 | 14 | 15 | 9 |
| Snow days | 10 | 14 | 5 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 8 |
The best time to visit Giresun during the most sunny months:
The largest precipitation sum in Giresun is at