Average annual temperature is 10.7 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: -11.6 °C
Number of sunny days: 155 days
Number of rainy days: 188 days
Number of snow days: 22 days
Look at detailed online map of Gölcük
* Weather data for Gölcük 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) | 12.0 | 12.3 | 16.3 | 17.4 | 24.8 | 26.0 | 32.9 | 37.2 | 27.5 | 23.9 | 20.2 | 13.6 |
| Average daytime temperature (°C) | 7.2 | 3.0 | 8.7 | 12.0 | 16.1 | 20.3 | 24.9 | 28.3 | 22.7 | 18.5 | 11.7 | 8.9 |
| Average temperature (°C) | 2.9 | -0.3 | 4.7 | 7.6 | 11.9 | 16.2 | 19.7 | 22.3 | 16.9 | 13.4 | 7.9 | 5.0 |
| Average night temperature (°C) | -0.2 | -3.8 | 0.8 | 3.8 | 8.1 | 12.0 | 14.1 | 17.1 | 12.1 | 8.9 | 4.2 | 1.6 |
| Absolute minimum temperature (°C) | -4.6 | -11.6 | -11.6 | -1.1 | 1.7 | 9.3 | 10.0 | 13.0 | 8.2 | 4.4 | -5.2 | -3.2 |
| 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) | 9.6 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.8 | 12.5 | 11.1 | 9.9 | 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) | 6.6 | 5.8 | 5.6 | 7.6 | 8.2 | 11.8 | 12.9 | 11.5 | 10.8 | 8.7 | 5.0 | 5.9 |
| Precipitation (mm) | 33 | 96 | 158 | 159 | 154 | 113 | 66 | 41 | 31 | 45 | 172 | 91 |
| Sunny days | 21 | 9 | 8 | 4 | 4 | 6 | 17 | 25 | 17 | 20 | 7 | 17 |
| Rainy days | 7 | 5 | 20 | 26 | 27 | 24 | 14 | 6 | 13 | 11 | 21 | 14 |
| Snow days | 3 | 14 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 |
The best time to visit Gölcük during the most sunny months:
The largest precipitation sum in Gölcük is at