Average annual temperature is 8.4 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -20.4 °C
Number of sunny days: 198 days
Number of rainy days: 138 days
Number of snow days: 29 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) | 10.2 | 8.8 | 12.5 | 17.6 | 22.4 | 26.4 | 31.7 | 34.8 | 29.6 | 20.5 | 17.9 | 12.8 |
| Average daytime temperature (°C) | 4.5 | -2.6 | 7.2 | 11.1 | 16.2 | 20.3 | 25.8 | 29.8 | 23.9 | 17.5 | 11.1 | 6.7 |
| Average temperature (°C) | -1.5 | -6.8 | 2.6 | 5.8 | 10.4 | 14.6 | 18.6 | 22.1 | 16.2 | 10.9 | 5.3 | 1.3 |
| Average night temperature (°C) | -6.2 | -11.2 | -1.5 | 0.9 | 4.1 | 9.0 | 10.9 | 14.2 | 9.2 | 4.8 | 0.3 | -2.8 |
| Absolute minimum temperature (°C) | -12.9 | -20.4 | -13.4 | -12.4 | -1.2 | 6.2 | 5.2 | 9.4 | 4.5 | 1.0 | -14.1 | -7.5 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 7.9 | 7.2 | 7.3 | 8.8 | 11.5 | 11.3 | 13.1 | 12.3 | 11.2 | 9.3 | 7.3 | 6.4 |
| Precipitation (mm) | 21 | 37 | 136 | 137 | 75 | 103 | 14 | 30 | 10 | 58 | 94 | 36 |
| Sunny days | 23 | 15 | 7 | 5 | 7 | 9 | 25 | 29 | 24 | 20 | 15 | 19 |
| Rainy days | 0 | 3 | 21 | 24 | 24 | 21 | 6 | 2 | 6 | 11 | 12 | 8 |
| Snow days | 8 | 10 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 |
The best time to visit Gölcük during the most sunny months:
The largest precipitation sum in Gölcük is at