Average annual temperature is 8.6 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -21.6 °C
Number of sunny days: 183 days
Number of rainy days: 154 days
Number of snow days: 28 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) | 9.7 | 10.6 | 14.8 | 19.2 | 22.3 | 25.9 | 32.7 | 35.5 | 31.1 | 21.6 | 19.9 | 10.8 |
| Average daytime temperature (°C) | 4.8 | -2.3 | 9.0 | 12.8 | 17.1 | 20.9 | 25.4 | 30.4 | 24.6 | 18.2 | 11.6 | 6.8 |
| Average temperature (°C) | -1.5 | -6.4 | 3.8 | 7.0 | 10.8 | 14.8 | 17.7 | 21.6 | 16.2 | 11.1 | 6.0 | 1.4 |
| Average night temperature (°C) | -5.9 | -11.1 | -0.8 | 1.3 | 4.7 | 8.7 | 9.7 | 13.3 | 8.9 | 5.1 | 0.7 | -2.5 |
| Absolute minimum temperature (°C) | -8.8 | -21.6 | -11.6 | -8.2 | -1.9 | 5.9 | 5.3 | 9.2 | 2.4 | 1.5 | -12.1 | -8.2 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 7.4 | 7.2 | 7.3 | 8.6 | 11.1 | 11.6 | 12.8 | 12.6 | 11.0 | 9.1 | 6.5 | 5.6 |
| Precipitation (mm) | 13 | 34 | 159 | 160 | 114 | 73 | 16 | 4 | 11 | 44 | 87 | 73 |
| Sunny days | 20 | 13 | 4 | 3 | 7 | 8 | 25 | 28 | 25 | 21 | 13 | 16 |
| Rainy days | 1 | 2 | 25 | 27 | 24 | 22 | 6 | 3 | 5 | 10 | 15 | 14 |
| Snow days | 10 | 13 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Gölcük during the most sunny months:
The largest precipitation sum in Gölcük is at