Average annual temperature is 13.1 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: -11.5 °C
Number of sunny days: 230 days
Number of rainy days: 125 days
Number of snow days: 10 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) | 8.2 | 10.3 | 15.1 | 18.6 | 24.1 | 31.1 | 36.0 | 38.7 | 34.5 | 23.4 | 21.7 | 13.1 |
| Average daytime temperature (°C) | 4.3 | 1.1 | 11.1 | 14.3 | 19.1 | 25.7 | 31.6 | 34.3 | 29.0 | 20.0 | 12.7 | 7.6 |
| Average temperature (°C) | 1.3 | -1.7 | 7.1 | 9.8 | 14.3 | 20.4 | 25.3 | 27.9 | 23.0 | 15.4 | 9.2 | 4.7 |
| Average night temperature (°C) | -0.9 | -4.4 | 3.6 | 5.4 | 9.5 | 15.0 | 18.3 | 21.3 | 17.4 | 11.5 | 6.2 | 2.1 |
| Absolute minimum temperature (°C) | -3.0 | -11.5 | -3.2 | -3.9 | 4.0 | 11.9 | 13.0 | 16.8 | 11.6 | 8.1 | -2.9 | -4.1 |
| 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 | 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 | 14.5 | 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) | 7.1 | 7.2 | 7.4 | 9.5 | 11.9 | 13.0 | 13.1 | 12.6 | 11.2 | 9.5 | 6.8 | 6.2 |
| Precipitation (mm) | 21 | 96 | 184 | 96 | 55 | 9 | 0 | 1 | 2 | 28 | 147 | 105 |
| Sunny days | 22 | 20 | 10 | 9 | 12 | 18 | 28 | 29 | 28 | 19 | 17 | 18 |
| Rainy days | 4 | 5 | 19 | 21 | 19 | 12 | 3 | 2 | 2 | 12 | 13 | 13 |
| Snow days | 5 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Gölcük during the most sunny months:
The largest precipitation sum in Gölcük is at