Average annual temperature is 13.4 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: -8.5 °C
Number of sunny days: 178 days
Number of rainy days: 180 days
Number of snow days: 7 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) | 17.4 | 20.1 | 18.8 | 21.8 | 28.1 | 28.1 | 39.0 | 36.1 | 31.1 | 26.3 | 26.8 | 18.6 |
| Average daytime temperature (°C) | 10.0 | 8.0 | 11.8 | 14.6 | 18.4 | 23.2 | 29.5 | 30.9 | 25.9 | 20.7 | 15.2 | 11.7 |
| Average temperature (°C) | 5.2 | 3.5 | 7.4 | 10.1 | 13.7 | 18.6 | 23.5 | 24.4 | 19.9 | 15.7 | 10.6 | 7.6 |
| Average night temperature (°C) | 1.2 | -0.8 | 3.7 | 5.9 | 9.6 | 14.1 | 17.2 | 19.0 | 15.1 | 11.5 | 6.6 | 3.9 |
| Absolute minimum temperature (°C) | -3.6 | -8.5 | -4.4 | 1.5 | 5.4 | 11.4 | 12.6 | 16.5 | 11.6 | 8.5 | -3.6 | -1.8 |
| 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 | 9.4 |
| 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) | 6.7 | 7.2 | 6.1 | 8.9 | 9.7 | 12.1 | 13.1 | 11.7 | 11.0 | 8.5 | 6.0 | 6.1 |
| Precipitation (mm) | 34 | 74 | 159 | 122 | 119 | 101 | 63 | 6 | 47 | 68 | 223 | 65 |
| Sunny days | 19 | 10 | 10 | 7 | 8 | 12 | 21 | 24 | 19 | 21 | 8 | 19 |
| Rainy days | 10 | 14 | 21 | 23 | 23 | 18 | 10 | 7 | 11 | 10 | 21 | 12 |
| Snow days | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Gölcük during the most sunny months:
The largest precipitation sum in Gölcük is at