Average annual temperature is 16.5 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: -2.6 °C
Number of sunny days: 202 days
Number of rainy days: 161 days
Number of snow days: 2 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) | 17.9 | 18.3 | 19.7 | 20.9 | 24.2 | 28.3 | 38.7 | 35.3 | 30.9 | 27.3 | 27.8 | 21.0 |
| Average daytime temperature (°C) | 11.5 | 10.7 | 13.4 | 16.0 | 19.8 | 24.9 | 30.8 | 31.4 | 27.3 | 23.2 | 18.1 | 13.6 |
| Average temperature (°C) | 8.9 | 6.9 | 10.0 | 12.6 | 16.4 | 21.5 | 26.6 | 27.0 | 23.2 | 19.1 | 14.6 | 10.6 |
| Average night temperature (°C) | 6.5 | 3.2 | 6.8 | 9.2 | 13.2 | 17.7 | 21.7 | 23.1 | 19.8 | 15.3 | 11.5 | 7.6 |
| Absolute minimum temperature (°C) | 0.9 | -2.6 | 1.9 | 5.4 | 9.5 | 14.7 | 17.5 | 20.1 | 16.4 | 11.1 | 2.2 | 1.4 |
| 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 | 14.8 | 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) | 5.4 | 8.0 | 7.2 | 9.1 | 10.5 | 13.1 | 13.4 | 11.9 | 10.8 | 9.3 | 6.1 | 5.1 |
| Precipitation (mm) | 43 | 20 | 104 | 121 | 74 | 54 | 20 | 0 | 35 | 21 | 189 | 78 |
| Sunny days | 15 | 20 | 11 | 7 | 8 | 18 | 25 | 28 | 20 | 25 | 8 | 17 |
| Rainy days | 16 | 6 | 20 | 23 | 23 | 12 | 6 | 3 | 10 | 6 | 22 | 14 |
| Snow days | 0 | 2 | 0 | 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