Average annual temperature is 13.0 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: -12.6 °C
Number of sunny days: 181 days
Number of rainy days: 175 days
Number of snow days: 9 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) | 15.3 | 18.9 | 19.1 | 20.6 | 27.7 | 30.1 | 38.0 | 36.4 | 31.6 | 26.9 | 25.3 | 18.2 |
| Average daytime temperature (°C) | 10.3 | 7.4 | 12.1 | 14.9 | 19.0 | 23.8 | 29.8 | 31.1 | 26.2 | 21.8 | 15.6 | 12.6 |
| Average temperature (°C) | 4.7 | 2.0 | 7.3 | 9.7 | 13.9 | 18.4 | 22.7 | 24.0 | 19.3 | 15.3 | 10.7 | 7.4 |
| Average night temperature (°C) | 0.4 | -3.4 | 3.0 | 4.8 | 9.5 | 13.5 | 15.7 | 17.8 | 13.7 | 9.9 | 5.9 | 3.4 |
| Absolute minimum temperature (°C) | -4.5 | -12.6 | -3.2 | 1.3 | 2.3 | 10.7 | 12.0 | 14.8 | 9.5 | 6.3 | -5.6 | -1.3 |
| 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) | 6.5 | 6.8 | 6.6 | 9.1 | 9.1 | 11.9 | 13.5 | 12.1 | 10.7 | 9.1 | 6.3 | 6.2 |
| Precipitation (mm) | 52 | 63 | 93 | 125 | 122 | 106 | 12 | 2 | 40 | 37 | 196 | 70 |
| Sunny days | 18 | 16 | 10 | 7 | 7 | 9 | 23 | 26 | 18 | 23 | 8 | 16 |
| Rainy days | 12 | 6 | 20 | 23 | 24 | 21 | 8 | 5 | 12 | 8 | 21 | 15 |
| Snow days | 1 | 6 | 1 | 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