Average annual temperature is 13.7 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: -9.0 °C
Number of sunny days: 196 days
Number of rainy days: 161 days
Number of snow days: 8 days
Look at detailed online map of Kocaiskan
* Weather data for Kocaiskan 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) | 14.6 | 19.2 | 18.7 | 20.8 | 28.3 | 29.2 | 38.8 | 36.8 | 31.3 | 27.7 | 26.8 | 17.2 |
| Average daytime temperature (°C) | 9.8 | 7.5 | 11.9 | 15.1 | 18.7 | 23.7 | 30.5 | 30.7 | 26.1 | 21.9 | 16.1 | 11.8 |
| Average temperature (°C) | 5.7 | 3.0 | 7.5 | 10.3 | 13.7 | 18.4 | 24.1 | 24.1 | 19.8 | 16.2 | 12.0 | 8.4 |
| Average night temperature (°C) | 2.6 | -1.0 | 3.8 | 6.2 | 9.8 | 14.1 | 17.8 | 18.7 | 15.1 | 11.7 | 8.4 | 5.4 |
| Absolute minimum temperature (°C) | -4.3 | -9.0 | -2.0 | 2.2 | 5.6 | 11.3 | 13.3 | 16.1 | 12.3 | 7.7 | -2.2 | -0.9 |
| 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 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 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) | 6.7 | 7.1 | 7.2 | 9.4 | 9.1 | 11.5 | 13.3 | 11.9 | 10.6 | 8.9 | 6.3 | 6.0 |
| Precipitation (mm) | 88 | 48 | 131 | 96 | 100 | 73 | 1 | 2 | 33 | 29 | 153 | 82 |
| Sunny days | 23 | 15 | 9 | 7 | 8 | 12 | 27 | 27 | 20 | 21 | 10 | 17 |
| Rainy days | 8 | 5 | 22 | 23 | 23 | 18 | 4 | 4 | 10 | 10 | 20 | 14 |
| Snow days | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Kocaiskan during the most sunny months:
The largest precipitation sum in Kocaiskan is at