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Gölcük Weather by Month
Average temperatures, rainfall and humidity for Gölcük, Turkey, month by month, built from OpenWeather’s historical records. Use it to see what a typical Gölcük month looks like before you travel — then check the live Gölcük forecast for the days ahead.
Warmest month
August
31°C average high
Coolest month
January
1°C average low
Wettest month
March
79 mm of rain
Driest month
August
19 mm of rain
Average temperature and rainfall in Gölcük by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 10°C | 1°C | -13°C / 25°C | 51 mm | 82% | 9 km/h |
| February | 12°C | 2°C | -10°C / 26°C | 37 mm | 80% | 10 km/h |
| March | 14°C | 3°C | -6°C / 31°C | 79 mm | 77% | 9 km/h |
| April | 19°C | 6°C | -4°C / 33°C | 50 mm | 73% | 9 km/h |
| May | 23°C | 10°C | -1°C / 35°C | 41 mm | 75% | 9 km/h |
| June | 27°C | 15°C | 6°C / 37°C | 34 mm | 74% | 9 km/h |
| July | 30°C | 17°C | 8°C / 42°C | 19 mm | 71% | 11 km/h |
| August | 31°C | 18°C | 10°C / 41°C | 19 mm | 74% | 10 km/h |
| September | 27°C | 14°C | 4°C / 38°C | 42 mm | 75% | 9 km/h |
| October | 21°C | 10°C | 0°C / 35°C | 72 mm | 82% | 7 km/h |
| November | 16°C | 6°C | -3°C / 31°C | 47 mm | 83% | 8 km/h |
| December | 12°C | 3°C | -7°C / 24°C | 58 mm | 84% | 8 km/h |
Best time to visit Gölcük
The most comfortable time to visit Gölcük is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around March, totalling about 548 mm a year.
Travellers who prefer heat should aim for August, when highs average 31°C. March is the month to avoid if rain would spoil your plans — it averages 79 mm, roughly 4× the rainfall of the driest month (August).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Gölcük forecast for what is happening now.