Kocaeli Weather & Climate: Best Time to Visit

The climate in Kocaeli is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in August, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like January.

At night, you can expect temperatures ranging from 19°C (66°F) in August to around 1°C (34°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Kocaeli receives mid-range precipitation levels, with 966 mm (38 in) annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives high rainfall, averaging 112 mm (4.4 in) of precipitation, recorded across 16 rainy days. In contrast, the driest month August brings less rainfall, with 44 mm (1.7 in) over 6 rainy days. For more details, please visit our Kocaeli Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Kocaeli. While July receives considerable daily sunshine with up to 9.6 hours, January marks the darkest time of the year, where sunshine is scarce with only 2.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine