Kocaeli Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Kocaeli.
Climate overview of Kocaeli
Temperatures in Kocaeli, Marmara Region, Turkey, vary greatly throughout the year. August is the hottest month at 29°C (84°F), while January is the coldest at 9°C (48°F).
Kocaeli sees a moderate amount of rain/snowfall, totalling around 966 mm (38 in) per year. It experiences warm summers and cold winters, creating some seasonal variation. July is the sunniest month, averaging 9.6 hours of sunshine per day.
Kocaeli Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kocaeli - and find the best time to visit.
Monthly Temperature in Kocaeli
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
Rainfall in Kocaeli
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
Sunshine Hours in Kocaeli
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
Best Time to Visit Kocaeli
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August, September and October
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: June, July, August and September
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Kocaeli
What is the best time to visit Kocaeli?
May, June, July, August, September and October typically offer the most optimal weather in Kocaeli. In contrast, January, February and December tend to have less optimal conditions. Kocaeli has warm summers and cold winters.
What temperatures can I expect in Kocaeli?
Daytime highs range from 9°C (48°F) in January to 29°C (84°F) in August. Nighttime lows range from 1°C (34°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Kocaeli get?
Annual rainfall is around 966 mm (38 in). December is the wettest month with 112 mm (4.4 in), while August is the driest with 44 mm (1.7 in).
How sunny is Kocaeli?
Kocaeli receives around 2,043 hours of sunshine per year. July is the sunniest month with 287 hours, while January is the cloudiest with just 76 hours. Overall, Kocaeli enjoys abundant sunshine.
Kocaeli 3-Day Forecast
Kocaeli on the map
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