September in Kocaeli sees daytime temperatures around 26°C (79°F) and lows of 16°C (61°F) at night. With around 66 mm (2.6 in) of rainfall expected, it's worth packing a rain jacket.
If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
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Pick a month to see the average temperature, rainfall and sunshine in Kocaeli - and find the best time to visit.
Find out more about the weather in Turkey and which places have the best travel conditions in this month. See all of Turkey in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm but pleasant conditions in Kocaeli in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Kocaeli climate overview or explore weather in Turkey.
Where to go in September - average daytime high across popular destinations.
Antalya
31°C (88°F) Side
30°C (86°F) Fethiye30°C (86°F) Oludeniz30°C (86°F) Alanya28°C (82°F) Alacati
26°C (79°F) Istanbul25°C (77°F) Trabzon
23°C (73°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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