Istanbul weather in August 2025

The weather in Istanbul in August is very hot. The average temperatures are between 23°C and 28°C, drinking water regularly is advisable.

You can expect a few rainy days in Istanbul during August, but usually the weather is comfortable in August.

Our weather forecast can give you a great sense of what weather to expect in Istanbul in August 2025.

If you’re planning to visit Istanbul in the near future, we highly recommend that you review the 14 day weather forecast for Istanbul before you arrive.

Temperatures

28° / 23°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

11.8

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
					1 30° /24°	2 30° /24°
3 32° /24°	4 30° /24°	5 30° /24°	6 30° /24°	7 28° /23°	8 30° /23°	9 29° /24°
10 29° /23°	11 29° /23°	12 29° /23°	13 29° /24°	14 29° /24°	15 28° /23°	16 28° /23°
17 28° /23°	18 28° /22°	19 29° /23°	20 29° /23°	21 29° /23°	22 30° /23°	23 30° /23°
24 29° /23°	25 29° /23°	26 30° /23°	27 30° /23°	28 30° /23°	29 30° /24°	30 30° /23°
31 29° /23°

Explore the weather in Istanbul in other months

Istanbul annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	9° / 5°	8	17	5	103 mm	Awful	Istanbul in January
February	10° / 6°	7	19	3	90 mm	Awful	Istanbul in February
March	12° / 7°	7	23	2	84 mm	Awful	Istanbul in March
April	16° / 10°	5	25	0	67 mm	Good	Istanbul in April
May	22° / 15°	5	26	0	62 mm	Good	Istanbul in May
June	26° / 20°	4	26	0	64 mm	Perfect	Istanbul in June
July	28° / 23°	1	30	0	28 mm	Perfect	Istanbul in July
August	28° / 23°	1	30	0	19 mm	Perfect	Istanbul in August
September	25° / 21°	3	27	0	63 mm	Perfect	Istanbul in September
October	20° / 16°	4	27	0	99 mm	Good	Istanbul in October
November	16° / 13°	4	26	0	65 mm	Good	Istanbul in November
December	11° / 8°	7	22	1	100 mm	Bad	Istanbul in December