Weather in Istanbul in August
August in Istanbul is a hot month. Plan the serious walking for morning. The rest of the day wants shade and a slower pace.
In Turkey, this is how Istanbul actually wears August, not how a country centroid would. August is the peak of the warm side of the year in Istanbul. If you wanted the gentlest heat, this is not that month.
- Average temp
- 25°C
21–30°C
- Rainfall
- 29 mm
Not much rain
- Sunshine
- 9.5 h
hours per day
What to expect
Daytime
Hot days in Istanbul. Ruins, markets and hills are a morning job. Midday sightseeing is how people remember August for the wrong reason.
Nights stay warm. Air-con, if you can get it, is part of the brief. A jumper for August in Istanbul is almost always a waste of bag space.
Rain
August is on the drier side of the year in Istanbul. Showers are possible. They do not define the month.
A shell that lives in the bag is enough. This is not December, and it should not be packed as if it were.
Evening
Evenings stay warm.
What to pack
Sun protection
Where to stay in Istanbul
Dates are a starting point for August.
Travel guides for Istanbul
What to read before you book.
Average weather in Istanbul
TemperatureRainfall
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FAQs about Istanbul
Climate averages for Istanbul, 1991–2020.
The best time to visit Istanbul is between May and October, the most comfortable stretch of the year on these averages.
August is the hottest month, with an average around 25°C.
December is the wettest month, with about 101 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
