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Climate · Istanbul

Istanbul in August

Hot and mostly dry, as the days shorten.

Typical weather, averaged over 30 years

August in Istanbul is hot: highs near 86°F, lows near 71°F. Rain falls on about one day a week, and the days shorten by 1 hour 10 minutes from the first week to the last.August in Istanbul is hot: highs near 30°C, lows near 22°C. Rain falls on about one day a week, and the days shorten by 1 hour 10 minutes from the first week to the last.

High
86°F30°Caverage
Low
71°F22°Caverage
Wet days
1a week · 14% of days
Daylight
13h 45mon average

Is August a good time to visit Istanbul?

A good month, just outside Istanbul's best months, which run in two parts: May to June, or September to October.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How August sits in the year

week by week

Temperature

Highs near 86°F in August, against 51°F to 86°F through the year.Highs near 30°C in August, against 11°C to 30°C through the year.

Chance of a wet day

14% of days in August, against 14% to 46% through the year.

Cloud cover

11% cover in August, against 10% to 62% through the year.

Daylight

13h 45m in August, against 9h 16m to 15h 04m through the year.

Week by week, lightly smoothed, with August shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. July84°29°low 69°low 21°1 wet day a weekRain on about one day a week.
  2. August86°30°low 71°low 22°1 wet day a weekRain on about one day a week.
  3. September79°26°low 65°low 18°2 wet days a weekRain on about two days a week.

Where Istanbul sits, in August

Europe/Istanbul
this place
typical high in August 40°F4°C95°F35°C
Sunrise, mid-August
6:13 AMsets 8:05 PM
Above the sea
40 mlow-lying
Latitude
41.0°Nnorthern hemisphere
Nearest of ours
Ankara350 km east

The land around Istanbul, shaded by its typical high in August, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Turkey in August

high · low · wet days
See August on the planning mapThe whole year in Istanbul

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Istanbul. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.