Climate almanac
Istanbul
Istanbul, Turkey · 41.01°, 28.95°
What is the climate like in Istanbul?
The best time to visit Istanbul is typically May – October, with trip comfort peaking in August (8.7/10). Istanbul is warmest in August, when daily highs average 82°F (28°C), and coolest in January, when lows fall to about 42°F (6°C). The wettest month is typically January and the driest is August; the year sees roughly 28 in (721 mm) of precipitation.
- Best time to visitMay – October — comfort peaks in August (8.7/10)
- Warmest monthAugust — average high 82°F (28°C)
- Coolest monthJanuary — average low 42°F (6°C)
- Wettest monthJanuary (4.2 in (108 mm))
- Driest monthAugust (0.7 in (18 mm))
- Annual precipitation28 in (721 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromIstanbul Bolge (kartal), 21 km away (2014-2025)