Tomorrow in Istanbul looks
sunny, with a high of 57°
and an overnight low of 51°.
Rain is unlikely (14% chance).
Winds top out near 9 mph,
and the UV index reaches 2 (low).
Istanbul averages 9.4 hours of sunshine per day, with July the brightest month. Temperatures peak in August and reach their annual low point in January.
Sunshine, rain and seasonal change
Rain and sunshine
About 753 mm (29.6 inches) falls across 106 wet days, with 9.4 hours of sunshine on an average day.
Seasonal change
August highs reach 84°F (29°C), while January lows fall to 39°F (4°C).
Typical day and night
Istanbul averages 66°F (19°C) by day and 54°F (12°C) at night across the year.
August, averaging 84°F (29°C) by day and 71°F (22°C) overnight. The hottest single day in our 2015-2024 record for this location reached 102°F (39°C).
When should I visit Istanbul?
April to July and September to October is the sweet spot for Istanbul - the dry season is running but the afternoons are still bearable. Expect 74°F (23°C) in the afternoon and around 8 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in April.
How often does it rain in Istanbul?
About 106 days bring measurable precipitation, totalling 29.6 inches (753 mm). That works out at roughly 7.1 mm on an average wet day.
When is Istanbul at its coldest?
January, with highs of 48°F (9°C) and lows near 39°F (4°C). The coldest day in the 2015-2024 record fell to 20°F (-7°C).
What is the rainiest month in Istanbul?
January, at 4.3 inches (109 mm) over about 13 days. August is the driest month, at 20 mm (0.8 in).
Is there snow in Istanbul?
Yes - about 6 days a year carry measurable snowfall, concentrated December through March.