Ideal weather days in Istanbul
The best time to visit Istanbul for warm, dry weather is October, with about 24 such days a month.
How many days here suit you?
Set your ideal day. Each day measured at Istanbul's weather station in 2023–2025 is checked against it.
They're most common in October.
This station doesn't record cloud cover, so the sky setting is left out here.
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Your ideal days in Istanbul, month by month
Why the other days don't count
- Too cold150
- Too windy103
- Too wet64
- Too hot14
A day can fail more than one test.
Warm and dry, beach and mild days
With the Warm & dry preset (a high of 18–33 °C, no more than 1 mm of rain, wind under 20 km/h), Istanbul averaged 128 days a year in 2023–2025. Every number here is counted from real measured days in Türkiye, not from climate averages.
Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in June and July (up to 21 a month, 75 a year). Mild, still days (16–26 °C, light wind) are most common in April, May and October (up to 9 a month, 42 a year).
What spoils the other days
Most of the days that don't count are too cold (a high under 18 °C): 150 a year, mostly in December to March. Another 103 are windy (mean wind over 20 km/h), mostly in June, July and August. A day can fail more than one test.
Istanbul weather, month by month
| Month | Typical high | Rain days | Windy days | Clear days | Warm & dry days |
|---|---|---|---|---|---|
| January | 12 °C 54 °F | 8 | 9 | 7 | 1 of 31 |
| February | 10 °C 50 °F | 9 | 7 | 7 | 1 of 28 |
| March | 13 °C 55 °F | 11 | 5 | 6 | 5 of 31 |
| April | 17 °C 63 °F | 7 | 6 | 8 | 11 of 30 |
| May | 21 °C 70 °F | 6 | 7 | 9 | 18 of 31 |
| June | 29 °C 84 °F | 2 | 11 | 18 | 17 of 30 |
| July | 32 °C 90 °F | 1 | 14 | 20 | 12 of 31 |
| August | 31 °C 88 °F | 1 | 17 | 15 | 12 of 31 |
| September | 28 °C 82 °F | 3 | 9 | 8 | 19 of 30 |
| October | 22 °C 72 °F | 3 | 4 | 14 | 24 of 31 |
| November | 17 °C 63 °F | 10 | 10 | 6 | 8 of 30 |
| December | 13 °C 55 °F | 14 | 7 | 10 | 1 of 31 |
| Year | 75 | 104 | 128 | 128 of 365 |
Typical high is the median daily maximum. A rain day has 1 mm or more; a windy day a mean wind above 20 km/h; a clear day a daytime cloud cover of 2/8 or less on average (9:00–17:00). Days are averaged over 2023–2025 and scaled to the length of each month.
Year by year
- 2023 130 warm, dry days
- 2024 133 warm, dry days
- 2025 incomplete (8 of 12 months)
Questions
When is the best time to visit Istanbul for good weather?
The best time to visit Istanbul for warm, dry weather is October, with about 24 such days a month. Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in June and July (up to 21 a month, 75 a year). Counted from measured days at Ataturk station, 2023–2025.
Does it rain a lot in Istanbul?
On average 75 days a year had 1 mm of rain or more in 2023–2025. The wettest month was December (14 rain days), the driest July (1).
How many sunny days does Istanbul get a year?
About 128 days a year had mostly clear skies (daytime cloud cover of 2/8 or less on average, 9:00–17:00), most of them in July (20).
How warm does Istanbul get?
The median daily high ranged from 10 °C (50 °F) in February to 32 °C (90 °F) in July.
Nearby
- Izmir330 km158 days
- Ankara350 km144 days
- Bucharest450 km, Romania139 days
- Sofia510 km, Bulgaria144 days
- Heraklion710 km, Greece207 days
- Nicosia750 km, Cyprus189 days
Where is the best climate in Türkiye?
Open Istanbul on the map Set your own temperature, rain and wind limits.
Source: Ataturk weather station (17060099999), 14 km from the centre of Istanbul, 50 m above sea level. Daily records from NOAA's Global Surface Summary of the Day, 2023–2025; 86% of days have a complete record. A single station may not represent every part of a city, and three years is a short record.