Istanbul in Summer — Weather & What to Expect
Summer in Istanbul (June, July, August) averages daytime highs of 28.2°C and lows of 20.3°C, with around 94.6mm of rain across the season (14 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in Istanbul covers June, July, August.
Summer in Istanbul month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 25.1°C | 17.8°C | 58.4mm | 9 | 10/10 |
| July | 29.4°C | 21.1°C | 20.1mm | 2 | 10/10 |
| August | 30.0°C | 22.1°C | 16.1mm | 3 | 10/10 |
What to pack for Istanbul in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
Frequently Asked Questions
Is summer a good time to visit Istanbul?
Summer in Istanbul rates around 10/10 — excellent time to visit. Average highs are 28.2°C with 94.6mm of rain across the season.
How hot is Istanbul in summer?
Daytime highs average 28.2°C (82.8°F) across June, July, August, with nights around 20.3°C.
What months are summer in Istanbul?
Istanbul is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit Istanbul · Istanbul annual climate · Istanbul in spring · Istanbul in autumn · Istanbul in winter
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Once you know what summer in Istanbul looks like, find out exactly what to pack for Istanbul at 247PackingList. For currency, language and country facts, see the Turkey guide at 247CountryInfo.
Summer in Istanbul — what to pack
Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →Check clothing sizes in Turkey at 247Sizing before you shop.
More summer travel essentials
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.