August · Turkey
Best time to visit Istanbul in August Weather, crowds & prices
Weather in Istanbul in August
Average temperature 25°C, 20 mm of rain, about 31 days with 6+ hours of sunshine and 69% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
8.4/10
Ranked #6 of 12 months
- Avg temp
- 25°C
- Rainfall
- 20 mm
- Humidity
- 69%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$ · Moderate Cost ($$)
August in Istanbul scores 8.4/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 25°C, 20 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Bosphorus ferries and storied quarters shine brightest in mild April through June.
August in Istanbul: strong conditions, 6th of 12
August averages 25°C (78°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Expect 20 mm of rain — occasional showers rather than washed-out days — alongside about 31 days with 6+ hours of sunshine and 13.8 daylight hours.
It scores 8.4/10 here, 6th of 12 months, against 9.4/10 in the destination's best month.
Pack light clothing, a hat and real sun protection.
Figure on mid-season pricing, with this is one of the busiest months here.
Frequently asked
- What is the weather like in Istanbul in August?
- In August, Istanbul averages 25°C, 20 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 8.4/10.
- Is August a good time to visit Istanbul?
- August earns a 8.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Istanbul in August?
- Expect about 20 mm of rain in August. Average humidity is 69% and there are about 31 days with 6+ hours of sunshine.
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