Weather in Istanbul in July 2025
- July is usually the driest month of the year in Istanbul
Average weather
Average temperature in Istanbul in July
Going from a maximum of +36°C during the day to a minimum of +19°C during the night, the temperature in July averages around +29°C.
The average maximum temperature goes down 6% by the end of the month, compared with the beginning of the month, from +28°C to +27°C.
Is Istanbul warm or cold in July?
Istanbul is typically warm in July.
Maximum temperatures go up compared to the previous month from +25°C to +27°C. The minimum temperature also goes up from +19°C to +21°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is one of the warmest months in Istanbul, here is the comparison with other months:
Water temperature in Istanbul in July
Water in Istanbul in July is Comfortable. It varies from +22°C to +28°C, with an average of +25°C. This is almost similar to the air temperature, which averages +27°C.
The water temperature in July is one of the warmest of the entire year:
Can you swim in Istanbul in July?
Climate in Istanbul in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +25°C | +27°C | +28°C | ||||
| Min. temperature | ||||||
| +11°C | +15°C | +16°C | ||||
| Max. temperature | ||||||
| +37°C | +36°C | +35°C | ||||
| Rainfall | ||||||
| 24 mm | 18 mm | 14 mm | ||||
| Wind | ||||||
| 3 m/s | 4 m/s | 4 m/s | ||||
| Avg. water temperature | ||||||
| +21°C | +25°C | +25°C | ||||
| Humidity | ||||||
| 66% | 64% | 66% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 18 | 22 | 22 | ||||
| Cloudy days | ||||||
| 2 | 2 | 3 | ||||
| Rainy days | ||||||
| 6 | 5 | 5 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as great as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +25°C to +27°C during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 24 mm to 18 mm. It feels drier, as humidity decreases from 66% to 64%. Winds are stronger in comparison to June, going up from 3 m/s to 4 m/s on average. The good news is there are likely to be more sunny days in July, from 18 to 22.
August brings much the same weather, it remains great.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Istanbul is gradually increasing during July, going from 2 m/s to 5 m/s over the course of the month.
Rain
How was the weather last July in Istanbul?
Climate Change over Years
The climate in Istanbul in July has not changed much over the last 43 years.
The average temperature was the lowest in 1997 (+16°C) and the highest in 2019 (+20°C). The driest year was 1984 with only 361 mm of rainfall, and the wettest year was 2010 with 859 mm.
FAQ
Is July a good time to visit Istanbul?
Can you sunbathe in Istanbul in July?
Can you swim in Istanbul in July?
Is Istanbul rainy in July?
Is it sunny in Istanbul in July?
Other cities in Turkey
Monthly weather in Istanbul
Source of the data
For this page, we’ve looked at the typical weather in Istanbul, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.