Istanbul weather in July
In July, Istanbul has an average high of 29 °C84 °F and an average low of 22 °C71 °F, with about 20 mm0.8 in of precipitation. It is the 2nd warmest month of the year and the driest.
How July compares with other months
Compared with June, July is 2.8 °C5.1 °F warmer on average and drier by 16 mm0.6 in. Compared with August, July is about the same temperature. Daylight lasts about 14.8 hours around the middle of the month. Average relative humidity is 66% and the average cloud amount 28%.
Is July a good time to visit Istanbul?
Yes — July is one of the most comfortable months to visit Istanbul by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in July
For Istanbul in July, pack light summer clothes such as T-shirts, shorts or light dresses.
July in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Istanbul | 2984 | 2271 | 200.8 |
| Üsküdar | 2984 | 2271 | 200.8 |
| Ümraniye | 2882 | 2068 | 241.0 |
| Küçükçekmece | 2984 | 2171 | 200.8 |
| Maltepe | 2882 | 2068 | 241.0 |
| İzmit | 3086 | 1966 | 341.3 |
| Nilüfer | 3392 | 2068 | 140.6 |
| Bursa | 3391 | 1967 | 140.6 |
| Çorlu | 3187 | 1967 | 230.9 |
Nearby places that are more than 1 °C1.8 °F warmer in July: Nilüfer; cooler: Ümraniye and Maltepe.
Other months in Istanbul
- January8 °C47 °F / 4 °C38 °F
- February9 °C49 °F / 4 °C39 °F
- March12 °C53 °F / 6 °C42 °F
- April16 °C60 °F / 9 °C48 °F
- May21 °C70 °F / 14 °C57 °F
- June26 °C79 °F / 19 °C66 °F
- July29 °C84 °F / 22 °C71 °F
- August29 °C84 °F / 22 °C72 °F
- September25 °C77 °F / 19 °C66 °F
- October20 °C68 °F / 14 °C58 °F
- November15 °C59 °F / 10 °C50 °F
- December10 °C50 °F / 6 °C42 °F
Frequently asked questions
How warm is Istanbul in July?
In July the average high in Istanbul is 29 °C (84 °F) and the average low is 22 °C (71 °F).
Does it rain a lot in Istanbul in July?
On average about 20 mm (0.8 in) of precipitation falls in July; it ranks 12th of the 12 months.
Is July the warmest month in Istanbul?
No. The warmest month in Istanbul is August, with an average high of 29 °C (84 °F). The coldest month is January, with an average low of 4 °C (38 °F).
How long is the day in Istanbul in July?
In the middle of July the day in Istanbul lasts about 14.8 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Istanbul in July?
The average relative humidity in July is about 66%. This is a long-term average for the whole day.
How cloudy is Istanbul in July?
On average about 28% of the sky is covered by cloud in July. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.