Istanbul weather in June
Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Excellent
Best time to visit: May – September
What is the weather like in Istanbul in June?
In June, Istanbul is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 21.0 °C – refreshing for a swim. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 5 days, adding up to 29 mm. All in all, June is an excellent month for a holiday in Istanbul.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 15 h 6 min05:31 – 20:37
- UV index
- 10 · very highclear sky, noon (estimate)
- Muggy days
- 7 daysdew point 18 °C or more
- Wind
- 19 km/haverage daily peak
- Cloud cover
- 30 %on average
- Hot days
- 1 day30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+3Europe/Istanbul
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %91 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in June
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
Istanbul in June: quick answers
Is Istanbul hot in June?
Warm rather than hot: in June, daytime highs in Istanbul average 25 °C and nights cool to about 19 °C. On about 1 days the thermometer climbs to 30 °C or more.
Can you swim in Istanbul in June?
Yes. In June the sea averages 21.0 °C – refreshing for a swim.
Does it rain much in Istanbul in June?
Rain falls on about 5 days, adding up to 29 mm.
Istanbul month by month
The whole year in IstanbulAll destinations: Turkey
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)