Istanbul Weather in June
In June, Istanbul averages a high of 26°C (80°F) and a low of 17°C (63°F), from 41 years of daily records (1971–2025).
26°C
Average high
80°F
17°C
Average low
63°F
39°C
Record high
103°F · June 28, 1982
9°C
Record low
48°F · June 3, 1990
What June Is Like in Istanbul
- June 2025 was the 2nd warmest June in 41 years of records, 2.3°C (4.1°F) above the long-run average.
- June in Istanbul has become 1.8°C (3.3°F) warmer on average: the 2011–2025 average against 1970–1989.
- 6 of the 10 warmest Junes on record in Istanbul have come since 2011.
- The June heat record, 39°C (103°F) on June 28, 1982, has stood for 43 years.
At least 1 mm of rain falls on 45% of June days.
Warmest: 2025 (29.7°C)Latest: 2025 (29.7°C)10-year averageLong-run average (26.4°C)
Look Up a Day in June
See the weather in Istanbul on any June date, year by year.
Source: NOAA GHCN-Daily, Istanbul (1971–2007); Istanbul Bolge (Kartal) (2014–2025). Averages cover 1971–2025. How we compute this