Climate of Istanbul, Türkiye
Area-weighted average across Istanbul. For where people actually live and travel, see the cities below.
Istanbul, a subdivision of Türkiye, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 5.3°C / 41.5°F in January to 22.5°C / 72.5°F in July, with rainfall from 26 mm / 1 in to 112 mm / 4.4 in depending on the season (725 mm / 28.5 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 5.3°C41.5°F | 94 mm3.7″ | — |
| February | 5.5°C41.9°F | 64 mm2.5″ | — |
| March | 7.1°C44.8°F | 63 mm2.5″ | — |
| April | 11.5°C52.7°F | 48 mm1.9″ | — |
| May | 15.8°C60.4°F | 39 mm1.5″ | Sunny & Mild |
| June | 20.2°C68.4°F | 34 mm1.3″ | Sunny & Warm, Sunny & Mild |
| July | 22.5°C72.5°F | 26 mm1″ | Sunny & Warm |
| August | 22.5°C72.5°F | 35 mm1.4″ | Sunny & Warm |
| September | 19.4°C66.9°F | 45 mm1.8″ | Sunny & Mild |
| October | 15.2°C59.4°F | 76 mm3″ | — |
| November | 10.9°C51.6°F | 89 mm3.5″ | — |
| December | 7.4°C45.3°F | 112 mm4.4″ | — |
Frequently asked questions
What is the best time to visit Istanbul?
The best months to visit Istanbul, Türkiye for sunny, dry weather are May, June, July, August, September. The warmest month is July at an area-wide average of 22.5°C / 72.5°F, and the driest is July with about 26 mm / 1 in of rainfall.
What is the climate of Istanbul?
Istanbul, Türkiye has area-weighted monthly average temperatures ranging from 5.3°C / 41.5°F in January to 22.5°C / 72.5°F in July. Annual rainfall averages about 725 mm / 28.5 in, with the wettest month being December (112 mm / 4.4 in) and the driest July (26 mm / 1 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Istanbul?
The hottest month in Istanbul is July, with an area-wide average temperature of 22.5°C / 72.5°F.
What is the coldest month in Istanbul?
The coldest month in Istanbul is January, with an area-wide average temperature of 5.3°C / 41.5°F.
When does it rain most in Istanbul?
The wettest month in Istanbul is December, averaging about 112 mm / 4.4 in of rainfall. The driest is July with about 26 mm / 1 in.