Climate at a glance · Istanbul
Annual mean60°day and night
Precipitation29.76 ina year
Warmest monthJulyavg high 86°
Coldest monthFebruaryavg low 39°
Average temperature by month
High · lowJanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation by month
29.76 in a yearJanFebMarAprMayJunJulAugSepOctNovDec
Monthly averages
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 50° | 50° | 54° | 63° | 70° | 81° | 86° | 86° | 77° | 68° | 63° | 54° |
| Avg low | 41° | 39° | 41° | 48° | 54° | 64° | 70° | 72° | 64° | 55° | 50° | 45° |
| Precip, in | 3.58 | 2.99 | 2.99 | 2.76 | 2.24 | 1.65 | 1.30 | 0.79 | 1.89 | 2.09 | 3.94 | 3.54 |
| Wet days | 12 | 10 | 13 | 10 | 9 | 6 | 4 | 4 | 7 | 7 | 9 | 13 |
| Sunshine | 5.8 h | 6.9 h | 7.5 h | 9.3 h | 11.5 h | 13 h | 13.6 h | 12.6 h | 10.8 h | 8.5 h | 6.9 h | 5.5 h |
| Humidity | 79% | 79% | 77% | 76% | 73% | 72% | 67% | 69% | 71% | 77% | 77% | 81% |
| Sea temperature | 50° | 47° | 49° | 51° | 59° | 71° | 77° | 76° | 74° | 67° | 63° | 57° |
| Daylight | 9 h 37 | 10 h 39 | 11 h 58 | 13 h 20 | 14 h 29 | 15 h 04 | 14 h 47 | 13 h 46 | 12 h 28 | 11 h 06 | 9 h 54 | 9 h 17 |
| UV index (clear sky) | 3 | 4 | 6 | 9 | 10 | 11 | 11 | 10 | 7 | 5 | 3 | 2 |
5-year averages (2021–2025) · Open-Meteo historical weather (ERA5)
41.0082°N, 28.9784°E