Climate normals · 1970–2000
Istanbul Climate
Istanbul is a city in Turkey (34) with a population of about 15,701,602. Its average annual temperature is 14.5°C (58°F), with roughly 716 mm of rain per year.
14.5°C
Avg Temp
716
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
Istanbul Climate
Istanbul has an average annual temperature of 14.5°C (58°F) and receives about 716 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
14.5°C
Avg Temp
716
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 6° / 43° | 94 mm |
| February | 6° / 43° | 65 mm |
| March | 8° / 46° | 65 mm |
| April | 13° / 55° | 47 mm |
| May | 17° / 62° | 37 mm |
| June | 21° / 71° | 31 mm |
| July | 24° / 75° | 25 mm |
| August | 24° / 74° | 34 mm |
| September | 20° / 68° | 42 mm |
| October | 16° / 60° | 75 mm |
| November | 11° / 53° | 89 mm |
| December | 8° / 47° | 112 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Istanbul
The most comfortable months to visit Istanbul are typically June, September and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near 3°C low). December is usually the wettest month.
Where to stay near Istanbul
Planning a trip to Istanbul? Compare hotels and short-term rentals — live availability and prices.
Top-rated places to stay near Istanbul
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Istanbul?
Get climate tips and the best lodging deals for Istanbul by email. No spam, unsubscribe anytime.
Other cities in Turkey
Frequently Asked Questions
The most comfortable months to visit Istanbul are typically June, September and July, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
Istanbul, Turkey has an average annual temperature of 14.5°C and about 716 mm of precipitation per year. The warmest month is July and the coldest is January.
In July, the hottest month, daily highs in Istanbul average about 29°C (83°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.