Istanbul
9 to 28°C
temperature
2979 hours
sunshine per day
361 mm
rain
229 days
dry
128 days
rain
8 days
snow

Climate of Istanbul

Istanbul has a mediterranean climate. The summers are hot and dry, and the temperature is mild in the winter. The average annual temperature for Istanbul is 35° degrees and there is about 143 inch of rain in a year. It is dry for 202 days a year with an average humidity of 72% and an UV-index of 4.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 9°C and 28°C
  • Night:the average nighttime temperature is between 5°C and 23°C
  • Sea temperature: the sea temperature is between 9°C and 29°C
  • Rain: it rains 128 days and there is a total of approximately 361 mm rainfall
  • Snow: it snows an average of 8 days per year
  • Sun hours: throughout the year there are 2979 sun hours
Maximum temperature: between 9°C and 28°C
Warmest month: 28°C in July
Coldest month: 9°C in January
Night temperature: between 5°C and 23°C
Sea temperature: between 9°C and 29°C
Dry days: 229 days
Days with rain: 128 days
Days with snow: 8 days
Total rain sum: 361 mm
Hours of sunshine: 2979 hours

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Istanbul.

Precipitation graph

This graph shows the average amount of rainfall per month for Istanbul.

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Climate table of Istanbul

In this climate table you can see at a glance what the average weather per month is for Istanbul. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Istanbul might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°F) 47 49 53 60 69 77 82 82 76 66 59 51
Night temp. (°F) 42 43 45 50 59 67 72 74 69 60 54 46
Water temp. (°F) 49 50 57 61 77 78 78 84 80 68 59 53
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (inch) 17 14 14 9 11 11 4 4 11 15 13 20
Days with rain 12 12 14 13 11 8 7 4 10 13 11 13
Days with snow 4 2 1 - - - - - - - - 1
Dry days 15 14 16 17 20 22 24 27 20 18 19 17
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 5 6 7 8 11 12 12 10 9 8 6 5
Wind force (Bft) 3 3 3 3 3 3 3 4 3 3 3 3
UV-index 2 2 4 4 5 6 7 6 5 4 3 2

Best time to visit Istanbul

The best time to visit Istanbul in Turkey is from May through October. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Istanbul is 82°F in July and the lowest is 47°F in January. The highest water temperature is 84°F and at its coldest the water is 49°F.

Climate of Istanbul by month

What is the average climate in a given month for Istanbul? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

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