Istanbul
Turkey
Long term weather forecast
Long term weather forecast

May weather forecast and Climate
Istanbul, Turkey

  • Average high temperature in May: 20°C

Warmest month (with highest average high temperature) is August (26.7°C).
Month with lowest average high temperature is January (8.5°C).

  • Average low temperature in May: 12.1°C

Month with highest average low temperature is August (20°C).
Coldest month (with lowest average low temperature) is February (3.1°C).

  • Average rainfall in May: 34.1mm

Wettest month (with highest rainfall) is December (122.6mm).
Driest month (with lowest rainfall) is July (31.6mm).

  • Average rainfall days in May: 8.1 days

Month with highest number of rainy days is January (17.5 days).
Month with lowest number of rainy days is July (4.2 days).

  • Average snowfall days in May: 0 days

Month with highest number of snowfall days is February (4.9 days).
Months with lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

  • Average sea temperature in May: 15.5°C

Best month for swimming (with highest average sea temperature) is August (24.9°C).
Coldest month (with lowest average sea temperature) is February (7.7°C).

  • Average daylight in May: 14h

Months with longest days are June and July (Average daylight: 15).
Month with shortest days is December (Average daylight: 9).

  • Average sunshine in May: 8.1h

Month with most sunshine is July (Average sunshine: 10.4).
Month with least sunshine is December (Average sunshine: 2.2).

  • Average UV index in May: 7

Month with highest UV index is July (UV index 9).
Month with lowest UV index is December (UV index 1).

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