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In Istanbul in May, the average air temperature ranges from 21.3 °C (70.3 °F) during the day to 12.3 °C (54.1 °F) at night. There are 6 days of rain on average, where the rainfall is 34 mm (1.33 in).
In May in Istanbul, there are ideal conditions for a vacation. There are only 6 days of rain in the whole month, so you can leave your umbrella at home. There are some people, who may feel a slight chill at 21.3 °C (70.3 °F), but others will feel perfectly fine. The temperature of 12.3 °C (54.1 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
The sea will reach 15.1 °C (59.2 °F) in Istanbul in May. This is a sea temperature for resilient people only, most people won't enjoy swimming in such cold water or will have to use a wetsuit for water activities.
The average daily temperature in Istanbul in May is 21.3 °C (70.3 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.
There are 6 days, which are rainy in May in Istanbul, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.4 days of the week, or in general - 20 % days.
The average night temperature in Istanbul in May is 12.3 °C (54.1 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold.
There is an average length of sunshine of 10 hours per day in May in Istanbul.
In Istanbul in May, expect humidity around 75 %.
Yes, there is a dry season in Istanbul in May with just 6 days during the month being rainy.
No, May in Istanbul is not a rainier month than June.
Over the course of May in Istanbul, the temperatures are rising from 19.0 °C (66.1 °F) at the beginning of the month to 23.7 °C (74.6 °F) at the end of the month.
An average wind scale that can be expected in May in Istanbul is 2.5. It is rather a milder or unnoticeable wind, therefore it will not bother you during your holiday.
The sea temperature during May in Istanbul has an increasing tendency from 12.7 °C (54.9 °F) at the beginning of the month to 17.8 °C (64.0 °F) at the end of the month.
The length of daylight in May in Istanbul is 14 hours.