Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
Istanbul in May experiences an increase in the average high-temperature, moving from April's moderate 15.3°C (59.5°F) to an agreeable 20.9°C (69.6°F). Istanbul's nighttime temperature in May drops to an average of 15.1°C (59.2°F).Humidity
In Istanbul, the average relative humidity in May is 70%.Rainfall
In Istanbul, during May, the rain falls for 11.8 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, in Istanbul, there are 130.7 rainfall days, and 400mm (15.75") of precipitation is accumulated.Snowfall
In Istanbul, snow does not fall in April through November.Sea temperature
In Istanbul, in May, the average water temperature is 15.7°C (60.3°F).Note: Most individuals do not find swimming at 15.7°C (60.3°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.
Daylight
In May, the average length of the day in Istanbul, Turkey, is 14h and 29min.On the first day of the month, sunrise is at 06:01 and sunset at 20:00. On the last day of May, in Istanbul, sunrise is at 05:34 and sunset at 20:29 +03.
Sunshine
In Istanbul, the average sunshine in May is 10.5h.UV index
In May, the average daily maximum UV index in Istanbul is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Istanbul?
What is the average humidity in May in Istanbul?
How many days does it rain in May in Istanbul?
When it does not snow in Istanbul?
What is the sea temperature in May in Istanbul?
How many hours of daylight does Istanbul have in May?
When are sunrise and sunset in May in Istanbul?
How long on average sun shines in May in Istanbul?
What is the UV index intensity in May in Istanbul?
Average temperature in May
Istanbul, Turkey
- Average high temperature in May: 20.9°C
The warmest month (with the highest average high temperature) is July (27.9°C).
The month with the lowest average high temperature is January (8.5°C).
- Average low temperature in May: 15.1°C
The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in May
Istanbul, Turkey
- Average pressure in May: 1013.4mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is July (1011.7mbar).
Average wind speed in May
Istanbul, Turkey
- Average wind speed in May: 14km/h
The windiest month (with the highest average wind speed) is August (20.5km/h).
The calmest month (with the lowest average wind speed) is May (14km/h).
Average humidity in May
Istanbul, Turkey
- Average humidity in May: 70%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are June and July (67%).
Average rainfall in May
Istanbul, Turkey
- Average rainfall in May: 38mm
The wettest month (with the highest rainfall) is December (52mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in May
Istanbul, Turkey
- Average rainfall days in May: 11.8 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in May
Istanbul, Turkey
- Average snowfall in May: 0mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Istanbul, Turkey
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in May
Istanbul, Turkey
- Average sea temperature in May: 15.7°C
The best month for swimming (with the highest average sea temperature) is August (24.9°C).
The coldest month (with the lowest average sea temperature) is February (7.8°C).
Average daylight in May /
Average sunshine in May
Istanbul, Turkey
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 10h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in May
Istanbul, Turkey
- Average sunshine days in May: 17 days
The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is February (12.6 days).
Average UV index in May
Istanbul, Turkey
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Istanbul, Turkey
- Average cloud cover in May: 27
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Istanbul, Turkey
- Average visibility in May: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
