Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
In April, the average high-temperature marginally rises from a cool 11.8°C (53.2°F) in March to a mild 15.3°C (59.5°F). In Istanbul, the average low-temperature is 9.9°C (49.8°F).Humidity
In Istanbul, Turkey, the average relative humidity in April is 70%.Rainfall
In Istanbul, during April, the rain falls for 12.6 days and regularly aggregates up to 29mm (1.14") of precipitation. In Istanbul, during the entire year, the rain falls for 130.7 days and collects up to 400mm (15.75") of precipitation.Snowfall
In Istanbul, snow does not fall in April through November.Sea temperature
In April, the average sea temperature in Istanbul is 10.3°C (50.5°F).Note: Swimming in 10.3°C (50.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
The average length of the day in April is 13h and 19min.On the first day of April, sunrise is at 06:47 and sunset at 19:28. On the last day of the month, sunrise is at 06:03 and sunset at 19:59 +03.
Sunshine
In Istanbul, the average sunshine in April is 8.2h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In April, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
FAQ
What is the temperature in April in Istanbul?
What is the average humidity in April in Istanbul?
How many days does it rain in April in Istanbul?
When it does not snow in Istanbul?
Does it snow in Istanbul in April?
What is the sea water temperature in April in Istanbul?
How many hours of daylight does Istanbul have in April?
When is the sunrise / sunset in April in Istanbul?
How many hours of sunshine does Istanbul have in April?
How high is the UV index in April in Istanbul?
Average temperature in April
Istanbul, Turkey
- Average high temperature in April: 15.3°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 April: 9.9°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 April
Istanbul, Turkey
- Average pressure in April: 1015.1mbar
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 April
Istanbul, Turkey
- Average wind speed in April: 15.2km/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 April
Istanbul, Turkey
- Average humidity in April: 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 April
Istanbul, Turkey
- Average rainfall in April: 29mm
The wettest month (with the highest rainfall) is December (52mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in April
Istanbul, Turkey
- Average rainfall days in April: 12.6 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 April
Istanbul, Turkey
- Average snowfall in April: 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 April
Istanbul, Turkey
- Average snowfall days in April: 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 April
Istanbul, Turkey
- Average sea temperature in April: 10.3°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 April /
Average sunshine in April
Istanbul, Turkey
- Average daylight in April: 13h and 19min
The month with the longest days is June (Average daylight: 15h and 5min).
The month with the shortest days is December (Average daylight: 9h and 17min).
- Average sunshine in April: 8h and 12min
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 April
Istanbul, Turkey
- Average sunshine days in April: 15.7 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 April
Istanbul, Turkey
- Average UV index in April: 4
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 April
Istanbul, Turkey
- Average cloud cover in April: 33
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 April
Istanbul, Turkey
- Average visibility in April: 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).
Weather forecast for your location
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