April weather forecastKarstula, Finland
April
Weather in April
April is an icy spring month in Karstula, Finland, with an average temperature varying between 5.7°C (42.3°F) and -1.2°C (29.8°F).Temperature
April's onset is marked by a temperature increase, moving from a subzero cold -0.8°C (30.6°F) in March to a wintry 5.7°C (42.3°F). April brings an average low-temperature of -1.2°C (29.8°F) to Karstula.Humidity
In April, the average relative humidity is 84%.Rainfall
In Karstula, in April, during 10.8 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 126.7 rainfall days, and 417mm (16.42") of precipitation is accumulated.Snowfall
Months with snowfall in Karstula are January through May, October through December. In Karstula, Finland, in April, during 9.3 snowfall days, 94mm (3.7") of snow is typically accumulated. In Karstula, during the entire year, snow falls for 103.2 days and aggregates up to 1012mm (39.84") of snow.Daylight
The average length of the day in April is 14h and 58min.On the first day of April in Karstula, sunrise is at 06:39 and sunset at 20:10. On the last day of the month, sunrise is at 05:02 and sunset at 21:33 EEST.
Sunshine
The average sunshine in April in Karstula is 5.4h.UV index
In Karstula, the average daily maximum UV index in April is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 2 in April, converts into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Karstula, Finland
- Average high temperature in April: 5.7°C
The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-5.2°C).
- Average low temperature in April: -1.2°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is January (-9.6°C).
Average pressure in April
Karstula, Finland
- Average pressure in April: 1012.6mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1007mbar).
Average wind speed in April
Karstula, Finland
- Average wind speed in April: 10.7km/h
The windiest month (with the highest average wind speed) is December (12.5km/h).
The calmest month (with the lowest average wind speed) is July (9.8km/h).
Average humidity in April
Karstula, Finland
- Average humidity in April: 84%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (68%).
Average rainfall in April
Karstula, Finland
- Average rainfall in April: 27mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is March (25mm).
Average rainfall days in April
Karstula, Finland
- Average rainfall days in April: 10.8 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in April
Karstula, Finland
- Average snowfall in April: 94mm
The month with the highest snowfall is January (227mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Karstula, Finland
- Average snowfall days in April: 9.3 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Karstula, Finland
- Average daylight in April: 15h and 0min
The month with the longest days is June (Average daylight: 20h and 0min).
The month with the shortest days is December (Average daylight: 5h and 0min).
- Average sunshine in April: 5h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days in April
Karstula, Finland
- Average sunshine days in April: 11.6 days
The month with the most sunshine days is May (16.1 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in April
Karstula, Finland
- Average UV index in April: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in April
Karstula, Finland
- Average cloud cover in April: 66
The month with the most cloud cover is January (Cloud cover 83).
The months with the least cloud cover are June and July (Cloud cover 48).
Average visibility in April
Karstula, Finland
- Average visibility in April: 7km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (5km).
