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 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
With April's advent, Karlby sees an average high-temperature of a still cold 3.9°C (39°F), subtly shifted from March's 1.3°C (34.3°F). Night temperatures during April in Karlby experience a slight downturn, averaging a still cold 1.9°C (35.4°F).Humidity
The average relative humidity in April is 82%.Rainfall
April is the month with the least rainfall in Karlby. Rain falls for 8.8 days and accumulates 12mm (0.47") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Karlby, in April, snow falls for 2 days, with typically accumulated 8mm (0.31") of snow. In Karlby, during the entire year, snow falls for 38.5 days and aggregates up to 160mm (6.3") of snow.Daylight
In Karlby, Finland, the average length of the day in April is 14h and 37min.On the first day of April in Karlby, sunrise is at 06:59 and sunset at 20:20. On the last day of the month, sunrise is at 05:35 and sunset at 21:31 EEST.
Sunshine
The average sunshine in April is 8.6h.UV index
In April, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 2 in April suggests the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
How cold is April in Karlby?
What is the average humidity in April in Karlby?
What is the driest month in Karlby?
How many days does it rain in April in Karlby?
How much does it snow in Karlby in April?
What is the average length of the day in April in Karlby?
When is the sunrise / sunset in April in Karlby?
How long on average sun shines in April in Karlby?
What is the UV index reading in April in Karlby?
Average temperature in April
Karlby, Finland
- Average high temperature in April: 3.9°C
The warmest month (with the highest average high temperature) is August (18.1°C).
The month with the lowest average high temperature is February (0.3°C).
- Average low temperature in April: 1.9°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (-1.7°C).
Average pressure in April
Karlby, Finland
- Average pressure in April: 1014mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in April
Karlby, Finland
- Average wind speed in April: 23.7km/h
The windiest month (with the highest average wind speed) is December (34.1km/h).
The calmest month (with the lowest average wind speed) is July (21.2km/h).
Average humidity in April
Karlby, Finland
- Average humidity in April: 82%
The months with the highest relative humidity are February and March (84%).
The months with the lowest relative humidity are August, September and October (78%).
Average rainfall in April
Karlby, Finland
- Average rainfall in April: 12mm
The wettest month (with the highest rainfall) is September (38mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in April
Karlby, Finland
- Average rainfall days in April: 8.8 days
The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in April
Karlby, Finland
- Average snowfall in April: 8mm
The month with the highest snowfall is January (41mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Karlby, Finland
- Average snowfall days in April: 2 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Karlby, Finland
- Average daylight in April: 14h and 4min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in April: 8h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in April
Karlby, Finland
- Average sunshine days in April: 17.8 days
The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is December (8.9 days).
Average UV index in April
Karlby, 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 and December (UV index 1).
Average cloud cover in April
Karlby, Finland
- Average cloud cover in April: 43
The months with the most cloud cover are January and December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in April
Karlby, Finland
- Average visibility in April: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
Karlby, Finland
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