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
April
Weather in April
Temperature
Björby experiences a subtle adjustment in high-temperatures to a still icy 4.3°C (39.7°F) with the onset of April, maintaining near parity with March's 1.7°C (35.1°F). During the month of April, Björby's average nighttime temperature closely mirrors its daytime counterpart, at a still icy 2.2°C (36°F).Humidity
In April, the average relative humidity is 81%.Rainfall
April is the month with the least rainfall in Björby. Rain falls for 7.4 days and accumulates 11mm (0.43") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Björby, Finland, in April, snow falls for 2.1 days, with typically accumulated 4mm (0.16") of snow. In Björby, Finland, during the entire year, snow falls for 40.1 days and aggregates up to 160mm (6.3") of snow.Daylight
The average length of the day in April is 14h and 38min.On the first day of the month, sunrise is at 07:02 and sunset at 20:24. On the last day of April, in Björby, sunrise is at 05:36 and sunset at 21:36 EEST.
Sunshine
In Björby, the average sunshine in April is 8.3h.UV index
In April, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In April, the maximum UV index of 2 suggests these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Björby in April?
What is the average humidity in April in Björby?
What is the driest month in Björby?
How much does it rain in Björby in April?
How many days does it snow in April in Björby?
What is the average length of the day in April in Björby?
What time are sunrise and sunset in April in Björby?
How many hours of sunshine does Björby have in April?
What is the UV index reading in April in Björby?
Average temperature in April
Björby, Finland
- Average high temperature in April: 4.3°C
The warmest month (with the highest average high temperature) is August (17.6°C).
The month with the lowest average high temperature is February (0.5°C).
- Average low temperature in April: 2.2°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (-1.5°C).
Average pressure in April
Björby, Finland
- Average pressure in April: 1013.9mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.4mbar).
Average wind speed in April
Björby, Finland
- Average wind speed in April: 22.6km/h
The windiest month (with the highest average wind speed) is December (31.7km/h).
The calmest month (with the lowest average wind speed) is July (20km/h).
Average humidity in April
Björby, Finland
- Average humidity in April: 81%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and October (78%).
Average rainfall in April
Björby, Finland
- Average rainfall in April: 11mm
The wettest month (with the highest rainfall) is October (32mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in April
Björby, Finland
- Average rainfall days in April: 7.4 days
The month with the highest number of rainy days is August (14.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in April
Björby, Finland
- Average snowfall in April: 4mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Björby, Finland
- Average snowfall days in April: 2.1 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Björby, Finland
- Average daylight in April: 14h and 4min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 2h and 12min).
Average sunshine days in April
Björby, Finland
- Average sunshine days in April: 19.2 days
The month with the most sunshine days is May (20.5 days).
The month with the least sunshine days is December (11.1 days).
Average UV index in April
Björby, 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 and March (UV index 1).
Average cloud cover in April
Björby, Finland
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in April
Björby, 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).
