April weather forecastSeinäjoki, Finland
April
Weather in April
April brings with it the warmthes of spring in Seinäjoki, Finland. A remarkable respite from the intense cold is evident as the mercury levels rise, offering a pleasant contrast to the preceding months. Daylight hours shoot up significantly, making the days brighter and longer. Windy conditions seem to calm down, paving the way for a comfortable climate. Meanwhile, the rainfall graph starts to incline, signaling the city's gradual transition into summer.Temperature
Seinäjoki's weather in April shows a rise in the average high-temperature, moving up from March's subzero cold -0.1°C (31.8°F) to a chilly 6.5°C (43.7°F). Seinäjoki usually reports an average low-temperature of -0.8°C (30.6°F) during the month of April.Humidity
In April, the average relative humidity in Seinäjoki is 81%.Rainfall
In Seinäjoki, during April, the rain falls for 11.9 days and regularly aggregates up to 25mm (0.98") of precipitation. In Seinäjoki, during the entire year, the rain falls for 134.7 days and collects up to 432mm (17.01") of precipitation.Snowfall
January through May, October through December are months with snowfall in Seinäjoki. In Seinäjoki, in April, snow falls for 6.3 days, with typically accumulated 66mm (2.6") of snow. In Seinäjoki, during the entire year, snow falls for 79 days and aggregates up to 691mm (27.2") of snow.Daylight
The average length of the day in April in Seinäjoki is 14h and 57min.On the first day of the month, sunrise is at 06:47 and sunset at 20:17. On the last day of April, sunrise is at 05:11 and sunset at 21:40 EEST.
Sunshine
In April, the average sunshine is 6.2h.UV index
The average daily maximum UV index in April in Seinäjoki is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 2 during April morphs into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. 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. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Seinäjoki, Finland
- Average high temperature in April: 6.5°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (-4.5°C).
- Average low temperature in April: -0.8°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 (-8.8°C).
Average pressure in April
Seinäjoki, Finland
- Average pressure in April: 1012.4mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1006mbar).
Average wind speed in April
Seinäjoki, Finland
- Average wind speed in April: 10.9km/h
The windiest month (with the highest average wind speed) is December (12.1km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).
Average humidity in April
Seinäjoki, Finland
- Average humidity in April: 81%
The months with the highest relative humidity are January and February (94%).
The months with the lowest relative humidity are May and June (67%).
Average rainfall in April
Seinäjoki, Finland
- Average rainfall in April: 25mm
The wettest month (with the highest rainfall) is August (62mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in April
Seinäjoki, Finland
- Average rainfall days in April: 11.9 days
The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in April
Seinäjoki, Finland
- Average snowfall in April: 66mm
The month with the highest snowfall is December (145mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Seinäjoki, Finland
- Average snowfall days in April: 6.3 days
The month with the highest number of snowfall days is December (16.3 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Seinäjoki, Finland
- Average daylight in April: 14h and 54min
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: 6h and 12min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in April
Seinäjoki, Finland
- Average sunshine days in April: 12 days
The month with the most sunshine days is February (15 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in April
Seinäjoki, 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
Seinäjoki, Finland
- Average cloud cover in April: 61
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is June (Cloud cover 43).
Average visibility in April
Seinäjoki, 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, February and March (6km).








