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
The beginning of April marks a shift in the average high-temperature, moving from March's subzero cold -0.3°C (31.5°F) to a wintry 5.9°C (42.6°F). Sysmä's nights in April experience an average temperature drop to a subzero cold -0.7°C (30.7°F).Humidity
The average relative humidity in April in Sysmä, Finland, is 82%.Rainfall
The month with the least rainfall is April, when the rain falls for 11.7 days and typically collects 24mm (0.94") of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Sysmä, in April, during 7.1 snowfall days, 68mm (2.68") of snow is typically accumulated. In Sysmä, Finland, during the entire year, snow falls for 99.7 days and aggregates up to 915mm (36.02") of snow.Daylight
In Sysmä, the average length of the day in April is 14h and 47min.On the first day of the month, sunrise is at 06:38 and sunset at 20:03. On the last day of April, in Sysmä, sunrise is at 05:07 and sunset at 21:21 EEST.
Sunshine
The average sunshine in April is 5.9h.UV index
In April, the average daily maximum UV index in Sysmä is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In April, a regular UV index of 2 translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is April in Sysmä?
What is the average humidity in April in Sysmä?
What is the driest month in Sysmä?
How many days does it rain in April in Sysmä?
How many days does it snow in April in Sysmä?
What is the average length of the day in April in Sysmä?
When is the sunrise / sunset in April in Sysmä?
How long on average sun shines in April in Sysmä?
What is the UV index reading in April in Sysmä?
Average temperature in April
Sysmä, Finland
- Average high temperature in April: 5.9°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-4.9°C).
- Average low temperature in April: -0.7°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-9.2°C).
Average pressure in April
Sysmä, Finland
- Average pressure in April: 1012.9mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in April
Sysmä, Finland
- Average wind speed in April: 10.8km/h
The windiest month (with the highest average wind speed) is December (13.1km/h).
The calmest month (with the lowest average wind speed) is July (9.9km/h).
Average humidity in April
Sysmä, Finland
- Average humidity in April: 82%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall in April
Sysmä, Finland
- Average rainfall in April: 24mm
The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in April
Sysmä, Finland
- Average rainfall days in April: 11.7 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in April
Sysmä, Finland
- Average snowfall in April: 68mm
The month with the highest snowfall is December (202mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in April
Sysmä, Finland
- Average snowfall days in April: 7.1 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Sysmä, Finland
- Average daylight in April: 14h and 5min
The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 30min).
- Average sunshine in April: 5h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average sunshine days in April
Sysmä, Finland
- Average sunshine days in April: 12.6 days
The month with the most sunshine days is May (17.5 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in April
Sysmä, 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
Sysmä, Finland
- Average cloud cover in April: 63
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in April
Sysmä, Finland
- Average visibility in April: 7km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).
