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 start of April brings a rise in the average high-temperature, moving from a wintry 0.3°C (32.5°F) in March to a frosty 6.9°C (44.4°F). In Isojoki, the average temperature during the nights of April drops to a freezing cold -0.3°C (31.5°F).Humidity
In Isojoki, Finland, the average relative humidity in April is 80%.Rainfall
April and September are months with the least rain in Isojoki when the rain falls for 13.4 days and typically aggregates up to 34mm (1.34") of rain.Snowfall
January through May, October through December are months with snowfall in Isojoki, Finland. In Isojoki, in April, during 7.5 snowfall days, 101mm (3.98") of snow is typically accumulated. In Isojoki, during the entire year, snow falls for 102.4 days and aggregates up to 1049mm (41.3") of snow.Daylight
In Isojoki, the average length of the day in April is 14h and 52min.On the first day of the month, sunrise is at 06:51 and sunset at 20:19. On the last day of April, in Isojoki, sunrise is at 05:18 and sunset at 21:39 EEST.
Sunshine
In April, the average sunshine in Isojoki is 6.5h.UV index
The average daily maximum UV index in April is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 2 in April leads to these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is April cold in Isojoki?
What is the average humidity in April in Isojoki?
What is the driest month in Isojoki?
How much does it rain in Isojoki in April?
How many days does it snow in April in Isojoki?
What is the average length of the day in April in Isojoki?
What time are sunrise and sunset in April in Isojoki?
How many hours of sunshine does Isojoki have in April?
What is the UV index reading in April in Isojoki?
Average temperature in April
Isojoki, Finland
- Average high temperature in April: 6.9°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 (-4.3°C).
- Average low temperature in April: -0.3°C
The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in April
Isojoki, Finland
- Average pressure in April: 1013mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1006.8mbar).
Average wind speed in April
Isojoki, Finland
- Average wind speed in April: 11.8km/h
The windiest month (with the highest average wind speed) is December (13.1km/h).
The calmest months (with the lowest average wind speed) are July and August (10.6km/h).
Average humidity in April
Isojoki, Finland
- Average humidity in April: 80%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is May (67%).
Average rainfall in April
Isojoki, Finland
- Average rainfall in April: 34mm
The wettest month (with the highest rainfall) is July (54mm).
The driest months (with the least rainfall) are April and September (34mm).
Average rainfall days in April
Isojoki, Finland
- Average rainfall days in April: 13.4 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in April
Isojoki, Finland
- Average snowfall in April: 101mm
The month with the highest snowfall is December (234mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Isojoki, Finland
- Average snowfall days in April: 7.5 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Isojoki, Finland
- Average daylight in April: 14h and 5min
The month with the longest days is June (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 5h and 18min).
- Average sunshine in April: 6h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 1h and 48min).
Average sunshine days in April
Isojoki, Finland
- Average sunshine days in April: 10.6 days
The month with the most sunshine days is May (14.4 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in April
Isojoki, Finland
- Average UV index in April: 2
The months with the highest UV index are June and 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
Isojoki, Finland
- Average cloud cover in April: 58
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are June and July (Cloud cover 44).
Average visibility in April
Isojoki, Finland
- Average visibility in April: 8km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (6km).
