April weather forecastOulu, Finland
April
Weather in April
April brings a significant shift, the difference from previous months being quite noticeable. The thaw sets in, with April experiencing only 72mm (2.83") of snowfall, compared to 232mm (9.13") in March. Winter gives way to the warming charm of spring season. Melting snow replenishes water bodies and adds a gentle touch to the environment. The month is characterized by longer days and a reduced cloud cover, paving the way for more sunshine and improved visibility.Temperature
The commencement of April in Oulu sees a shift in the average high-temperature, moving from a subzero cold -1.6°C (29.1°F) in March to a wintry 3.4°C (38.1°F). Nighttime temperatures consistently average a subzero cold -1.8°C (28.8°F) during April.Humidity
In April, the average relative humidity is 89%.Rainfall
April and September are months with the least rain in Oulu, Finland, when the rain falls for 10.2 days and typically aggregates up to 25mm (0.98") of rain.Snowfall
January through May, September through December are months with snowfall in Oulu. In April, in Oulu, it is snowing for 10.8 days. Throughout April, 72mm (2.83") of snow is accumulated. Throughout the year, in Oulu, there are 107.1 snowfall days, and 1131mm (44.53") of snow is accumulated.Sea temperature
In April, the average sea temperature is -0.3°C (31.5°F).Note: In the activity of swimming, this is perceived as lethal and exceedingly dangerous. The cold water elicits sharp pain and instant hyperventilation. A specialized swimsuit is crucial to mitigate thermal detriment.
Daylight
In Oulu, Finland, the average length of the day in April is 15h and 16min.On the first day of April, sunrise is at 06:31 and sunset at 20:11. On the last day of the month, sunrise is at 04:44 and sunset at 21:45 EEST.
Sunshine
The average sunshine in April is 5.2h.UV index
The average daily maximum UV index in April is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 2 in April transforms into this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. It's recommended to limit sun exposure when its radiation is at its peak during midday. Always opt for UVA and UVB-resistant sunglasses on radiant 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
Average temperature in April
Oulu, Finland
- Average high temperature in April: 3.4°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (-6.1°C).
- Average low temperature in April: -1.8°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-10.6°C).
Average pressure in April
Oulu, Finland
- Average pressure in April: 1011.5mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1005.4mbar).
Average wind speed in April
Oulu, Finland
- Average wind speed in April: 11.4km/h
The windiest month (with the highest average wind speed) is November (13.7km/h).
The calmest month (with the lowest average wind speed) is July (10.6km/h).
Average humidity in April
Oulu, Finland
- Average humidity in April: 89%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (69%).
Average rainfall in April
Oulu, Finland
- Average rainfall in April: 25mm
The wettest month (with the highest rainfall) is July (59mm).
The driest months (with the least rainfall) are April and September (25mm).
Average rainfall days in April
Oulu, Finland
- Average rainfall days in April: 10.2 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in April
Oulu, Finland
- Average snowfall in April: 72mm
The month with the highest snowfall is March (232mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in April
Oulu, Finland
- Average snowfall days in April: 10.8 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in April
Oulu, Finland
- Average sea temperature in April: -0.3°C
The best month for swimming (with the highest average sea temperature) is July (16.7°C).
The coldest months (with the lowest average sea temperature) are January and February (-0.6°C).
Average daylight in April /
Average sunshine in April
Oulu, Finland
- Average daylight in April: 15h and 18min
The month with the longest days is June (Average daylight: 21h and 42min).
The month with the shortest days is December (Average daylight: 3h and 54min).
- Average sunshine in April: 5h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in April
Oulu, Finland
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is June (17 days).
The month with the least sunshine days is December (7.4 days).
Average UV index in April
Oulu, 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
Oulu, Finland
- Average cloud cover in April: 68
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in April
Oulu, Finland
- Average visibility in April: 7km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (6km).
