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
April sees a temperature increase, moving from a subzero cold -1.6°C (29.1°F) in March to an icy 3.4°C (38.1°F). Throughout the month of April, Yli-Ii sees a steady low-temperature average of -1.8°C (28.8°F).Humidity
In Yli-Ii, the average relative humidity in April is 89%.Rainfall
April and September are months with the least rain when the rain falls for 10.2 days and typically aggregates up to 25mm (0.98") of rain.Snowfall
Months with snowfall in Yli-Ii, Finland, are January through May, September through December. In Yli-Ii, in April, during 10.8 snowfall days, 72mm (2.83") of snow is typically accumulated. In Yli-Ii, Finland, during the entire year, snow falls for 107.1 days and aggregates up to 1131mm (44.53") of snow.Daylight
In Yli-Ii, Finland, the average length of the day in April is 15h and 20min.On the first day of April, sunrise is at 06:29 and sunset at 20:11. On the last day of the month, sunrise is at 04:40 and sunset at 21:47 EEST.
Sunshine
In April, the average sunshine 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 exposure to the Sun's UV radiation for average individuals.Note: In April, a daily UV index of 2 turns into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Yli-Ii in April?
What is the average humidity in April in Yli-Ii?
What is the driest month in Yli-Ii?
How much does it rain in Yli-Ii in April?
How much does it snow in Yli-Ii in April?
What is the average length of the day in April in Yli-Ii?
When are sunrise and sunset in April in Yli-Ii?
How long on average sun shines in April in Yli-Ii?
How high is the UV index in April in Yli-Ii?
Average temperature in April
Yli-Ii, 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
Yli-Ii, 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
Yli-Ii, 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
Yli-Ii, 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
Yli-Ii, 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
Yli-Ii, 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
Yli-Ii, 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
Yli-Ii, 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 daylight in April /
Average sunshine in April
Yli-Ii, Finland
- Average daylight in April: 15h and 2min
The month with the longest days is June (Average daylight: 22h and 6min).
The month with the shortest days is December (Average daylight: 3h and 36min).
- Average sunshine in April: 5h and 1min
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
Yli-Ii, 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
Yli-Ii, 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
Yli-Ii, 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
Yli-Ii, 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).
