April weather forecastSielsko, Poland
April
Weather in April
April is a mild spring month in Sielsko, Poland, with an average temperature ranging between min 4.3°C (39.7°F) and max 13.8°C (56.8°F).Temperature
The onset of April brings a temperature shift, with the average high-temperature moving from a chilly 7.2°C (45°F) in March to a moderate 13.8°C (56.8°F). Sielsko witnesses an average low-temperature of 4.3°C (39.7°F) throughout the month of April.Humidity
April is the least humid month, with an average relative humidity of 71%.Rainfall
The month with the least rainfall is April, when the rain falls for 11.8 days and typically collects 18mm (0.71") of precipitation.Snowfall
January through April, November and December are months with snowfall in Sielsko. April is the last month it regularly snows in Sielsko. During 1.2 snowfall days, in April, Sielsko aggregates 6mm (0.24") of snow. Throughout the year, in Sielsko, Poland, there are 40.2 snowfall days, and 268mm (10.55") of snow is accumulated.Daylight
In April, the average length of the day is 14h and 2min.On the first day of April, sunrise is at 06:29 and sunset at 19:33. On the last day of the month, sunrise is at 05:23 and sunset at 20:26 CEST.
Sunshine
In Sielsko, Poland, the average sunshine in April is 9h.UV index
In Sielsko, Poland, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in April translates into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. 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
Average temperature in April
Sielsko, Poland
- Average high temperature in April: 13.8°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in April: 4.3°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-2.2°C).
Average pressure in April
Sielsko, Poland
- Average pressure in April: 1015.8mbar
The months with the highest atmospheric pressure are September and October (1016.5mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in April
Sielsko, Poland
- Average wind speed in April: 13.6km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is August (12.2km/h).
Average humidity in April
Sielsko, Poland
- Average humidity in April: 71%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is April (71%).
Average rainfall in April
Sielsko, Poland
- Average rainfall in April: 18mm
The wettest month (with the highest rainfall) is January (48mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in April
Sielsko, Poland
- Average rainfall days in April: 11.8 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in April
Sielsko, Poland
- Average snowfall in April: 6mm
The month with the highest snowfall is January (88mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Sielsko, Poland
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Sielsko, Poland
- Average daylight in April: 14h and 0min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in April
Sielsko, Poland
- Average sunshine days in April: 14.8 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is December (8.3 days).
Average UV index in April
Sielsko, Poland
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Sielsko, Poland
- Average cloud cover in April: 40
The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in April
Sielsko, Poland
- Average visibility in April: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, November and December (8km).





