April weather forecastSejny, Poland
April
Weather in April
April in Sejny, Poland, is a fresh spring month, with an average temperature fluctuating between 3.1°C (37.6°F) and 12.5°C (54.5°F).Temperature
The shift into April is accompanied by a temperature increase, with the average high-temperature rising from a cold 5°C (41°F) in March to a fresh 12.5°C (54.5°F). Sejny, during April, witnesses an average low-temperature of 3.1°C (37.6°F).Humidity
The least humid month is April, with an average relative humidity of 71%.Rainfall
The month with the least rainfall is April, when the rain falls for 14.9 days and typically collects 30mm (1.18") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Sejny, in April, during 3 snowfall days, 36mm (1.42") of snow is typically accumulated. In Sejny, during the entire year, snow falls for 72.5 days and aggregates up to 622mm (24.49") of snow.Daylight
In April, the average length of the day is 14h and 5min.On the first day of the month, sunrise is at 05:57 and sunset at 19:02. On the last day of April, sunrise is at 04:50 and sunset at 19:57 CEST.
Sunshine
The average sunshine in April in Sejny is 8.3h.UV index
The average daily maximum UV index in April in Sejny, Poland, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during April translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Opt for tightly woven and loose clothing to enhance protection from the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Sejny, Poland
- Average high temperature in April: 12.5°C
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (-2°C).
- Average low temperature in April: 3.1°C
The months with the highest average low temperature are July and August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in April
Sejny, Poland
- Average pressure in April: 1015.5mbar
The month with the highest atmospheric pressure is October (1017.7mbar).
The month with the lowest atmospheric pressure is July (1013mbar).
Average wind speed in April
Sejny, Poland
- Average wind speed in April: 12.9km/h
The windiest month (with the highest average wind speed) is December (14.7km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).
Average humidity in April
Sejny, Poland
- Average humidity in April: 71%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (71%).
Average rainfall in April
Sejny, Poland
- Average rainfall in April: 30mm
The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in April
Sejny, Poland
- Average rainfall days in April: 14.9 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in April
Sejny, Poland
- Average snowfall in April: 36mm
The month with the highest snowfall is January (168mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Sejny, Poland
- Average snowfall days in April: 3 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Sejny, Poland
- Average daylight in April: 14h and 6min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in April: 8h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 24min).
Average sunshine days in April
Sejny, Poland
- Average sunshine days in April: 12 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in April
Sejny, Poland
- Average UV index in April: 4
The months with the highest UV index are May, June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Sejny, Poland
- Average cloud cover in April: 45
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in April
Sejny, Poland
- Average visibility in April: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).





