April weather forecastStwolno, Poland
April
Weather in April
April in Stwolno, Poland, is a refreshing spring month, with an average temperature varying between 5.1°C (41.2°F) and 15.4°C (59.7°F).Temperature
As April sets, the average high-temperature shows an increase, moving up from a frosty 8.3°C (46.9°F) in March to a moderate 15.4°C (59.7°F). An average low-temperature of 5.1°C (41.2°F) is observed in Stwolno during the April nights.Humidity
In Stwolno, the average relative humidity in April is 69%.Rainfall
In Stwolno, Poland, in April, it is raining for 12 days, with typically 19mm (0.75") of accumulated precipitation. Throughout the year, there are 131.6 rainfall days, and 324mm (12.76") of precipitation is accumulated.Snowfall
Months with snowfall in Stwolno are January through May, October through December. In Stwolno, Poland, during April, snow falls for 1.1 days and regularly aggregates up to 6mm (0.24") of snow. Throughout the year, there are 35.3 snowfall days, and 252mm (9.92") of snow is accumulated.Daylight
The average length of the day in April is 13h and 54min.On the first day of April, sunrise is at 06:25 and sunset at 19:25. On the last day of the month, sunrise is at 05:24 and sunset at 20:14 CEST.
Sunshine
The average sunshine in April is 9h.UV index
In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 4 during April translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Stwolno, Poland
- Average high temperature in April: 15.4°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in April: 5.1°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in April
Stwolno, Poland
- Average pressure in April: 1015.8mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1014.3mbar).
Average wind speed in April
Stwolno, Poland
- Average wind speed in April: 12.2km/h
The windiest month (with the highest average wind speed) is December (13.8km/h).
The calmest months (with the lowest average wind speed) are July and August (11km/h).
Average humidity in April
Stwolno, Poland
- Average humidity in April: 69%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (65%).
Average rainfall in April
Stwolno, Poland
- Average rainfall in April: 19mm
The wettest month (with the highest rainfall) is May (41mm).
The driest month (with the least rainfall) is September (17mm).
Average rainfall days in April
Stwolno, Poland
- Average rainfall days in April: 12 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is September (7.9 days).
Average snowfall in April
Stwolno, Poland
- Average snowfall in April: 6mm
The month with the highest snowfall is January (91mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Stwolno, Poland
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Stwolno, Poland
- Average daylight in April: 13h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in April
Stwolno, Poland
- Average sunshine days in April: 15.3 days
The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in April
Stwolno, 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, February, March, November and December (UV index 2).
Average cloud cover in April
Stwolno, Poland
- Average cloud cover in April: 40
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
Stwolno, Poland
- Average visibility in April: 9km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (7km).





