April weather forecastNiwna, Poland
April
Weather in April
April is a moderate spring month in Niwna, Poland, with an average temperature varying between 14.3°C (57.7°F) and 4.7°C (40.5°F).Temperature
The start of April signals an increase in the average high-temperature, moving from a chilly 7.3°C (45.1°F) in March to a moderate 14.3°C (57.7°F). Throughout April, Niwna registers a consistent average low-temperature of 4.7°C (40.5°F).Humidity
In April, the average relative humidity is 70%.Rainfall
In Niwna, in April, it is raining for 13.5 days, with typically 24mm (0.94") of accumulated precipitation. In Niwna, Poland, during the entire year, the rain falls for 166.9 days and collects up to 477mm (18.78") of precipitation.Snowfall
January through May, October through December are months with snowfall in Niwna. In Niwna, Poland, in April, snow falls for 1.3 days, with typically accumulated 10mm (0.39") of snow. In Niwna, during the entire year, snow falls for 50.6 days and aggregates up to 384mm (15.12") of snow.Daylight
In April, the average length of the day is 13h and 55min.On the first day of April in Niwna, sunrise is at 06:12 and sunset at 19:12. On the last day of the month, sunrise is at 05:10 and sunset at 20:01 CEST.
Sunshine
The average sunshine in April is 8.4h.UV index
In Niwna, Poland, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 4 in April translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Niwna, Poland
- Average high temperature in April: 14.3°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (0°C).
- Average low temperature in April: 4.7°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in April
Niwna, Poland
- Average pressure in April: 1015.7mbar
The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013.7mbar).
Average wind speed in April
Niwna, Poland
- Average wind speed in April: 12.9km/h
The windiest month (with the highest average wind speed) is December (15.3km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).
Average humidity in April
Niwna, Poland
- Average humidity in April: 70%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in April
Niwna, Poland
- Average rainfall in April: 24mm
The wettest month (with the highest rainfall) is June (65mm).
The driest month (with the least rainfall) is November (23mm).
Average rainfall days in April
Niwna, Poland
- Average rainfall days in April: 13.5 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in April
Niwna, Poland
- Average snowfall in April: 10mm
The month with the highest snowfall is January (138mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Niwna, Poland
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Niwna, 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: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in April
Niwna, Poland
- Average sunshine days in April: 13.1 days
The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in April
Niwna, Poland
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Niwna, Poland
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
Niwna, Poland
- Average visibility in April: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).





