May weather forecastSieluń, Poland
May
Weather in May
The last month of the spring, May, is a refreshing month in Sieluń, Poland, with an average temperature varying between 8.3°C (46.9°F) and 18.9°C (66°F).Temperature
Sieluń's weather shows a minor temperature rise with the arrival of May, moving from a moderate 13.9°C (57°F) in April to a comfortable 18.9°C (66°F). During May, Sieluń sees a mean low-temperature of 8.3°C (46.9°F).Humidity
In Sieluń, the average relative humidity in May is 72%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.3 days and typically aggregates up to 64mm (2.52") of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Sieluń aggregates 4mm (0.16") of snow. Throughout the year, there are 40.6 snowfall days, and 274mm (10.79") of snow is accumulated.Daylight
In Sieluń, the average length of the day in May is 15h and 50min.On the first day of the month, sunrise is at 05:00 and sunset at 20:02. On the last day of May, sunrise is at 04:15 and sunset at 20:48 CEST.
Sunshine
In Sieluń, the average sunshine in May is 9h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 4 during May leads to these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sieluń, Poland
- Average high temperature in May: 18.9°C
The warmest months (with the highest average high temperature) are July and August (24.3°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in May: 8.3°C
The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in May
Sieluń, Poland
- Average pressure in May: 1015.2mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in May
Sieluń, Poland
- Average wind speed in May: 11.4km/h
The windiest month (with the highest average wind speed) is December (13.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in May
Sieluń, Poland
- Average humidity in May: 72%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and August (69%).
Average rainfall in May
Sieluń, Poland
- Average rainfall in May: 64mm
The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in May
Sieluń, Poland
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in May
Sieluń, Poland
- Average snowfall in May: 4mm
The month with the highest snowfall is January (79mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Sieluń, Poland
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sieluń, Poland
- Average daylight in May: 15h and 48min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 30min).
Average sunshine days in May
Sieluń, Poland
- Average sunshine days in May: 11.3 days
The months with the most sunshine days are March and October (16.3 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in May
Sieluń, Poland
- Average UV index in May: 4
The months with the highest UV index are 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 May
Sieluń, Poland
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Sieluń, Poland
- Average visibility in May: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).





