May weather forecastSejny, Poland
May
Weather in May
The last month of the spring, May, is an enjoyable month in Sejny, Poland, with temperature in the range of an average high of 18.2°C (64.8°F) and an average low of 7.8°C (46°F).Temperature
With the transition into May, Sejny experiences an increase in average high-temperatures, moving up from a fresh 12.5°C (54.5°F) in April to a refreshing 18.2°C (64.8°F). The average low-temperature, in May, in Sejny, is a chilly 7.8°C (46°F).Humidity
In May, the average relative humidity is 74%.Rainfall
In Sejny, during May, the rain falls for 20.3 days and regularly aggregates up to 60mm (2.36") of precipitation. In Sejny, during the entire year, the rain falls for 177.2 days and collects up to 539mm (21.22") of precipitation.Snowfall
January through May, October through December are months with snowfall in Sejny, Poland. May is the last month it regularly snows. During 0.5 snowfall days, in May, Sejny aggregates 7mm (0.28") of snow. In Sejny, Poland, during the entire year, snow falls for 72.5 days and aggregates up to 622mm (24.49") of snow.Daylight
The average length of the day in May in Sejny is 16h and 1min.On the first day of May, sunrise is at 04:48 and sunset at 19:58. On the last day of the month, sunrise is at 04:00 and sunset at 20:47 CEST.
Sunshine
The average sunshine in May in Sejny is 9h.UV index
May through July, with an average maximum UV index of 5, are months with the highest UV index in Sejny. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sejny, Poland
- Average high temperature in May: 18.2°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 May: 7.8°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 May
Sejny, Poland
- Average pressure in May: 1015.3mbar
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 May
Sejny, Poland
- Average wind speed in May: 12km/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 May
Sejny, Poland
- Average humidity in May: 74%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Sejny, Poland
- Average rainfall in May: 60mm
The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in May
Sejny, Poland
- Average rainfall days in May: 20.3 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 May
Sejny, Poland
- Average snowfall in May: 7mm
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 May
Sejny, Poland
- Average snowfall days in May: 0.5 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 May /
Average sunshine in May
Sejny, Poland
- Average daylight in May: 16h and 0min
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 May: 9h and 0min
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 May
Sejny, Poland
- Average sunshine days in May: 8.1 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 May
Sejny, Poland
- Average UV index in May: 5
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 May
Sejny, Poland
- Average cloud cover in May: 44
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 May
Sejny, Poland
- Average visibility in May: 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).
