May weather forecastSupraśl, Poland
May
Weather in May
The last month of the spring, May, is a comfortable month in Supraśl, Poland, with temperature in the range of an average high of 18.9°C (66°F) and an average low of 8.3°C (46.9°F).Temperature
The beginning of May signals a rise in the average high-temperature, moving from a refreshing 13.3°C (55.9°F) in April to an enjoyable 18.9°C (66°F). In Supraśl, an average nighttime temperature of 8.3°C (46.9°F) is expected during May.Humidity
In May, the average relative humidity is 73%.Rainfall
In Supraśl, in May, it is raining for 19.3 days, with typically 62mm (2.44") of accumulated precipitation. In Supraśl, Poland, during the entire year, the rain falls for 164.4 days and collects up to 515mm (20.28") of precipitation.Snowfall
In Supraśl, Poland, snow does not fall in May through September.Daylight
In Supraśl, the average length of the day in May is 15h and 53min.On the first day of the month, sunrise is at 04:51 and sunset at 19:55. On the last day of May, in Supraśl, sunrise is at 04:06 and sunset at 20:42 CEST.
Sunshine
In Supraśl, the average sunshine in May is 9h.UV index
In Supraśl, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Supraśl, Poland
- Average high temperature in May: 18.9°C
The warmest months (with the highest average high temperature) are July and August (24.2°C).
The month with the lowest average high temperature is January (-1.5°C).
- Average low temperature in May: 8.3°C
The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure in May
Supraśl, Poland
- Average pressure in May: 1015mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1013.1mbar).
Average wind speed in May
Supraśl, Poland
- Average wind speed in May: 10.9km/h
The windiest month (with the highest average wind speed) is December (13.2km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in May
Supraśl, Poland
- Average humidity in May: 73%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April and August (70%).
Average rainfall in May
Supraśl, Poland
- Average rainfall in May: 62mm
The wettest month (with the highest rainfall) is June (69mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in May
Supraśl, Poland
- Average rainfall days in May: 19.3 days
The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in May
Supraśl, Poland
- Average snowfall in May: 0mm
The month with the highest snowfall is January (192mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in May
Supraśl, Poland
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Supraśl, Poland
- Average daylight in May: 15h and 54min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 12min).
Average sunshine days in May
Supraśl, Poland
- Average sunshine days in May: 9.3 days
The month with the most sunshine days is October (15.5 days).
The months with the least sunshine days are January and February (6.8 days).
Average UV index in May
Supraśl, Poland
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Supraśl, Poland
- Average cloud cover in May: 44
The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Supraśl, Poland
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).





