May weather forecastOpalenie, Poland
May
Weather in May
The last month of the spring, May, is an enjoyable month in Opalenie, Poland, with an average temperature fluctuating between 7.5°C (45.5°F) and 18.2°C (64.8°F).Temperature
Opalenie experiences a minor temperature shift with the start of May, with average high-temperatures moving from a moderate 13.9°C (57°F) in April to a comfortable 18.2°C (64.8°F). Throughout May, the average low-temperature dips to a frosty 7.5°C (45.5°F).Humidity
The average relative humidity in May is 72%.Rainfall
In May, in Opalenie, the rain falls for 12.2 days. Throughout May, 38mm (1.5") of precipitation is accumulated. Throughout the year, in Opalenie, Poland, there are 124.3 rainfall days, and 298mm (11.73") of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Opalenie aggregates 3mm (0.12") of snow. Throughout the year, there are 35.9 snowfall days, and 206mm (8.11") of snow is accumulated.Daylight
In May, the average length of the day in Opalenie is 15h and 58min.On the first day of the month, sunrise is at 05:07 and sunset at 20:15. On the last day of May, in Opalenie, sunrise is at 04:21 and sunset at 21:03 CEST.
Sunshine
In May, the average sunshine in Opalenie is 9.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Opalenie. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 5 in May transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Opalenie, Poland
- Average high temperature in May: 18.2°C
The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (-0.2°C).
- Average low temperature in May: 7.5°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).
Average pressure in May
Opalenie, Poland
- Average pressure in May: 1015.5mbar
The month with the highest atmospheric pressure is October (1017.1mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).
Average wind speed in May
Opalenie, Poland
- Average wind speed in May: 12km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in May
Opalenie, Poland
- Average humidity in May: 72%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (68%).
Average rainfall in May
Opalenie, Poland
- Average rainfall in May: 38mm
The wettest month (with the highest rainfall) is July (40mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in May
Opalenie, Poland
- Average rainfall days in May: 12.2 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in May
Opalenie, Poland
- Average snowfall in May: 3mm
The month with the highest snowfall is January (74mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in May
Opalenie, Poland
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Opalenie, Poland
- Average daylight in May: 16h and 0min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in May: 9h and 6min
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 0min).
Average sunshine days in May
Opalenie, Poland
- Average sunshine days in May: 16.8 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is February (13 days).
Average UV index in May
Opalenie, Poland
- Average UV index in May: 5
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 and November (UV index 1).
Average cloud cover in May
Opalenie, Poland
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Opalenie, Poland
- Average visibility in May: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).





