May weather forecastRumia, Poland
May
Weather in May
The last month of the spring, May, is a refreshing month in Rumia, Poland, with an average temperature ranging between min 7.8°C (46°F) and max 15.1°C (59.2°F).Temperature
May's arrival sees a mild rise in the average high-temperature, transitioning from April's fresh 10.8°C (51.4°F) to a refreshing 15.1°C (59.2°F). Throughout May, the average low-temperature records at a chilly 7.8°C (46°F).Humidity
The average relative humidity in May is 73%.Rainfall
In Rumia, in May, it is raining for 13.6 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 150.7 rainfall days, and 391mm (15.39") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Rumia aggregates 2mm (0.08") of snow. In Rumia, during the entire year, snow falls for 37.5 days and aggregates up to 235mm (9.25") of snow.Daylight
The average length of the day in May is 16h and 6min.On the first day of May in Rumia, sunrise is at 05:06 and sunset at 20:20. On the last day of the month, sunrise is at 04:17 and sunset at 21:10 CEST.
Sunshine
In May, the average sunshine in Rumia is 9.3h.UV index
In Rumia, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 during May translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. Boost your sun resistance with garments that are densely woven yet spacious. 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
Rumia, Poland
- Average high temperature in May: 15.1°C
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in May: 7.8°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 (-1.7°C).
Average pressure in May
Rumia, Poland
- Average pressure in May: 1015.6mbar
The month with the highest atmospheric pressure is October (1016.5mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).
Average wind speed in May
Rumia, Poland
- Average wind speed in May: 13.9km/h
The windiest month (with the highest average wind speed) is December (19.2km/h).
The calmest months (with the lowest average wind speed) are June and August (13.5km/h).
Average humidity in May
Rumia, Poland
- Average humidity in May: 73%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
Rumia, Poland
- Average rainfall in May: 33mm
The wettest month (with the highest rainfall) is July (56mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in May
Rumia, Poland
- Average rainfall days in May: 13.6 days
The month with the highest number of rainy days is July (17.5 days).
The months with the least rainy days are January and February (8.2 days).
Average snowfall in May
Rumia, Poland
- Average snowfall in May: 2mm
The month with the highest snowfall is January (64mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Rumia, Poland
- Average snowfall days in May: 0.3 days
The months with the highest number of snowfall days are January and February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rumia, Poland
- Average daylight in May: 16h and 6min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in May: 9h and 18min
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 May
Rumia, Poland
- Average sunshine days in May: 15 days
The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is December (10.8 days).
Average UV index in May
Rumia, 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
Rumia, Poland
- Average cloud cover in May: 39
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 May
Rumia, Poland
- Average visibility in May: 9km
The months with the highest visibility are April, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, May, November and December (9km).
