Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May introduces a minor temperature shift, with average high-temperatures adjusting from April's fresh 10.8°C (51.4°F) to a refreshing 15.1°C (59.2°F). May brings with it a nighttime average temperature of 7.8°C (46°F).Humidity
In Rumia, Poland, the average relative humidity in May is 73%.Rainfall
In May, in Rumia, the rain falls for 13.6 days. Throughout May, 33mm (1.3") of precipitation is accumulated. In Rumia, during the entire year, the rain falls for 150.7 days and collects up to 391mm (15.39") of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Rumia. 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
In May, the average length of the day 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 Rumia, the average sunshine in May is 9.3h.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 ordinary individuals.Note: The UV index of 4 during May translates into the following guidance:
Heed the precautions - It is counselled to guard against solar damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the average May temperature in Rumia?
What is the average humidity in May in Rumia?
How many days does it rain in May in Rumia?
What is the last month it snows in Rumia?
How many hours of daylight does Rumia have in May?
When is the sunrise / sunset in May in Rumia?
How long on average sun shines in May in Rumia?
What is the UV index reading in May in Rumia?
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 1min
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 2min
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).
Rumia, Poland
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