May weather forecastSkien, Norway
May
Weather in May
May in Skien, with an average maximum temperature of 13.8°C (56.8°F), is pleasantly mild. The full onset of spring is characterized by a longer span of daylight, allowing the flourishing biodiversity of the city to bask in the warmer sun. Occasional rainfall doesn’t deter residents and travellers from indulging in outdoor pursuits. Comfortable temperatures allow for longer excursions into the city's panoramic landscapes and cultural hotspots.Temperature
As May arrives, Skien's weather shows a minor increase in high-temperatures, edging from April's frosty 9.1°C (48.4°F) to a moderate 13.8°C (56.8°F). May nights in Skien, Norway, cool down to an average low-temperature of 6.3°C (43.3°F).Humidity
With an average relative humidity of 69%, May is the least humid month in Skien.Rainfall
In Skien, in May, during 14.5 rainfall days, 58mm (2.28") of precipitation is typically accumulated. In Skien, during the entire year, the rain falls for 142.3 days and collects up to 756mm (29.76") of precipitation.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, Skien aggregates 1mm (0.04") of snow. Throughout the year, in Skien, there are 52 snowfall days, and 1085mm (42.72") of snow is accumulated.Daylight
In Skien, Norway, the average length of the day in May is 17h and 1min.On the first day of May, sunrise is at 05:21 and sunset at 21:15. On the last day of the month, sunrise is at 04:18 and sunset at 22:20 CEST.
Sunshine
In May, the average sunshine in Skien is 9.4h.UV index
In May, the average daily maximum UV index in Skien, Norway, is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 4 in May transforms into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Skien, Norway
- Average high temperature in May: 13.8°C
The warmest month (with the highest average high temperature) is July (19.7°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in May: 6.3°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is February (-4.7°C).
Average pressure in May
Skien, Norway
- Average pressure in May: 1014.2mbar
The month with the highest atmospheric pressure is April (1014.5mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in May
Skien, Norway
- Average wind speed in May: 11.8km/h
The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (10.7km/h).
Average humidity in May
Skien, Norway
- Average humidity in May: 69%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (69%).
Average rainfall in May
Skien, Norway
- Average rainfall in May: 58mm
The wettest month (with the highest rainfall) is November (85mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in May
Skien, Norway
- Average rainfall days in May: 14.5 days
The months with the highest number of rainy days are July and August (16.7 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in May
Skien, Norway
- Average snowfall in May: 1mm
The month with the highest snowfall is January (302mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Skien, Norway
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Skien, Norway
- Average daylight in May: 17h and 0min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in May: 9h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The months with the least sunshine are January and December (Average sunshine: 3h and 24min).
Average sunshine days in May
Skien, Norway
- Average sunshine days in May: 13.9 days
The month with the most sunshine days is April (17.9 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in May
Skien, Norway
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Skien, Norway
- Average cloud cover in May: 42
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in May
Skien, Norway
- Average visibility in May: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (8km).





