May weather forecastRøyken, Norway
May
Weather in May
May, the last month of the spring in Røyken, is a moderate month, with temperature in the range of an average low of 5.3°C (41.5°F) and an average high of 14.5°C (58.1°F).Temperature
The shift from April to May is marked by an increase in the average high-temperature, moving from a frosty 9.3°C (48.7°F) to a moderate 14.5°C (58.1°F). In Røyken, May's nights observe an average temperature dip to a wintry 5.3°C (41.5°F).Humidity
The least humid month in Røyken is May, with an average relative humidity of 70%.Rainfall
In Røyken, during May, the rain falls for 12.8 days and regularly aggregates up to 33mm (1.3") of precipitation. In Røyken, during the entire year, the rain falls for 123.4 days and collects up to 384mm (15.12") of precipitation.Snowfall
January through May, October through December are months with snowfall in Røyken. May is the last month it regularly snows in Røyken. During 0.4 snowfall days, in May, Røyken aggregates 2mm (0.08") of snow. Throughout the year, there are 44.9 snowfall days, and 505mm (19.88") of snow is accumulated.Daylight
The average length of the day in May in Røyken is 17h and 8min.On the first day of May, sunrise is at 05:15 and sunset at 21:15. On the last day of the month, sunrise is at 04:10 and sunset at 22:22 CEST.
Sunshine
The average sunshine in May is 9.3h.UV index
In May, the average daily maximum UV index in Røyken is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 during May leads to these advisories:
Put precautions into practice - Guidance to elude sunburn is provided. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Røyken, Norway
- Average high temperature in May: 14.5°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-2.4°C).
- Average low temperature in May: 5.3°C
The month with the highest average low temperature is July (10.6°C).
The coldest months (with the lowest average low temperature) are January and February (-7.2°C).
Average pressure in May
Røyken, 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 (1008mbar).
Average wind speed in May
Røyken, Norway
- Average wind speed in May: 9.8km/h
The windiest months (with the highest average wind speed) are January and December (10.6km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in May
Røyken, Norway
- Average humidity in May: 70%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in May
Røyken, Norway
- Average rainfall in May: 33mm
The wettest months (with the highest rainfall) are July and November (42mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in May
Røyken, Norway
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is July (15.2 days).
The months with the least rainy days are January and February (4.8 days).
Average snowfall in May
Røyken, Norway
- Average snowfall in May: 2mm
The month with the highest snowfall is March (113mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Røyken, Norway
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Røyken, Norway
- Average daylight in May: 17h and 6min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in May: 9h and 18min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 24min).
Average sunshine days in May
Røyken, Norway
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is April (19.1 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in May
Røyken, 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 and February (UV index 1).
Average cloud cover in May
Røyken, Norway
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is June (Cloud cover 43).
Average visibility in May
Røyken, Norway
- Average visibility in May: 9km
The months with the highest visibility are April, May, June and July (9km).
The months with the lowest visibility are January, February and March (7km).
