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 sea temperature 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
Slemmestad's transition into May brings a rise in the average high-temperature, moving from a chilly 9.1°C (48.4°F) in April to a moderate 14.4°C (57.9°F). Throughout May, Slemmestad witnesses a consistent average low-temperature of 5.5°C (41.9°F).Humidity
With an average relative humidity of 71%, May is the least humid month.Rainfall
In Slemmestad, Norway, during May, the rain falls for 14.4 days and regularly aggregates up to 36mm (1.42") of precipitation. In Slemmestad, during the entire year, the rain falls for 127.7 days and collects up to 307mm (12.09") of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, Slemmestad aggregates 2mm (0.08") of snow. Throughout the year, in Slemmestad, Norway, there are 42.9 snowfall days, and 271mm (10.67") of snow is accumulated.Sea temperature
In Slemmestad, Norway, the average seawater temperature in May is 10.8°C (51.4°F).Note: Danger awaits those who swim in 10.8°C (51.4°F) without protection. Falling below 10°C (50°F) means intense cold shock and hyperventilation.
Daylight
In Slemmestad, the average length of the day in May is 17h and 8min.On the first day of the month, sunrise is at 05:14 and sunset at 21:15. On the last day of May, in Slemmestad, sunrise is at 04:09 and sunset at 22:22 CEST.
Sunshine
In Slemmestad, the average sunshine in May is 9.1h.UV index
The months with the highest UV index in Slemmestad are May through August, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a daily UV index of 4 turns into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the temperature in May in Slemmestad?
What is the least humid month in Slemmestad?
What is the average humidity in May in Slemmestad?
How much does it rain in Slemmestad in May?
What is the last month it snows in Slemmestad?
How cold is the water in May in Slemmestad?
How many hours of daylight does Slemmestad have in May?
When is the sunrise / sunset in May in Slemmestad?
How many hours of sunshine does Slemmestad have in May?
What are the months with the highest UV index in Slemmestad?
What is the UV index reading in May in Slemmestad?
Average temperature in May
Slemmestad, Norway
- Average high temperature in May: 14.4°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.4°C).
- Average low temperature in May: 5.5°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-7.8°C).
Average pressure in May
Slemmestad, 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
Slemmestad, Norway
- Average wind speed in May: 9.6km/h
The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).
Average humidity in May
Slemmestad, Norway
- Average humidity in May: 71%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in May
Slemmestad, Norway
- Average rainfall in May: 36mm
The wettest month (with the highest rainfall) is July (40mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in May
Slemmestad, Norway
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Slemmestad, Norway
- Average snowfall in May: 2mm
The month with the highest snowfall is March (73mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Slemmestad, Norway
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Slemmestad, Norway
- Average sea temperature in May: 10.8°C
The best month for swimming (with the highest average sea temperature) is August (17.8°C).
The coldest month (with the lowest average sea temperature) is March (3.2°C).
Average daylight in May /
Average sunshine in May
Slemmestad, Norway
- Average daylight in May: 17h and 1min
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 1min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in May
Slemmestad, Norway
- Average sunshine days in May: 13.5 days
The month with the most sunshine days is December (18.3 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in May
Slemmestad, Norway
- Average UV index in May: 4
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in May
Slemmestad, Norway
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is June (Cloud cover 45).
Average visibility in May
Slemmestad, Norway
- Average visibility in May: 9km
The months with the highest visibility are April, May and June (9km).
The month with the lowest visibility is February (6km).
Slemmestad, Norway
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