May weather forecastHerøyholmen, Norway
May
Weather in May
May, the last month of the spring in Herøyholmen, is a chilly month, with an average temperature ranging between min 5.6°C (42.1°F) and max 8.3°C (46.9°F).Temperature
Herøyholmen in May denotes a subtle temperature transition, adjusting from an average high of an icy 4.4°C (39.9°F) in April to a chilly 8.3°C (46.9°F). Herøyholmen records a mild decrease in temperature during the nights of May, averaging a cold 5.6°C (42.1°F).Humidity
In Herøyholmen, Norway, the average relative humidity in May is 76%.Rainfall
The month with the least rainfall is May, when the rain falls for 14.5 days and typically collects 41mm (1.61") of precipitation.Snowfall
January through May, October through December are months with snowfall in Herøyholmen. May is the last month it regularly snows. During 2.8 snowfall days, in May, Herøyholmen aggregates 42mm (1.65") of snow. Throughout the year, there are 50 snowfall days, and 486mm (19.13") of snow is accumulated.Daylight
The average length of the day in May is 19h and 20min.On the first day of May in Herøyholmen, sunrise is at 04:25 and sunset at 21:50. On the last day of the month, sunrise is at 02:23 and sunset at 23:53 CEST.
Sunshine
The average sunshine in May in Herøyholmen is 9.5h.UV index
In Herøyholmen, the average daily maximum UV index in May is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 3 in May leads to these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Herøyholmen, Norway
- Average high temperature in May: 8.3°C
The warmest month (with the highest average high temperature) is August (14.5°C).
The months with the lowest average high temperature are January and February (1.2°C).
- Average low temperature in May: 5.6°C
The month with the highest average low temperature is August (11.9°C).
The coldest months (with the lowest average low temperature) are January and February (-1.5°C).
Average pressure in May
Herøyholmen, Norway
- Average pressure in May: 1014.3mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1001.9mbar).
Average wind speed in May
Herøyholmen, Norway
- Average wind speed in May: 17.6km/h
The windiest month (with the highest average wind speed) is January (27.7km/h).
The calmest month (with the lowest average wind speed) is July (15.6km/h).
Average humidity in May
Herøyholmen, Norway
- Average humidity in May: 76%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Herøyholmen, Norway
- Average rainfall in May: 41mm
The wettest month (with the highest rainfall) is October (79mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in May
Herøyholmen, Norway
- Average rainfall days in May: 14.5 days
The month with the highest number of rainy days is September (18.5 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in May
Herøyholmen, Norway
- Average snowfall in May: 42mm
The month with the highest snowfall is March (106mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Herøyholmen, Norway
- Average snowfall days in May: 2.8 days
The month with the highest number of snowfall days is March (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
Herøyholmen, Norway
- Average daylight in May: 19h and 18min
The month with the longest days is July (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 3h and 12min).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in May
Herøyholmen, Norway
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is January (13.1 days).
The month with the least sunshine days is March (9.8 days).
Average UV index in May
Herøyholmen, Norway
- Average UV index in May: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in May
Herøyholmen, Norway
- Average cloud cover in May: 54
The month with the most cloud cover is March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 51).
Average visibility in May
Herøyholmen, Norway
- Average visibility in May: 9km
The months with the highest visibility are June, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, July, November and December (9km).
