May weather forecastSømna, Norway
May
Weather in May
The last month of the spring, May, is a frosty month in Sømna, Norway, with an average temperature varying between 5.1°C (41.2°F) and 8.5°C (47.3°F).Temperature
With the onset of May, Sømna experiences a subtle temperature shift, with the average high-temperature moving from an icy 4.3°C (39.7°F) in April to a chilly 8.5°C (47.3°F). Throughout May, Sømna records a steady low-temperature average of 5.1°C (41.2°F), a minor decrease from its daytime counterpart.Humidity
The average relative humidity in May in Sømna is 77%.Rainfall
In Sømna, in May, it is raining for 15 days, with typically 49mm (1.93") of accumulated precipitation. Throughout the year, in Sømna, there are 179.7 rainfall days, and 982mm (38.66") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Sømna. May is the last month it regularly snows in Sømna. During 2.9 snowfall days, in May, Sømna aggregates 40mm (1.57") of snow. Throughout the year, in Sømna, Norway, there are 60.9 snowfall days, and 701mm (27.6") of snow is accumulated.Daylight
In May, the average length of the day in Sømna, Norway, is 18h and 58min.On the first day of the month, sunrise is at 04:32 and sunset at 21:44. On the last day of May, in Sømna, Norway, sunrise is at 02:44 and sunset at 23:34 CEST.
Sunshine
The average sunshine in May is 9.4h.UV index
In May, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 3 during May, leads to the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sømna, Norway
- Average high temperature in May: 8.5°C
The warmest months (with the highest average high temperature) are July and August (14.7°C).
The month with the lowest average high temperature is February (0.1°C).
- Average low temperature in May: 5.1°C
The month with the highest average low temperature is August (11.1°C).
The coldest month (with the lowest average low temperature) is February (-3°C).
Average pressure in May
Sømna, 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 (1002.3mbar).
Average wind speed in May
Sømna, Norway
- Average wind speed in May: 15.3km/h
The windiest month (with the highest average wind speed) is January (24.3km/h).
The calmest month (with the lowest average wind speed) is July (13.5km/h).
Average humidity in May
Sømna, Norway
- Average humidity in May: 77%
The months with the highest relative humidity are February and April (81%).
The month with the lowest relative humidity is October (76%).
Average rainfall in May
Sømna, Norway
- Average rainfall in May: 49mm
The wettest month (with the highest rainfall) is December (120mm).
The driest month (with the least rainfall) is June (47mm).
Average rainfall days in May
Sømna, Norway
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is October (19.2 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in May
Sømna, Norway
- Average snowfall in May: 40mm
The month with the highest snowfall is March (169mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Sømna, Norway
- Average snowfall days in May: 2.9 days
The month with the highest number of snowfall days is March (13.3 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sømna, Norway
- Average daylight in May: 19h and 0min
The month with the longest days is June (Average daylight: 21h and 54min).
The month with the shortest days is December (Average daylight: 3h and 42min).
- Average sunshine in May: 9h and 24min
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 30min).
Average sunshine days in May
Sømna, Norway
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is July (13.3 days).
The month with the least sunshine days is March (8.5 days).
Average UV index in May
Sømna, Norway
- Average UV index in May: 3
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Sømna, Norway
- Average cloud cover in May: 55
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
Sømna, Norway
- Average visibility in May: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, March, April, May, July, September, October, November and December (9km).





