May weather forecastStraumen, Norway
May
Weather in May
May, the last month of the spring in Straumen, is a cool month, with an average temperature varying between 12.1°C (53.8°F) and 4.1°C (39.4°F).Temperature
The arrival of May signals an increase in the average high-temperature, moving from a chilly 6.1°C (43°F) in April to a fresh 12.1°C (53.8°F). Throughout May, an average low-temperature of 4.1°C (39.4°F) is experienced in Straumen.Humidity
The months with the lowest humidity are May and June, with an average relative humidity of 73%.Rainfall
In May, in Straumen, the rain falls for 15.7 days. Throughout May, 48mm (1.89") of precipitation is accumulated. Throughout the year, there are 167.8 rainfall days, and 717mm (28.23") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 4.2 snowfall days, in May, Straumen aggregates 93mm (3.66") of snow. Throughout the year, in Straumen, there are 75.9 snowfall days, and 1278mm (50.31") of snow is accumulated.Sea temperature
In Straumen, in May, the average water temperature is 8.5°C (47.3°F).Note: To swim in 8.5°C (47.3°F) at less than 10°C (50°F), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 13°C (55.4°F) is not welcoming.
Daylight
In May, the average length of the day is 18h and 23min.On the first day of May, sunrise is at 04:46 and sunset at 21:37. On the last day of the month, sunrise is at 03:15 and sunset at 23:10 CEST.
Sunshine
In May, the average sunshine is 9h.UV index
In May, the average daily maximum UV index in Straumen is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during May translates into these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Straumen, Norway
- Average high temperature in May: 12.1°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in May: 4.1°C
The month with the highest average low temperature is July (9.5°C).
The coldest month (with the lowest average low temperature) is February (-6.5°C).
Average pressure in May
Straumen, Norway
- Average pressure in May: 1014.5mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1003.5mbar).
Average wind speed in May
Straumen, Norway
- Average wind speed in May: 9.6km/h
The windiest month (with the highest average wind speed) is January (11.7km/h).
The calmest months (with the lowest average wind speed) are July and August (8.3km/h).
Average humidity in May
Straumen, Norway
- Average humidity in May: 73%
The month with the highest relative humidity is February (90%).
The months with the lowest relative humidity are May and June (73%).
Average rainfall in May
Straumen, Norway
- Average rainfall in May: 48mm
The wettest month (with the highest rainfall) is March (78mm).
The driest month (with the least rainfall) is November (41mm).
Average rainfall days in May
Straumen, Norway
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is February (8 days).
Average snowfall in May
Straumen, Norway
- Average snowfall in May: 93mm
The month with the highest snowfall is March (275mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Straumen, Norway
- Average snowfall days in May: 4.2 days
The month with the highest number of snowfall days is March (16 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Straumen, Norway
- Average sea temperature in May: 8.5°C
The best month for swimming (with the highest average sea temperature) is August (14.8°C).
The coldest month (with the lowest average sea temperature) is March (4.5°C).
Average daylight in May /
Average sunshine in May
Straumen, Norway
- Average daylight in May: 18h and 24min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in May
Straumen, Norway
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is November (13.6 days).
The month with the least sunshine days is December (9.4 days).
Average UV index in May
Straumen, 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 February and December (UV index 1).
Average cloud cover in May
Straumen, Norway
- Average cloud cover in May: 54
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 50).
Average visibility in May
Straumen, Norway
- Average visibility in May: 9km
The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January, February and March (7km).





