May weather forecastSarpsborg, Norway
May
Weather in May
The last month of the spring, May, is a moderate month in Sarpsborg, Norway, with an average temperature ranging between max 14.2°C (57.6°F) and min 7.2°C (45°F).Temperature
The shift into May is characterized by a subtle rise in the average high-temperature, transitioning from April's chilly 9.7°C (49.5°F) to a moderate 14.2°C (57.6°F). An average nighttime temperature of 7.2°C (45°F) is witnessed in Sarpsborg throughout May.Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 71%.Rainfall
In Sarpsborg, in May, it is raining for 13.4 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, in Sarpsborg, there are 140.1 rainfall days, and 339mm (13.35") of precipitation is accumulated.Snowfall
Months with snowfall in Sarpsborg are January through May, October through December. May is the last month it regularly snows in Sarpsborg, Norway. During 0.3 snowfall days, in May, Sarpsborg aggregates 1mm (0.04") of snow. Throughout the year, in Sarpsborg, Norway, there are 27.5 snowfall days, and 125mm (4.92") of snow is accumulated.Daylight
In Sarpsborg, the average length of the day in May is 17h and 1min.On the first day of the month, sunrise is at 05:15 and sunset at 21:10. On the last day of May, in Sarpsborg, sunrise is at 04:11 and sunset at 22:14 CEST.
Sunshine
The average sunshine in May is 9.6h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Take precautions - Protection against sun damage is advised. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sarpsborg, Norway
- Average high temperature in May: 14.2°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The months with the lowest average high temperature are January and February (0.1°C).
- Average low temperature in May: 7.2°C
The months with the highest average low temperature are July and August (12.9°C).
The coldest month (with the lowest average low temperature) is February (-4°C).
Average pressure in May
Sarpsborg, Norway
- Average pressure in May: 1014.1mbar
The month with the highest atmospheric pressure is April (1014.3mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in May
Sarpsborg, Norway
- Average wind speed in May: 13.7km/h
The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).
Average humidity in May
Sarpsborg, Norway
- Average humidity in May: 71%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in May
Sarpsborg, Norway
- Average rainfall in May: 27mm
The wettest months (with the highest rainfall) are July and August (44mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in May
Sarpsborg, Norway
- Average rainfall days in May: 13.4 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in May
Sarpsborg, Norway
- Average snowfall in May: 1mm
The month with the highest snowfall is March (30mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Sarpsborg, Norway
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sarpsborg, Norway
- Average daylight in May: 17h and 0min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in May: 9h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in May
Sarpsborg, Norway
- Average sunshine days in May: 14.6 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is July (11 days).
Average UV index in May
Sarpsborg, 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, February, March, October, November and December (UV index 2).
Average cloud cover in May
Sarpsborg, Norway
- Average cloud cover in May: 41
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility in May
Sarpsborg, Norway
- Average visibility in May: 10km
The months with the highest visibility are April, May, June, August and September (10km).
The months with the lowest visibility are January, February, March, July, October, November and December (9km).





