May weather forecastVallentuna, Sweden
May
Weather in May
The last month of the spring, May, is a mild month in Vallentuna, Sweden, with an average temperature fluctuating between 15°C (59°F) and 6.3°C (43.3°F).Temperature
Vallentuna, Sweden, experiences a temperature shift with the start of May, with average high-temperatures moving from a chilly 9.6°C (49.3°F) in April to a refreshing 15°C (59°F). During May, the temperature in Vallentuna tends to dip to an average of 6.3°C (43.3°F) at night.Humidity
The least humid month in Vallentuna is May, with an average relative humidity of 71%.Rainfall
In May, the rain falls for 14.3 days. Throughout May, 34mm (1.34") of precipitation is accumulated. In Vallentuna, Sweden, during the entire year, the rain falls for 147.2 days and collects up to 402mm (15.83") of precipitation.Snowfall
January through May, October through December are months with snowfall in Vallentuna. May is the last month it regularly snows in Vallentuna. During 0.8 snowfall days, in May, Vallentuna aggregates 6mm (0.24") of snow. In Vallentuna, during the entire year, snow falls for 54.7 days and aggregates up to 401mm (15.79") of snow.Daylight
In Vallentuna, the average length of the day in May is 17h and 5min.On the first day of May in Vallentuna, sunrise is at 04:45 and sunset at 20:43. On the last day of the month, sunrise is at 03:41 and sunset at 21:49 CEST.
Sunshine
In May, the average sunshine in Vallentuna is 9.2h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during May leads to these advisories:
Exercise prevention - Warding off sunburn is urged. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Vallentuna, Sweden
- Average high temperature in May: 15°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in May: 6.3°C
The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).
Average pressure in May
Vallentuna, Sweden
- Average pressure in May: 1014.8mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in May
Vallentuna, Sweden
- Average wind speed in May: 13.2km/h
The windiest month (with the highest average wind speed) is December (17.7km/h).
The calmest months (with the lowest average wind speed) are July and August (12.2km/h).
Average humidity in May
Vallentuna, Sweden
- Average humidity in May: 71%
The months with the highest relative humidity are January, February and December (88%).
The month with the lowest relative humidity is May (71%).
Average rainfall in May
Vallentuna, Sweden
- Average rainfall in May: 34mm
The wettest month (with the highest rainfall) is July (55mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in May
Vallentuna, Sweden
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in May
Vallentuna, Sweden
- Average snowfall in May: 6mm
The month with the highest snowfall is February (105mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Vallentuna, Sweden
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Vallentuna, Sweden
- Average daylight in May: 17h and 6min
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 12min).
- Average sunshine in May: 9h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in May
Vallentuna, Sweden
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is August (9.9 days).
Average UV index in May
Vallentuna, Sweden
- 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 and February (UV index 1).
Average cloud cover in May
Vallentuna, Sweden
- Average cloud cover in May: 44
The months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in May
Vallentuna, Sweden
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February and March (8km).
