May weather forecastHässelby, Sweden
May
Weather in May
May, the last month of the spring in Hässelby, is a refreshing month, with an average temperature varying between 6.1°C (43°F) and 16.3°C (61.3°F).Temperature
May brings a rise in the average high-temperature, transitioning from April's cool 10.7°C (51.3°F) to an enjoyable 16.3°C (61.3°F). During May, Hässelby records an average temperature of 6.1°C (43°F) at night.Humidity
May and June, with an average relative humidity of 70%, are the least humid months.Rainfall
In May, the rain falls for 14.1 days. Throughout May, 31mm (1.22") of precipitation is accumulated. Throughout the year, there are 140.4 rainfall days, and 387mm (15.24") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Hässelby, Sweden. May is the last month it regularly snows in Hässelby. During 0.7 snowfall days, in May, Hässelby aggregates 3mm (0.12") of snow. Throughout the year, in Hässelby, there are 49.3 snowfall days, and 420mm (16.54") of snow is accumulated.Daylight
The average length of the day in May in Hässelby is 16h and 59min.On the first day of the month, sunrise is at 04:52 and sunset at 20:46. On the last day of May, sunrise is at 03:50 and sunset at 21:50 CEST.
Sunshine
The average sunshine in May is 8.8h.UV index
In Hässelby, 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 ordinary individuals.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! Reflection from snow can magnify 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
Hässelby, Sweden
- Average high temperature in May: 16.3°C
The warmest month (with the highest average high temperature) is July (22.4°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in May: 6.1°C
The month with the highest average low temperature is July (12.4°C).
The coldest months (with the lowest average low temperature) are January and February (-4.6°C).
Average pressure in May
Hässelby, Sweden
- Average pressure in May: 1014.7mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in May
Hässelby, Sweden
- Average wind speed in May: 11.7km/h
The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in May
Hässelby, Sweden
- Average humidity in May: 70%
The months with the highest relative humidity are January, February, November and December (90%).
The months with the lowest relative humidity are May and June (70%).
Average rainfall in May
Hässelby, Sweden
- Average rainfall in May: 31mm
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in May
Hässelby, Sweden
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in May
Hässelby, Sweden
- Average snowfall in May: 3mm
The month with the highest snowfall is February (112mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Hässelby, Sweden
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Hässelby, Sweden
- Average daylight in May: 17h and 0min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in May: 8h and 48min
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 42min).
Average sunshine days in May
Hässelby, Sweden
- Average sunshine days in May: 14.7 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in May
Hässelby, Sweden
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Hässelby, Sweden
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 42).
Average visibility in May
Hässelby, Sweden
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January and February (7km).





