May weather forecastVästerås, Sweden
May
Weather in May
May is the harbinger of summer in Västerås, with temperatures rising significantly from April, touching a high of 15.3°C (59.5°F). A certain liveliness fills the air, with longer daylight hours allowing locals more time to engage in outdoor activities. While rainfall increases, the warmer weather minimizes the discomfort, and the city begins gearing up for summer festivities. This month's moderate temperatures and increased daylight become the prelude to the ensuing summer months. As the warmth settles, Västerås readies itself for the peak summer month of June.Temperature
May in Västerås sees a temperature increase, moving from a fresh 10°C (50°F) in April to a moderate 15.3°C (59.5°F). Västerås's temperature drops to an average low of 6.3°C (43.3°F) during the nights of May.Humidity
With an average relative humidity of 71%, May is the least humid month.Rainfall
In Västerås, in May, it is raining for 12.1 days, with typically 18mm (0.71") of accumulated precipitation. Throughout the year, in Västerås, there are 105.3 rainfall days, and 174mm (6.85") of precipitation is accumulated.Snowfall
Months with snowfall in Västerås are January through May, October through December. May is the last month it regularly snows in Västerås. During 0.6 snowfall days, in May, Västerås aggregates 3mm (0.12") of snow. In Västerås, during the entire year, snow falls for 41.1 days and aggregates up to 163mm (6.42") of snow.Daylight
In May, the average length of the day in Västerås is 17h and 6min.On the first day of May, sunrise is at 04:51 and sunset at 20:50. On the last day of the month, sunrise is at 03:47 and sunset at 21:56 CEST.
Sunshine
In May, the average sunshine in Västerås is 8.8h.UV index
The average daily maximum UV index in May in Västerås, Sweden, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Västerås, Sweden
- Average high temperature in May: 15.3°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in May: 6.3°C
The month with the highest average low temperature is July (12.5°C).
The coldest months (with the lowest average low temperature) are January and February (-4.9°C).
Average pressure in May
Västerås, Sweden
- Average pressure in May: 1014.6mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in May
Västerås, Sweden
- Average wind speed in May: 12.3km/h
The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in May
Västerås, Sweden
- Average humidity in May: 71%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (71%).
Average rainfall in May
Västerås, Sweden
- Average rainfall in May: 18mm
The wettest month (with the highest rainfall) is July (25mm).
The driest months (with the least rainfall) are February and April (9mm).
Average rainfall days in May
Västerås, Sweden
- Average rainfall days in May: 12.1 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is January (4 days).
Average snowfall in May
Västerås, Sweden
- Average snowfall in May: 3mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Västerås, Sweden
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Västerås, 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: 8h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in May
Västerås, Sweden
- Average sunshine days in May: 16.2 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is July (14.4 days).
Average UV index in May
Västerås, Sweden
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in May
Västerås, Sweden
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are June and July (Cloud cover 42).
Average visibility in May
Västerås, Sweden
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).








