Västerås weather and climate in 2025
Day
9 °C
Night
3 °C
Sea
9 °C
Precipitation
53 mm
in month
Rainy days
10 days
in month
Daylight
10 hours
average
Sunshine
3 hours
average
Humidity
87 %
Day
9 °C
Night
3 °C
Sea
9 °C
Precipitation
53 mm
in month
Rainy days
10 days
in month
Daylight
10 hours
average
Sunshine
3 hours
average
Humidity
87 %
Overview: Västerås
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Weather overview for Västerås
Weather overview
Västerås, located in Sweden, showcases a fascinating range of seasonal weather patterns. As the seasons change, temperatures fluctuate from chilly winters with an average high of 0 °C (32 °F) in December to pleasant summers peaking at 23 °C (73 °F) in July. Throughout the year, rainfall is quite evenly distributed but peaks in the summer, particularly in July averaging 71 mm (2.80 in). There's less daylight during the winter months with only around 1 hour of sun in December, while the long summer days enjoy up to 9 hours of sun. Västerås's climate is characterized by varying levels of humidity, from the relatively drier springs to the more humid autumns, ensuring every season offers a distinct weather experience.
January weather
January in Västerås greets residents with an average high of -1 °C (30 °F) and the nights can be quite cold averaging -6 °C (20 °F) at nighttime. The daylight hours are limited, but the calm wind speed of 3 m/s presents a still atmosphere. Consider bundling up as the near-perfect humidity at 100 % could make the cold feel more piercing.
February weather
February continues to showcase Västerås's wintry climate with daytime temperatures slightly rising to an average high of 0 °C (32 °F). With the number of wet days dropping slightly to 8 and a slight decrease in wind speed to 3 m/s, the environment feels a tad calmer.
March weather
As March arrives in Västerås, signs of spring become apparent with an average daytime high of 4 °C (38 °F). The wet days continue to wane at about 8, and the increased sunlight hours at 3 hours point towards brighter days ahead.
April weather
April in Västerås showcases spring in full bloom with average high temperatures rising to 10 °C (49 °F). The number of wet days is comparable to March at 8, and precipitation remains moderate at 31 mm (1.22 in). The wind speed also slightly decreases, enhancing the pleasantness of the season.
May weather
The merry month of May brings an even warmer climate to Västerås, with average high temperatures at a comfortable 17 °C (62 °F), though nights can still be cool at around 5 °C (42 °F). The precipitation slightly increases to an average of 37 mm (1.47 in), and the number of wet days also goes up to 8.
June weather
June brings the onset of summer, as temperatures in Västerås reach a daytime average high of 20 °C (68 °F). The night time average of 10 °C (49 °F) reflects milder conditions suitable for evening strolls. The wind speed takes a dip to 3 m/s, and the city experiences its longest days with up to 9 hours of sun.
July weather
July is the warmest month in Västerås with the mercury often climbing to an average daytime high of 23 °C (73 °F). With as many as 11 of precipitation, July can be unpredictable though it's generally the height of summer. The night time average temperature rests comfortably at 12 °C (54 °F).
August weather
August sees a slight retreat of the warmth in Västerås with average high temperatures of 21 °C (69 °F). Rainfall is almost as prominent as July, and the number of wet days remains above 11. The slight decrease in humidity can be felt as the summer slowly transitions to autumn.
September weather
September in Västerås brings a clearer signal of autumn. The average high temperature dips to a cooler 15 °C (59 °F), and the nights can bring a chill with an average low of 7 °C (45 °F). The monthly wet days decrease to about 10, but the rainfall amount is substantial at 54 mm (2.14 in).
October weather
October cools down further in Västerås with average highs of 9 °C (48 °F). The number of daylight hours shrinks, and an average of 10 of wet weather indicates a moist month. The wind picks up speed slightly, making the autumn air feel brisk.
November weather
November in Västerås is distinctly cooler with average highs only reaching 4 °C (38 °F). Regular precipitation occurs over 11, and the intermittent sunlight available for 1 hour signifies the shortening days as winter deepens.
December weather
December welcomes the Swedish winter as Västerås sees average day temperatures at a cold 0 °C (32 °F). The number of wet days hovers around 11, and the low sun hours of 1 hour make for quite dark days, enveloped in the high humidity typical for this time of year.
FAQs
How should one dress for the weather in Västerås in January?
Dressing in layers is key for January weather in Västerås. A heavy jacket, thermal undergarments, hats, gloves, and insulated boots are highly recommended to combat the freezing temperatures that can reach -1 °C (30 °F) during the day and drop to -6 °C (20 °F) at night.
Can we expect a lot of snow in Västerås in February?
Snowfall is common in Västerås in February, but with an average precipitation of 27 mm (1.05 in), it is not the snowiest month. Nonetheless, temperatures ranging from -6 °C (20 °F) at night to 0 °C (32 °F) during the day are indicative of a winter wonderland.
What is the average temperature range in Västerås during March?
In March, Västerås starts to thaw with an average high temperature of 4 °C (38 °F), while the nights remain frosty with an average low of -3 °C (26 °F). The rising temperatures and extended daylight encourage the onset of spring.
Is April typically a rainy month in Västerås?
April in Västerås brings a moderate amount of rainfall with around 8 of wet weather and 31 mm (1.22 in) of precipitation, signaling the transition from the icy grip of winter to a more temperate spring.
How do the temperatures in Västerås vary during the day and night in May?
In May, Västerås starts to feel quite pleasant with daytime temperatures hitting an average high of 17 °C (62 °F). The evening chill is still present though, with night temperatures averaging 5 °C (42 °F).
What's the average number of sunny hours in Västerås during June?
June in Västerås is bountiful with sunlight, boasting an average of 9 hours of sunny hours each day, which is perfect for making the most of the early summer weather.
What type of clothing would be suitable for July weather in Västerås?
For July weather in Västerås, light clothing is suitable due to warm daytime temperatures of 23 °C (73 °F). However, it's wise to have a sweater for the evenings when the temperature can dip to 12 °C (54 °F).
Is August a good time to enjoy outdoor activities in Västerås?
August still offers plenty of opportunity for outdoor activities in Västerås with warm average temperatures of 21 °C (69 °F) and long sunny hours, despite the frequent rain showers.
What can one expect from the temperatures in Västerås during September?
As autumn sets in Västerås, you can expect a mixed bag of temperatures with an average daytime high of 15 °C (59 °F) and cooler nights averaging 7 °C (45 °F), indicating the seasonal shift towards cooler weather.
As Västerås transitions into winter, how does October's weather reflect this?
October marks the transition towards winter in Västerås, reflected in the falling temperatures with an average high of 9 °C (48 °F), increasing wet days, and brisker wind, necessitating warmer clothing and preparation for more indoor activities.
Is November in Västerås very cold? How should one prepare?
November in Västerås is quite chilly with average highs of just 4 °C (38 °F). Preparing with heavy coats, scarves, and gloves is advisable, as the lowering temperatures hint at the approaching winter season.
What are December's daylight hours like in Västerås, and how does this impact daily life?
December in Västerås comes with very limited daylight, averaging around 1 hour of sun, resulting in short days and long nights that influence the rhythm of daily life to be more indoor-centric.
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