Annual mean 8°C · wettest around December · prevailing wind SW
Warmest
22.3 °C
Coldest
-1.7 °C
Wettest
16%
Windiest
4.6 m/s
Prevailing
SW
3.7 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Västerås over the whole year is 8°C. July is the hottest month, with highs of about 21°C; February is the coldest, with lows of about -2°C. Västerås has no sharply defined rainy season: the chance of rain on a given day runs from 8% in April, the driest month, to 16% in December, the wettest. Winds in Västerås are highest in January, averaging 3.3 m/s (12 km/h), and lightest in September, at 2.7 m/s (10 km/h). The prevailing wind is from the SW. The clearest skies in Västerås come in June, when the sky is typically 44% covered; December is the cloudiest month, at 77%.
Month by month Västerås climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-1°C
-2°C
-6°C
14%
73%
3.3 m/s
0
0
0
February
1°C
-2°C
-4°C
11%
67%
3.2 m/s
0
0
2
March
4°C
-1°C
-1°C
10%
60%
3.1 m/s
0
0
7
April
9°C
2°C
4°C
8%
50%
3.2 m/s
4
0
32
May
15°C
7°C
11°C
10%
48%
3.0 m/s
29
1
69
June
20°C
13°C
18°C
9%
44%
3.0 m/s
67
11
75
July
21°C
14°C
19°C
9%
47%
2.8 m/s
74
14
72
August
20°C
14°C
18°C
11%
52%
2.8 m/s
74
9
78
September
16°C
10°C
13°C
9%
59%
2.7 m/s
37
1
85
October
10°C
6°C
6°C
13%
67%
3.1 m/s
3
0
46
November
4°C
3°C
0°C
14%
76%
3.0 m/s
0
0
15
December
0°C
-1°C
-4°C
16%
77%
2.9 m/s
0
0
1
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Västerås weather by season
Year round, Västerås has days of about -1°C at their warmest in January, its coolest month, and 21°C in July, its warmest; the coolest hours of the day run from -2°C to 14°C through the year, and the average temperature over the year is 8°C around the clock. Rain is most likely around December and least likely around April. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Västerås weather in winterDecember to February
High 0°CLow -2°CRain 14%
Winter in Västerås has typical daily highs of about 0°C and lows of about -2°C, with a 14% chance of rain on a given day.
Västerås weather in springMarch to May
High 9°CLow 3°CRain 9%
Spring in Västerås has typical daily highs of about 9°C and lows of about 3°C, with a 9% chance of rain on a given day.
Västerås weather in summerJune to August
High 20°CLow 13°CRain 10%
Summer in Västerås has typical daily highs of about 20°C and lows of about 13°C, with a 10% chance of rain on a given day.
Västerås weather in autumnSeptember to November
High 10°CLow 6°CRain 12%
Autumn in Västerås has typical daily highs of about 10°C and lows of about 6°C, with a 12% chance of rain on a given day.
When is the rainy season in Västerås?
Västerås has no sharply defined rainy season: the chance of rain on a given day runs from 8% in April, the driest month, to 16% in December, the wettest.
What time of year is Västerås windiest?
Winds in Västerås are highest in January, averaging 3.3 m/s (12 km/h), and lightest in September, at 2.7 m/s (10 km/h). The prevailing wind is from the SW.
What is the average temperature in Västerås year round?
The average temperature in Västerås over the whole year is 8°C. July is the hottest month, with highs of about 21°C; February is the coldest, with lows of about -2°C.