Västerås, Västmanland Weather by Month and Climate Averages

How much rain does Västerås get?

Västerås gets 576 mm of precipitation in an average year, spread over about 148 days with measurable rain. That is fewer rainy days than 81% of Sweden.

July is the wettest month, with 72 mm. March is the driest, with 27 mm. November has the most rainy days, about 15.

The longest dry spell in the last five years lasted 31 days, to June 17, 2023.

Västerås weather by month

Västerås weather in January

In January, Västerås averages a high of 0°C and a low of -5°C. It gets 37 mm of precipitation over about 13 rainy days. The sun is out about 23% of daylight hours. The January record high is 10°C (1983) and the record low is -28°C (1987).

Västerås weather in February

In February, Västerås averages a high of 1°C and a low of -5°C. It gets 31 mm of precipitation over about 11 rainy days. The sun is out about 31% of daylight hours. The February record high is 12°C (2021) and the record low is -32°C (1979).

Västerås weather in March

In March, Västerås averages a high of 5°C and a low of -3°C. It gets 27 mm of precipitation over about 11 rainy days. The sun is out about 38% of daylight hours. The March record high is 19°C (2017) and the record low is -21°C (2005).

Västerås weather in April

In April, Västerås averages a high of 11°C and a low of 1°C. It gets 31 mm of precipitation over about 10 rainy days. The sun is out about 42% of daylight hours. The April record high is 26°C (1993) and the record low is -10°C (1985).

Västerås weather in May

In May, Västerås averages a high of 17°C and a low of 6°C. It gets 41 mm of precipitation over about 11 rainy days. The sun is out about 44% of daylight hours. The May record high is 29°C (1989) and the record low is -4°C (1978).

Västerås weather in June

In June, Västerås averages a high of 20°C and a low of 10°C. It gets 62 mm of precipitation over about 13 rainy days. The sun is out about 49% of daylight hours. The June record high is 32°C (1970) and the record low is 1°C (1997). June is one of the most comfortable months to visit.

Västerås weather in July

In July, Västerås averages a high of 23°C and a low of 13°C. It gets 72 mm of precipitation over about 12 rainy days. The sun is out about 39% of daylight hours. The July record high is 34°C (2022) and the record low is 4°C (1996).

Västerås weather in August

In August, Västerås averages a high of 22°C and a low of 12°C. It gets 72 mm of precipitation over about 14 rainy days. The sun is out about 35% of daylight hours. The August record high is 35°C (1975) and the record low is 2°C (1984). August is one of the most comfortable months to visit.

Västerås weather in September

In September, Västerås averages a high of 16°C and a low of 8°C. It gets 45 mm of precipitation over about 11 rainy days. The sun is out about 32% of daylight hours. The September record high is 28°C (2024) and the record low is -7°C (2001).

Västerås weather in October

In October, Västerås averages a high of 10°C and a low of 4°C. It gets 56 mm of precipitation over about 13 rainy days. The sun is out about 29% of daylight hours. The October record high is 21°C (1995) and the record low is -11°C (1992).

Västerås weather in November

In November, Västerås averages a high of 5°C and a low of 1°C. It gets 53 mm of precipitation over about 15 rainy days. The sun is out about 21% of daylight hours. The November record high is 16°C (2020) and the record low is -17°C (1980).

Västerås weather in December

In December, Västerås averages a high of 2°C and a low of -3°C. It gets 48 mm of precipitation over about 15 rainy days. The sun is out about 21% of daylight hours. The December record high is 12°C (2015) and the record low is -27°C (2001).

Sunshine, humidity and wind in Västerås

June is the sunniest month in Västerås, with sunshine about 49% of daylight hours. November is the cloudiest, at 21%. Over the year the sun shines about 34% of daylight hours. Västerås is sunnier than 77% of Sweden.

Humidity peaks in December at 89% and is lowest in May at 57%.

First and last freeze in Västerås

The first fall freeze in Västerås typically comes around October 4, and the last spring freeze around May 8. That leaves a frost-free growing season of about 149 days.

Västerås weather records

The hottest temperature on record at the Västerås station is 35°C, on August 7, 1975. The coldest is -32°C, on February 16, 1979.

The wettest day on record brought 92 mm of rain, on July 21, 1984.

41 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.4°C per decade since 1970.

The best time to visit Västerås

The most comfortable time to visit is typically June and August, when daytime highs sit near 21°C.

Winter (December–February) is cold, with average highs around 1°C and lows near -4°C.

Spring (March–May) is chilly, with average highs around 11°C and lows near 1°C.

Summer (June–August) is warm, with average highs around 22°C and lows near 12°C.

Autumn (September–November) is chilly, with average highs around 10°C and lows near 4°C.

Västerås climate questions

How much rain does Västerås get?

Västerås gets 576 mm of precipitation in an average year, over about 148 rainy days.

What is the wettest month in Västerås?

July is the wettest month in Västerås, with 72 mm. March is the driest, with 27 mm.

How many rainy days does Västerås have a year?

Västerås has about 148 days with measurable rain in an average year. November has the most, about 15.

What is the hottest month in Västerås?

July is the warmest month in Västerås, with an average high of 23°C.

What is the coldest month in Västerås?

January is the coldest month in Västerås, with an average low of -5°C.

What is the record high temperature in Västerås?

The record high at the Västerås station is 35°C, set on August 7, 1975. The record low is -32°C, on February 16, 1979.

What is the sunniest month in Västerås?

June is the sunniest month in Västerås, with sunshine about 49% of daylight hours. November is the cloudiest.

When is the first frost in Västerås?

The first fall freeze in Västerås typically comes around October 4. The last spring freeze is around May 8.

What is the best time to visit Västerås?

The most comfortable time to visit is typically June and August, when daytime highs sit near 21°C.