Västerås
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Västerås Weather in December

Västerås in December averages 3°C (37°F) during the day and -3°C (27°F) at night. This is part of the winter season. Some snow/rainfall is to be expected.

Rainfall in Västerås in December

Typically, you can expect about 15 days of snow/rain this month, with 51 mm (2 in) on average. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Västerås in December

Daytime highs in Västerås in December reach 3°C (37°F), with nights around -3°C (27°F). December is part of the winter season. It stays very cold throughout much of the day, so warm winter clothing is essential. Nights drop below freezing to -3°C (27°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. With the arrival of this cold month, make sure you're dressed in warm clothing. It's important to be ready for the chill.

Sunshine in Västerås in December

With limited sunshine this month, there are about 34 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Västerås.

Västerås Temperature in December

Min Temperature
-3°C (27°F)
Max Temperature
3°C (37°F)
Chance of Rain
51%
Precipitation
51 mm (2 in)
Rainy days
15 days
Sunshine
34 hours *
Percentage Sunshine
*
* Data from: Mälaren, Sweden (38 KM, 24 Miles).

Västerås Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Västerås - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Västerås typically stay consistent throughout December, with daily highs averaging around 3°C (37°F). Nights are very cold, with lows typically ranging from -6°C (21°F) to -2°C (28°F).

Average temperatures in December

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in December

Historical weather records for Västerås in December

Browse day-by-day weather records for Västerås spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Västerås historical weather extremes in December

The extremes listed below come from historical weather data collected in Västerås from 1976 through 2025.

  • On December 20, 2015, temperatures climbed to 12°C (54°F), marking the warmest December day on record.

Best Places in Sweden in December

Find out more about the weather in Sweden and which places have the best travel conditions in this month. See all of Sweden in December →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Västerås in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Västerås in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    4/10
  • Cycling
    3/10
  • Walking
    3/10
  • Camping
    1/10
  • Outdoor sports
    3/10

Västerås 3-Day Forecast

More climate data for Västerås

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.