Aarau Weather in December

Aarau in December averages 5°C (41°F) during the day and -1°C (30°F) at night. This is part of the winter season, and quite a bit of snow/rainfall is expected this month.

Rainfall in Aarau in December

Looking at the last 30 years, the data shows about 15 days with snow/rain, averaging 114 mm (4.5 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Aarau in December

Temperatures in Aarau in December top out at 5°C (41°F) and drop to -1°C (30°F) overnight. During December, you'll experience the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows of -1°C (30°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.

Sunshine in Aarau in December

This month is characterized by fewer sunny days, with about 53 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

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

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
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• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Switzerland, check out our Aarau's climate page.

Aarau Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 5°C (41°F)  

Chance of Rain 48%  

Precipitation 114 mm (4.5 in)  

Rainy days 15 days  

Humidity 82% *  

Sunshine 53 hours *  

Percentage Sunshine 26% *  

* Data from: Basel, Switzerland (38 KM, 24 Miles).

What to Wear in Aarau 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. Prepare for significant rainfall with proper waterproof clothing and shoes. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Aarau 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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Switzerland, check out our Aarau's climate page.

More climate data for Aarau

Temperature Rainfall Sunshine Humidity

See the full Aarau climate overview or explore weather in Switzerland.