Alt Sankt Johann Weather in December

December in Alt Sankt Johann sees daytime temperatures around 3°C (37°F) and lows of -5°C (23°F) at night. With around 139 mm (5.5 in) of snow/rainfall expected, it's worth packing a rain jacket.

Rainfall in Alt Sankt Johann in December

Historically, approximately 15 days this month are expected to have snow/rain, averaging 139 mm (5.5 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Alt Sankt Johann in December

Daytime temperatures in Alt Sankt Johann reach 3°C (37°F) in December, dropping to -5°C (23°F) at night. Winter occurs in December. Staying warm is the main priority this month, especially during mornings and evenings. At -5°C (23°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. With the coldest weather of the year, this month demands extra warmth. Be sure to layer up to stay comfortable.

Sunshine in Alt Sankt Johann in December

With about 112 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Alt Sankt Johann in December

December has wind speeds averaging 7 m/s (14 knots). You can expect generally windy conditions with strong breezes affecting daily routines on typical days. As an average, some days have moderate strong winds while others feature more intense gusts that make walking and movement challenging.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Alt Sankt Johann.

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

Alt Sankt Johann Temperature in December

Min Temperature -5°C (23°F)  

Max Temperature 3°C (37°F)  

Chance of Rain 50%  

Precipitation 139 mm (5.5 in)  

Rainy days 15 days  

Humidity 68% *  

Windspeed 7 m/s (14 knots) *  

Sunshine 112 hours *  

Percentage Sunshine *  

* Data from: Säntis (the highest mountain in the Alpstein massif), Switzerland (5 KM, 3 Miles).

What to Wear in Alt Sankt Johann 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. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Alt Sankt Johann in December

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

Swimming

5/10

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 Alt Sankt Johann's climate page.

More climate data for Alt Sankt Johann

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Alt Sankt Johann climate overview or explore weather in Switzerland.