St. Moritz
December
Weather in St. Moritz for December 2025
Your guide to St. Moritz weather in December - trends and predictions
Expect heavy snowfall in St. Moritz during December, with an average of 20 snowy days.
In general, the average temperature in St. Moritz at the beginning of December is -1.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 2 °C by the end of December.
Snow Forecast ❄️
Temperatures
11
Dry days
0
Rainy days
20
Snow days
0°/-12°
Temperatures
12 km/h
Avg max wind
77 %
Avg humidity
St. Moritz in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  2° | 2 1° | 3  -4° | 4  -6° | 5  -3° | 6  -2° | 7 -1° |
| 8 -4° | 9 -2° | 10 -2° | 11 -0° | 12  1° | 13  -1° | 14 -3° |
| 15 -5° | 16  2° | 17 4° | 18 3° | 19 2° | 20 -3° | 21 -2° |
| 22 -2° | 23 -5° | 24 -3° | 25 1° | 26  3° | 27 3° | 28 2° |
| 29 2° | 30 2° | 31 1° |
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Temperatures trend during December in St. Moritz
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Heavy snow | 2° /-8° | 32 mm | 27.2 cm | |
| 2 Dec. | Heavy snow | 1° /-15° | 21.5 mm | 18.2 cm | |
| 3 Dec. | Freezing fog | -4° /-20° | 1.1 mm | 0.8 cm | |
| 4 Dec. | Moderate snow | -6° /-18° | 0.4 mm | 0.3 cm | |
| 5 Dec. | Moderate or heavy snow showers | -3° /-16° | 0.6 mm | 0.5 cm | |
| 6 Dec. | Light snow | -2° /-17° | 2.9 mm | 2 cm | |
| 7 Dec. | Freezing fog | -1° /-19° | 0.8 mm | 0.5 cm | |
| 8 Dec. | Moderate snow | -4° /-13° | 4.3 mm | 3.1 cm | |
| 9 Dec. | Freezing fog | -2° /-12° | 1.9 mm | 1.5 cm | |
| 10 Dec. | Moderate or heavy snow showers | -2° /-13° | 2.6 mm | 2.2 cm | |
| 11 Dec. | Heavy snow | 0° /-9° | 4 mm | 3 cm | |
| 12 Dec. | Patchy moderate snow | 1° /-11° | 0.6 mm | 0.5 cm | |
| 13 Dec. | Moderate or heavy snow with thunder | -1° /-10° | 9.4 mm | 8 cm | |
| 14 Dec. | Moderate or heavy snow showers | -3° /-15° | 0.6 mm | 0.5 cm | |
| 15 Dec. | Moderate snow | -5° /-17° | 0.7 mm | 0.4 cm | |
| 16 Dec. | Sunny | 2° /-15° | 0 mm | 0 cm | |
| 17 Dec. | Sunny | 4° /-9° | 0 mm | 0 cm | |
| 18 Dec. | Sunny | 3° /-8° | 0 mm | 0 cm | |
| 19 Dec. | Sunny | 2° /-8° | 3.6 mm | 2.6 cm | |
| 20 Dec. | Light snow | -3° /-15° | 2.1 mm | 1.5 cm | |
| 21 Dec. | Heavy snow | -2° /-16° | 2.2 mm | 1.9 cm | |
| 22 Dec. | Moderate or heavy snow showers | -2° /-11° | 17.5 mm | 14 cm | |
| 23 Dec. | Light snow | -5° /-15° | 3.7 mm | 2.7 cm | |
| 24 Dec. | Sunny | -3° /-17° | 0.4 mm | 0.3 cm | |
| 25 Dec. | Freezing fog | 1° /-14° | 0 mm | 0 cm | |
| 26 Dec. | Partly cloudy | 3° /-12° | 0 mm | 0 cm | |
| 27 Dec. | Partly cloudy | 3° /-10° | 0 mm | 0 cm | |
| 28 Dec. | Partly cloudy | 2° /-10° | 0 mm | 0 cm | |
| 29 Dec. | Sunny | 2° /-11° | 0 mm | 0 cm | |
| 30 Dec. | Freezing fog | 2° /-11° | 0 mm | 0 cm | |
| 31 Dec. | Heavy snow | 1° /-10° | 4.6 mm | 3.8 cm | |
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Important Notice
Our weather forecast for St. Moritz in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St. Moritz forecast closer to your planned date for the most up-to-date weather information.
St. Moritz in December - FAQ
What are the expected maximum and minimum temperatures in St. Moritz during December?
Brace for cold days with temperatures not exceeding 0° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in St. Moritz during December?
Significant rainfall exceeding 135 mm is expected in St. Moritz during December, occurring over more than 0 days. Preparing for wet conditions is recommended in your planning.
Will it snow in St. Moritz in December 2025?
St. Moritz experiences an average snowfall of 111.85 cm during December, occurring over 20 days.
What are the typical wind conditions in St. Moritz during December?
The average wind speed in St. Moritz during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
St. Moritz snow forecast December 2025
Track daily snowfall levels and discover St. Moritz’s snowy potential this December ❄️
December rainfall patterns in St. Moritz
Explore the daily rainfall trends and prepare for St. Moritzs December weather 💧
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