December weather forecastSankt Gallen, Austria

December

Weather in December

December, the first month of the winter in Sankt Gallen, is also a wintry month, with an average temperature varying between 1.5°C (34.7°F) and -4.1°C (24.6°F).

Temperature

A shift in Sankt Gallen's weather is observed as November turns into December, with the average high temperature reducing from a frosty 7.4°C (45.3°F) to a wintry 1.5°C (34.7°F). In December, the nighttime temperature lowers to an average of -4.1°C (24.6°F).

Humidity

In December, the average relative humidity is 86%.

Rainfall

In Sankt Gallen, in December, it is raining for 13 days, with typically 76mm (2.99") of accumulated precipitation. In Sankt Gallen, during the entire year, the rain falls for 184.1 days and collects up to 861mm (33.9") of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 9.6 days. Throughout December, 217mm (8.54") of snow is accumulated. In Sankt Gallen, during the entire year, snow falls for 49.6 days and aggregates up to 1079mm (42.48") of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 07:29 and sunset at 16:11. On the last day of December, sunrise is at 07:49 and sunset at 16:19 CET.

Sunshine

The average sunshine in December is 5h.

UV index

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. When the Sun is at its strongest around midday, find shade and limit exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

The average high-temperature and low-temperature in Sankt Gallen during December are 1.5°C (34.7°F) and -4.1°C (24.6°F) respectively.

The average relative humidity in December is 86%.

In Sankt Gallen, during December, the rain falls for 13 days and regularly aggregates up to 76mm (2.99") of precipitation.

In December, it is snowing for 9.6 days. Throughout December, 217mm (8.54") of snow is accumulated.

The month with the shortest days is December, with an average of 8h and 30min of daylight.

The average day length in December in Sankt Gallen is 8h and 30min.

On the first day of December, sunrise is at 07:29 and sunset at 16:11. On the last day of the month, sunrise is at 07:49 and sunset at 16:19 CET.

In December, the average sunshine duration is 5h.

In December, the average daily maximum UV index in Sankt Gallen is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sankt Gallen, Austria

  • Average high temperature in December: 1.5°C

The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (0.2°C).

  • Average low temperature in December: -4.1°C

The month with the highest average low temperature is August (10.1°C).
The coldest months (with the lowest average low temperature) are January and February (-6.2°C).

Average pressure in December
Sankt Gallen, Austria

  • Average pressure in December: 1020.5mbar

The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is May (1015.5mbar).

Average wind speed in December
Sankt Gallen, Austria

  • Average wind speed in December: 7.2km/h

The windiest month (with the highest average wind speed) is March (7.5km/h).
The calmest month (with the lowest average wind speed) is August (5.4km/h).

Average humidity in December
Sankt Gallen, Austria

  • Average humidity in December: 86%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is August (77%).

Average rainfall in December
Sankt Gallen, Austria

  • Average rainfall in December: 76mm

The wettest month (with the highest rainfall) is May (111mm).
The driest month (with the least rainfall) is April (45mm).

Average rainfall days in December
Sankt Gallen, Austria

  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is May (22.8 days).
The month with the least rainy days is February (9.1 days).

Average snowfall in December
Sankt Gallen, Austria

  • Average snowfall in December: 217mm

The month with the highest snowfall is January (385mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Sankt Gallen, Austria

  • Average snowfall days in December: 9.6 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Sankt Gallen, Austria

  • Average daylight in December: 8h and 30min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days in December
Sankt Gallen, Austria

  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is October (16.4 days).
The month with the least sunshine days is May (6.2 days).

Average UV index in December
Sankt Gallen, Austria

  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Sankt Gallen, Austria

  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Sankt Gallen, Austria

  • Average visibility in December: 7km

The months with the highest visibility are April, May, June, July and August (8km).
The months with the lowest visibility are January and February (6km).