December weather forecast
Stromness, South Georgia and the South Sandwich Islands

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Weather in December

The final month, December, sees a return to snowy conditions in Stromness, with a recorded average of 184mm (7.24") of snowfall. Temperatures dip, presenting the city with an endearing winter ambiance. The rainfall levels tend to increase, signaling frequent showers throughout the month. The daylight shortens, adding to the winter charm as the year comes to a close. A visit to Stromness in December provides a classic winter experience for both the residents and visitors.

Temperature

The transition into December shows a subtle variation to a still wintry 1.9°C (35.4°F) from November's 1.2°C (34.2°F) in the average high-temperature. Night temperatures during December in Stromness experience a slight downturn, averaging a freezing cold -0.1°C (31.8°F).

Humidity

The average relative humidity in December is 90%.

Rainfall

In Stromness, in December, it is raining for 17.8 days, with typically 94mm (3.7") of accumulated precipitation. In Stromness, South Georgia and the South Sandwich Islands, during the entire year, the rain falls for 168.8 days and collects up to 1190mm (46.85") of precipitation.

Snowfall

January through December are months with snowfall in Stromness. In Stromness, in December, during 16.5 snowfall days, 184mm (7.24") of snow is typically accumulated. In Stromness, South Georgia and the South Sandwich Islands, during the entire year, snow falls for 193 days and aggregates up to 3130mm (123.23") of snow.

Daylight

The month with the longest days in Stromness is December, with an average of 17h and 6min of daylight.
On the first day of December in Stromness, South Georgia and the South Sandwich Islands, sunrise is at 03:52 and sunset at 20:39. On the last day of the month, sunrise is at 03:57 and sunset at 21:02 -02.

Sunshine

The average sunshine in December is 5.3h.

UV index

January through December, with an average maximum UV index of 1, are months with the highest UV index in Stromness, South Georgia and the South Sandwich Islands. January through December, with an average maximum UV index of 1, are months with the lowest UV index in Stromness. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 1 transforms into these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Stay sun-safe with clothing that is both closely woven and worn loosely. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.

Frequently asked questions

How cold is it in Stromness in December?

The average high-temperature, in December, in Stromness, is 1.9°C (35.4°F), while the average low-temperature is -0.1°C (31.8°F).

What is the average humidity in December in Stromness?

In December, the average relative humidity is 90%.

How much does it rain in Stromness in December?

In Stromness, during December, the rain falls for 17.8 days and regularly aggregates up to 94mm (3.7") of precipitation.

How many days does it snow in December in Stromness?

In December, it is snowing for 16.5 days. Throughout December, 184mm (7.24") of snow is accumulated.

When are the longest days in Stromness?

With an average of 17h and 6min of daylight, December has the longest days of the year.

How many hours of daylight does Stromness have in December?

In December, the average day length in Stromness, South Georgia and the South Sandwich Islands, is 17h and 4min.

When is the sunrise / sunset in December in Stromness?

In December, on the first day of the month, sunrise is at 03:52 and sunset at 20:39. On the last day of the month, in Stromness, sunrise is at 03:57 and sunset at 21:02 -02.

How many hours of sunshine does Stromness have in December?

In Stromness, South Georgia and the South Sandwich Islands, the average sunshine duration in December is 5.3h.

What is the month with the highest UV index in Stromness?

January through December, with an average maximum UV index of 1, are months with the highest UV index in Stromness, South Georgia and the South Sandwich Islands.

When is the lowest UV index in Stromness?

The months with the lowest UV index in Stromness, South Georgia and the South Sandwich Islands, are January through December, with an average maximum UV index of 1.

What is the UV index intensity in December in Stromness?

In Stromness, South Georgia and the South Sandwich Islands, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Stromness, South Georgia and the South Sandwich Islands

Average temperature in December - Stromness, South Georgia and the South Sandwich Islands
  • Average high temperature in December: 1.9°C

The warmest month (with the highest average high temperature) is February (3.1°C).
The month with the lowest average high temperature is August (-1.6°C).

  • Average low temperature in December: -0.1°C

The month with the highest average low temperature is February (1°C).
The coldest month (with the lowest average low temperature) is August (-4.9°C).

Average pressure in December
Stromness, South Georgia and the South Sandwich Islands

Average pressure in December - Stromness, South Georgia and the South Sandwich Islands
  • Average pressure in December: 992.9mbar

The month with the highest atmospheric pressure is September (1002.1mbar).
The month with the lowest atmospheric pressure is December (992.9mbar).

Average wind speed in December
Stromness, South Georgia and the South Sandwich Islands

Average wind speed in December - Stromness, South Georgia and the South Sandwich Islands
  • Average wind speed in December: 23.5km/h

The windiest month (with the highest average wind speed) is September (25.7km/h).
The calmest month (with the lowest average wind speed) is December (23.5km/h).

Average humidity in December
Stromness, South Georgia and the South Sandwich Islands

Average humidity in December - Stromness, South Georgia and the South Sandwich Islands
  • Average humidity in December: 90%

The months with the highest relative humidity are January and February (91%).
The months with the lowest relative humidity are July and August (87%).

Average rainfall in December
Stromness, South Georgia and the South Sandwich Islands

Average rainfall in December - Stromness, South Georgia and the South Sandwich Islands
  • Average rainfall in December: 94mm

The wettest month (with the highest rainfall) is April (114mm).
The driest month (with the least rainfall) is October (82mm).

Average rainfall days in December
Stromness, South Georgia and the South Sandwich Islands

Average rainfall days in December - Stromness, South Georgia and the South Sandwich Islands
  • Average rainfall days in December: 17.8 days

The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (7.8 days).

Average snowfall in December
Stromness, South Georgia and the South Sandwich Islands

Average snowfall in December - Stromness, South Georgia and the South Sandwich Islands
  • Average snowfall in December: 184mm

The month with the highest snowfall is August (421mm).
The month with the least snowfall is March (125mm).

Average snowfall days in December
Stromness, South Georgia and the South Sandwich Islands

Average snowfall days in December - Stromness, South Georgia and the South Sandwich Islands
  • Average snowfall days in December: 16.5 days

The month with the highest number of snowfall days is August (19 days).
The month with the least snowfall days is February (11.7 days).

Average daylight in December /
Average sunshine in December
Stromness, South Georgia and the South Sandwich Islands

Average daylight in December / Average sunshine in December - Stromness, South Georgia and the South Sandwich Islands
  • Average daylight in December: 17h and 1min

The month with the longest days is December (Average daylight: 17h and 6min).
The month with the shortest days is June (Average daylight: 7h and 24min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is October (Average sunshine: 5h and 48min).
The month with the least sunshine is August (Average sunshine: 3h and 0min).

Average sunshine days in December
Stromness, South Georgia and the South Sandwich Islands

Average sunshine days in December - Stromness, South Georgia and the South Sandwich Islands
  • Average sunshine days in December: 2.2 days

The months with the most sunshine days are September and November (4 days).
The month with the least sunshine days is January (1.1 days).

Average UV index in December
Stromness, South Georgia and the South Sandwich Islands

Average UV index in December - Stromness, South Georgia and the South Sandwich Islands
  • Average UV index in December: 1

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 1).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 1).

Average cloud cover in December
Stromness, South Georgia and the South Sandwich Islands

Average cloud cover in December - Stromness, South Georgia and the South Sandwich Islands
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is October (Cloud cover 66).

Average visibility in December
Stromness, South Georgia and the South Sandwich Islands

Average visibility in December - Stromness, South Georgia and the South Sandwich Islands
  • Average visibility in December: 8km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (8km).
The months with the lowest visibility are July, August and September (7km).

Stromness, South Georgia and the South Sandwich Islands

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