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

Weather in December

December, the first month of the summer, in Stromness, is still a cold month, with temperature in the range of an average high of 1.9°C (35.4°F) and an average low of -0.1°C (31.8°F).

Temperature

In December, the average high-temperature is practically the same as in November - a still cold 1.9°C (35.4°F). In December, the average low-temperature is -0.1°C (31.8°F).

Humidity

The average relative humidity in December is 90%.

Rainfall

In Stromness, during December, the rain falls for 17.8 days and regularly aggregates up to 94mm (3.7") of precipitation. Throughout the year, there are 168.8 rainfall days, and 1190mm (46.85") of precipitation is accumulated.

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, during the entire year, snow falls for 193 days, and aggregates up to 3130mm (123.23") of snow.

Daylight

December has the longest days of the year, with an average of 17.1h of daylight.

Sunshine

In December, the average sunshine in Stromness 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. Months with the lowest UV index in Stromness are January through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Stromness?

In Stromness, South Georgia and the South Sandwich Islands, the average relative humidity in December is 90%.

How many days does it rain in December in Stromness?

In Stromness, South Georgia and the South Sandwich Islands, 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 Stromness, South Georgia and the South Sandwich Islands, in December, during 16.5 snowfall days, 184mm (7.24") of snow is typically accumulated.

When are the longest days in Stromness?

The month with the longest days is December, with an average of 17.1h of daylight.

What is the average length of the day in December in Stromness?

In Stromness, South Georgia and the South Sandwich Islands, the average length of the day in December is 17.1h.

How long on average sun shines in December in Stromness?

In December, the average sunshine in Stromness 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.

What are the months with the lowest UV index in Stromness?

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.

How high is the UV index in December in Stromness?

In December, the average daily maximum UV index in Stromness is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.

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).

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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).

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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).

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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%

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

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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).

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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).

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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).

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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).

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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: 17.1h

The month with the longest days is December (Average daylight: 17.1h).
The month with the shortest days is June (Average daylight: 7.4h).

  • Average sunshine in December: 5.3h

The month with the most sunshine is October (Average sunshine: 5.8h).
The month with the least sunshine is August (Average sunshine: 3h).

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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

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

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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

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

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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).

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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

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

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