Ushuaia
Argentina
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Ushuaia, Argentina

December, the first month of the summer, in Ushuaia, is a moderate month, with temperature in the range of an average high of 13.4°C (56.1°F) and an average low of 4.9°C (40.8°F).

Temperature

In Ushuaia, the average high-temperature is almost the same as in November - a moderate 13.4°C (56.1°F). In Ushuaia, in December, the average low-temperature is 4.9°C (40.8°F).

Humidity

In Ushuaia, Argentina, the average relative humidity in December is 74%.

Rainfall

In December, in Ushuaia, the rain falls for 14 days. Throughout December, 42.5mm (1.7") of precipitation is accumulated. Throughout the year, there are 151 rainfall days, and 529.7mm (20.9") of precipitation is accumulated.

Snowfall

January through December are months with snowfall in Ushuaia. In December, snow falls for 1 days. In Ushuaia, during the entire year, snow falls for 49.4 days.

Sea temperature

In December, the average sea temperature in Ushuaia is 7°C (44.6°F).
Note: Swimming in 7°C (44.6°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

December has the longest days of the year in Ushuaia, with an average of 17.2h of daylight.

Sunshine

The average sunshine in December is 5.4h.

UV index

Months with the highest UV index are January and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Ushuaia?

In Ushuaia, in December, the average high-temperature is 13.4°C (56.1°F), and the average low-temperature is 4.9°C (40.8°F).

What is the average humidity in December in Ushuaia?

The average relative humidity in December in Ushuaia is 74%.

How many days does it rain in December in Ushuaia?

In Ushuaia, in December, it is raining for 14 days, with typically 42.5mm (1.7") of accumulated precipitation.

How many days does it snow in December in Ushuaia?

In Ushuaia, Argentina, during December, snow falls for 1 days.

What is the water temperature in December in Ushuaia?

In Ushuaia, Argentina, the average seawater temperature in December is 7°C (44.6°F). Swimming in 7°C (44.6°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

When are the longest days in Ushuaia?

December has the longest days of the year in Ushuaia, with an average of 17.2h of daylight.

How many hours of daylight does Ushuaia have in December?

In December, the average length of the day in Ushuaia is 17.2h.

How long on average sun shines in December in Ushuaia?

The average sunshine in December in Ushuaia is 5.4h.

When is the highest UV index in Ushuaia?

Months with the highest UV index in Ushuaia are January and December, with an average maximum UV index of 7.

How high is the UV index in December in Ushuaia?

In December, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.
Average temperature in December - Ushuaia, Argentina
  • Average high temperature in December: 13.4°C

The warmest month (with the highest average high temperature) is January (13.9°C).
The month with the lowest average high temperature is July (4.2°C).

  • Average low temperature in December: 4.9°C

The month with the highest average low temperature is January (5.4°C).
The coldest month (with the lowest average low temperature) is July (-1.7°C).

Average humidity in December - Ushuaia, Argentina
  • Average humidity in December: 74%

Months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (72%).

Average rainfall in December - Ushuaia, Argentina
  • Average rainfall in December: 42.5mm

The wettest month (with the highest rainfall) is April (56.1mm).
The driest month (with the lowest rainfall) is November (34.6mm).

Average rainfall days in December - Ushuaia, Argentina
  • Average rainfall days in December: 14 days

Months with the highest number of rainy days are January, March and December (14 days).
The month with the lowest number of rainy days is July (11 days).

Average snowfall days in December - Ushuaia, Argentina
  • Average snowfall days in December: 1 days

The month with the highest number of snowfall days is August (9 days).
The month with the lowest number of snowfall days is February (0.1 days).

Average sea temperature in December - Ushuaia, Argentina
  • Average sea temperature in December: 7°C

Best months for swimming (with the highest average sea temperature) are January, February, March and April (8°C).
Coldest months (with the lowest average sea temperature) are July, August, September and October (6°C).

Average daylight in December / Average sunshine in December - Ushuaia, Argentina
  • Average daylight in December: 17.2h

The month with the longest days is December (Average daylight: 17.2h).
The month with shortest days is June (Average daylight: 7.3h).

  • Average sunshine in December: 5.4h

The month with most sunshine is November (Average sunshine: 6h).
The month with least sunshine is June (Average sunshine: 1.4h).

Average UV index in December - Ushuaia, Argentina
  • Average UV index in December: 7

Months with the highest UV index are January and December (UV index 7).
Months with the lowest UV index are June and July (UV index 0).