December weather forecastComodoro Rivadavia, Argentina

December

Weather in December

December brings the warmth in full swing to Comodoro Rivadavia, with the year ending on a balmy note. Sea temperatures peak at 13.9°C (57°F), inviting locals and tourists for a dip. With an impressive 15.7h of daylight and an average visibility of 10km (6.2mi), the city makes the most of its summer season. Pleasant weather conditions and longer days make December an optimal time for outdoor exploration in Comodoro Rivadavia.

Temperature

As November transitions into December, the average high-temperature in Comodoro Rivadavia, Argentina, rests at a pleasant 21.2°C (70.2°F), maintaining a close resemblance to the previous month. An average temperature of 13.1°C (55.6°F) is recorded in Comodoro Rivadavia during the nights in December.

Humidity

The months with the lowest humidity in Comodoro Rivadavia are January and December, with an average relative humidity of 42%.

Rainfall

In December, in Comodoro Rivadavia, the rain falls for 5.5 days. Throughout December, 9mm (0.35") of precipitation is accumulated. In Comodoro Rivadavia, during the entire year, the rain falls for 75.9 days and collects up to 144mm (5.67") of precipitation.

Snowfall

January through April, November and December are months without snowfall in Comodoro Rivadavia, Argentina.

Sea temperature

In December, the average sea temperature in Comodoro Rivadavia is 13.9°C (57°F).
Note: You can swim in 13.9°C (57°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C (55.4°F) without it is tough.

Daylight

December has the longest days of the year, with an average of 15h and 42min of daylight.
On the first day of December in Comodoro Rivadavia, sunrise is at 05:35 and sunset at 21:03. On the last day of the month, sunrise is at 05:43 and sunset at 21:23 -03.

Sunshine

December has the most sunshine of the year in Comodoro Rivadavia, Argentina, with an average of 13.4h of sunshine.

UV index

The months with the highest UV index are January, February and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 5 during December leads to these advisories:
Ensure safety - Recommendations to avert sunburn are presented. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

An average high-temperature, in December, in Comodoro Rivadavia, is 21.2°C (70.2°F) and the average low-temperature is 13.1°C (55.6°F).

January and December, with an average relative humidity of 42%, are the least humid months in Comodoro Rivadavia, Argentina.

In Comodoro Rivadavia, Argentina, the average relative humidity in December is 42%.

In December, the rain falls for 5.5 days. Throughout December, 9mm (0.35") of precipitation is accumulated.

January through April, November and December are months without snowfall in Comodoro Rivadavia.

In Comodoro Rivadavia, the average seawater temperature in December is 13.9°C (57°F). Swimming in 13.9°C (57°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.

With an average of 15h and 42min of daylight, December has the longest days of the year in Comodoro Rivadavia, Argentina.

In December, the average day length in Comodoro Rivadavia is 15h and 40min.

In December, on the first day of the month, sunrise is at 05:35 and sunset at 21:03. On the last day of the month, sunrise is at 05:43 and sunset at 21:23 -03.

With an average of 13.4h of sunshine, December has the most sunshine of the year.

The average sunshine duration in December in Comodoro Rivadavia is 13.4h.

January, February and December, with an average maximum UV index of 5, are months with the highest UV index in Comodoro Rivadavia, Argentina.

In Comodoro Rivadavia, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from 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 sea temperature
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Comodoro Rivadavia, Argentina

  • Average high temperature in December: 21.2°C

The warmest month (with the highest average high temperature) is January (22.4°C).
The month with the lowest average high temperature is July (8.2°C).

  • Average low temperature in December: 13.1°C

The month with the highest average low temperature is January (14.6°C).
The coldest month (with the lowest average low temperature) is July (3.5°C).

Average pressure in December
Comodoro Rivadavia, Argentina

  • Average pressure in December: 1005.9mbar

The month with the highest atmospheric pressure is September (1012.9mbar).
The month with the lowest atmospheric pressure is December (1005.9mbar).

Average wind speed in December
Comodoro Rivadavia, Argentina

  • Average wind speed in December: 28.3km/h

The windiest month (with the highest average wind speed) is December (28.3km/h).
The calmest month (with the lowest average wind speed) is September (23.6km/h).

Average humidity in December
Comodoro Rivadavia, Argentina

  • Average humidity in December: 42%

The month with the highest relative humidity is July (65%).
The months with the lowest relative humidity are January and December (42%).

Average rainfall in December
Comodoro Rivadavia, Argentina

  • Average rainfall in December: 9mm

The wettest month (with the highest rainfall) is June (19mm).
The driest month (with the least rainfall) is January (4mm).

Average rainfall days in December
Comodoro Rivadavia, Argentina

  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is September (7.5 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in December
Comodoro Rivadavia, Argentina

  • Average snowfall in December: 0mm

The months with the highest snowfall are June and July (11mm).
The months with the least snowfall are January, February, March, April, November and December (0mm).

Average snowfall days in December
Comodoro Rivadavia, Argentina

  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is July (1.3 days).
The months with the least snowfall days are January, February, March, April, November and December (0 days).

Average sea temperature in December
Comodoro Rivadavia, Argentina

  • Average sea temperature in December: 13.9°C

The best month for swimming (with the highest average sea temperature) is February (16.8°C).
The coldest month (with the lowest average sea temperature) is August (7.9°C).

Average daylight in December /
Average sunshine in December
Comodoro Rivadavia, Argentina

  • Average daylight in December: 15h and 42min

The month with the longest days is December (Average daylight: 15h and 42min).
The month with the shortest days is June (Average daylight: 8h and 42min).

  • Average sunshine in December: 13h and 24min

The month with the most sunshine is December (Average sunshine: 13h and 24min).
The month with the least sunshine is June (Average sunshine: 4h and 24min).

Average sunshine days in December
Comodoro Rivadavia, Argentina

  • Average sunshine days in December: 23.9 days

The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is September (20.2 days).

Average UV index in December
Comodoro Rivadavia, Argentina

  • Average UV index in December: 5

The months with the highest UV index are January, February and December (UV index 5).
The month with the lowest UV index is June (UV index 2).

Average cloud cover in December
Comodoro Rivadavia, Argentina

  • Average cloud cover in December: 22

The month with the most cloud cover is July (Cloud cover 33).
The month with the least cloud cover is January (Cloud cover 17).

Average visibility in December
Comodoro Rivadavia, Argentina

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).