Weather in Ushuaia in December 2025
Average weather
Average temperature in Ushuaia in December
The expected average maximum temperature in December is +57°F with a maximum of +70°F and a minimum of +36°F.
The average maximum temperature goes up 16% by the end of the month, compared with the beginning of the month, from +54°F to +59°F.
Is Ushuaia warm or cold in December?
Ushuaia is typically mild in December.
Maximum temperatures go up compared to the previous month from +54°F to +57°F. The minimum temperature also goes up from +41°F to +45°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
December is one of the warmest months in Ushuaia, here is the comparison with other months:
Climate in Ushuaia in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +54°F | +57°F | +59°F | ||||
| Min. temperature | ||||||
| +27°F | +32°F | +36°F | ||||
| Max. temperature | ||||||
| +75°F | +77°F | +79°F | ||||
| Rainfall | ||||||
| 75 mm | 97 mm | 103 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 77% | 76% | 76% | ||||
| Air pressure | ||||||
| 997 HPa | 997 HPa | 997 HPa | ||||
| Sunny days | ||||||
| 1 | 0 | 0 | ||||
| Cloudy days | ||||||
| 5 | 4 | 3 | ||||
| Rainy days | ||||||
| 24 | 27 | 27 | ||||
| Snowy days | ||||||
| 1 | 0 | 0 | ||||
December weather is still as ok as in November. It’s getting warmer as December arrives. The average maximum temperature goes up from +54°F to +57°F during the day. Prepare for more rain. Average rainfall goes from 75 mm to 97 mm. It feels drier, as humidity decreases from 77% to 76%. The average wind speed doesn’t change much during December, staying around 4 m/s. The days becoming less sunny, going from 1 sunny days in November to 0 in December.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 7 m/s getting up to 15 m/s which is quite strong. The wind will cause branches to move and ground debris to fly around.
The average wind speed in Ushuaia is gradually increasing during December, going from 3 m/s to 10 m/s over the course of the month.
Rain
How was the weather last December in Ushuaia?
Climate Change Over the Years
The climate in Ushuaia in December has not changed that much over the last 43 years.
The average temperature was the lowest in 1986 (+47°F) and the highest in 1998 (+52°F). The driest year was 2002 with only 618 mm of rainfall, and the wettest year was 2006 with 878 mm.
FAQ
Is December a good time to visit Ushuaia?
Can you sunbathe in Ushuaia in December?
Is Ushuaia rainy in December?
Is it sunny in Ushuaia in December?
Other cities in Argentina
Monthly weather in Ushuaia
Source of the data
For this page, we’ve looked at the typical weather in Ushuaia, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.