December weather forecast
San Carlos de Bariloche, Argentina

In December, San Carlos de Bariloche marks the full onset of summer, with temperatures and daylight continuing their upward trend. The weather stands out for its warmth and the abundance of sunshine. The reduction in rainfall that started in November prevails, resulting in a noticeably drier period. However, despite the sunny conditions, the UV index climbs to its annual high, necessitating adequate measures to guard against sun exposure. As the year ends, conditions prevail into January, marking the continuation of the summer weather.

Temperature

San Carlos de Bariloche experiences a minor temperature shift with the start of December, with average high-temperatures moving from a comfortable 17°C (62.6°F) in November to an agreeable 20°C (68°F). With a significant daily temperature differential, San Carlos de Bariloche's nighttime temperature in December falls to an average of 6°C (42.8°F).

Rainfall

In San Carlos de Bariloche, in December, it is raining for 5 days, with typically 47mm (1.85") of accumulated precipitation. In San Carlos de Bariloche, during the entire year, the rain falls for 109 days and collects up to 1060mm (41.73") of precipitation.

Daylight

With an average of 15h and 6min of daylight, December has the longest days of the year in San Carlos de Bariloche, Argentina.
On the first day of December, sunrise is at 06:06 and sunset at 21:02. On the last day of the month, sunrise is at 06:16 and sunset at 21:21 -03.

Sunshine

January and December, with an average of 11h of sunshine, are months with the most sunshine in San Carlos de Bariloche.

UV index

December is the month with the highest UV index in San Carlos de Bariloche, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 12 during December leads to these advisories:
Put into effect every precaution of importance, unprotected skin and eyes may get burns swiftly. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.