December weather forecast
Punta Arenas, Chile

Closing the year, December almost feels like a celebration of the weather diversity Punta Arenas has seen in the past months. Despite the approach of summer, occasional bouts of rain continue to refresh the landscapes. However, the weather is typically warm, making it enjoyable for both residents and tourists alike. Longer daylight hours, peaking 16.9 hours on average, bring in joyous longest days of the year. With high temperatures rising to 13.5°C (56.3°F), the last month of the year signifies the return to another climatic cycle, wrapping up the diverse weather experience of Punta Arenas.

Temperature

Punta Arenas's weather in December indicates an average high-temperature of a mild 13.5°C (56.3°F), nearly consistent with the 12.2°C (54°F) of November. Punta Arenas records an average low of 6°C (42.8°F) throughout the nights in December.

Humidity

January, November and December, with an average relative humidity of 72%, are the least humid months in Punta Arenas.

Rainfall

In Punta Arenas, in December, during 14 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Punta Arenas, during the entire year, the rain falls for 153 days and collects up to 395mm (15.55") of precipitation.

Sea temperature

In Punta Arenas, in December, the average water temperature is 8.8°C (47.8°F).
Note: Staying in 8.8°C (47.8°F) waters for just a few moments at 13°C (55.4°F) can be harrowing, and below 10°C (50°F) poses breathing and cold shock risks, depending on individual tolerance.

Daylight

December has the longest days of the year in Punta Arenas, with an average of 16h and 54min of daylight.
On the first day of December, sunrise is at 05:15 and sunset at 21:50. On the last day of the month, sunrise is at 05:21 and sunset at 22:12 -03.

Sunshine

In December, the average sunshine is 7.5h.

UV index

The month with the highest UV index is December, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 8 during December translates into the following directions:
Without proper safety measures, skin and eyes can be quickly harmed. Be sure to protect yourself. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.