December Weather in Santiago

Last updated: March 2, 2024

The weather in Santiago, Chile, during December is characterized by an average temperature of 21°C (70°F). Highs can soar to 33°C (91°F), while lows may dip to 11°C (52°F). Typically, the humidity level in Santiago throughout December hovers around 39%.

11°C (52°F)

Minimum temperature

21°C (70°F)

Average temperature

33°C (91°F)

Maximum temperature

39%

Humidity

Precipitation and Sunshine hours

In December, Santiago averages 3 mm (0.1 inches) of rainfall, typically over the course of 0 rainy days. The month enjoys an average of 14 hours 19 minutes of daylight, with the sun shining for approximately 13 hours 12 minutes each day. Additionally, there is a 89% probability of sunny days during this period.

3 mm (0.1 inches)

Precipitation

0 rainy days

Rainy days

13 hours 12 minutes

Sunshine hours

89%

Chance of sun

UV Index

In December, the UV Index in Santiago reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 3 6 9 12 14 14 12 9 6 3 1
Exposure Low Moderate High VeryHigh Extreme VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 25 min 30 min 45 min

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