December Weather in San Guillermo

Last updated: March 2, 2024

The weather in San Guillermo, Mexico, during December is characterized by an average temperature of 11°C (51°F). Highs can soar to 25°C (78°F), while lows may dip to -3°C (26°F). Typically, the humidity level in San Guillermo throughout December hovers around 84%.

-3°C (26°F)

Minimum temperature

11°C (51°F)

Average temperature

25°C (78°F)

Maximum temperature

84%

Humidity

Precipitation and Sunshine hours

In December, San Guillermo averages 18 mm (0.7 inches) of rainfall, typically over the course of 2 rainy days. The month enjoys an average of 10 hours 20 minutes of daylight, with the sun shining for approximately 8 hours 34 minutes each day. Additionally, there is a 49% probability of sunny days during this period.

18 mm (0.7 inches)

Precipitation

2 rainy days

Rainy days

8 hours 34 minutes

Sunshine hours

49%

Chance of sun

UV Index

In December, the UV Index in San Guillermo reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 25 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 2 4 6 6 5 4 2 1 1 0 0
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

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