December Weather in Santa Clara

Last updated: March 2, 2024

The weather in Santa Clara, United States, during December is characterized by an average temperature of 14°C (57°F). Highs can soar to 28°C (83°F), while lows may dip to -1°C (31°F). Typically, the humidity level in Santa Clara throughout December hovers around 86%.

-1°C (31°F)

Minimum temperature

14°C (57°F)

Average temperature

28°C (83°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In December, Santa Clara averages 59 mm (2.3 inches) of rainfall, typically over the course of 7 rainy days. The month enjoys an average of 10 hours 16 minutes of daylight, with the sun shining for approximately 7 hours 7 minutes each day. Additionally, there is a 37% probability of sunny days during this period.

59 mm (2.3 inches)

Precipitation

7 rainy days

Rainy days

7 hours 7 minutes

Sunshine hours

37%

Chance of sun

UV Index

In December, the UV Index in Santa Clara reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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 0 1 2 3 4 5 5 4 2 1 1 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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