December Weather in Rio Grande

Last updated: March 2, 2024

The weather in Rio Grande, United States, during December is characterized by an average temperature of 6°C (44°F). Highs can soar to 15°C (60°F), while lows may dip to -2°C (28°F). Typically, the humidity level in Rio Grande throughout December hovers around 84%.

-2°C (28°F)

Minimum temperature

6°C (44°F)

Average temperature

15°C (60°F)

Maximum temperature

84%

Humidity

Precipitation and Sunshine hours

In December, Rio Grande averages 118 mm (4.6 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 9 hours 28 minutes of daylight, with the sun shining for approximately 6 hours 4 minutes each day. Additionally, there is a 37% probability of sunny days during this period.

118 mm (4.6 inches)

Precipitation

11 rainy days

Rainy days

6 hours 4 minutes

Sunshine hours

37%

Chance of sun

UV Index

In December, the UV Index in Rio Grande reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 1 2 3 3 2 2 1 1 0 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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