December Weather in Mattawa

Last updated: March 2, 2024

The weather in Mattawa, Canada, during December is characterized by an average temperature of -7°C (19°F). Highs can soar to 7°C (46°F), while lows may dip to -26°C (-14°F). Typically, the humidity level in Mattawa throughout December hovers around 94%.

-26°C (-14°F)

Minimum temperature

-7°C (19°F)

Average temperature

7°C (46°F)

Maximum temperature

94%

Humidity

Precipitation and Sunshine hours

In December, Mattawa averages 76 mm (3.0 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 8 hours 39 minutes of daylight, with the sun shining for approximately 3 hours 42 minutes each day. Additionally, there is a 17% probability of sunny days during this period.

76 mm (3.0 inches)

Precipitation

14 rainy days

Rainy days

3 hours 42 minutes

Sunshine hours

17%

Chance of sun

UV Index

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

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