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December Weather in Rivers, Canada

Last updated: June 18, 2025

In December, the average temperature in Rivers, Canada hovers around -12°C (11°F). Expect frigid extremes, where minimum temperatures can plummet to -39°C (-38°F), while the maximum can reach a milder 5°C (42°F). Precipitation is fairly light, with an average of 20 mm (0.8 in) over 5 days, and you can anticipate a high average humidity of 92%.

December Temperature in Rivers

In December in Rivers, the average temperature is -12°C (11°F). The maximum can reach 5°C (42°F), while the minimum can drop as low as -39°C (-38°F). Travelers should be prepared for extremely cold weather conditions and dress warmly when visiting during this time.

December Weather in Rivers: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rivers, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rivers, December typically has an average temperature of -12°C (11°F), with highs reaching up to 5°C (42°F) and lows dropping to around -39°C (-38°F).
JanFebMarAprMayJunJulAugSepOctNovDec5221345263686454392211
Data source: Temperature data for Rivers generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Rivers

In Rivers in December, the precipitation amount is 20 mm (0.8 in) over a period of 5 days.

December Precipitation Trends in Rivers

The chart displays monthly precipitation patterns in Rivers, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Rivers, December typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec141225252880516564382520
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rivers

In Rivers in December humidity is 92%. With an average temperature of -12°C (11°F), this humidity feels like a biting chill that makes traveling outdoors quite uncomfortable, as the dampness seeps into your clothes and chills you to the bone.

December Average Humidity in Rivers

This chart illustrates the average monthly humidity levels in Rivers, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Rivers is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%91%87%78%73%71%76%77%71%75%84%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rivers

In Rivers in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Rivers.

Maximum UV Index Levels in Rivers for December

The chart shows the monthly maximum UV Index (UVI) for Rivers in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Rivers typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245789886421
Data source: Rivers December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Rivers Compares to Other Months

Weather in Rivers varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rivers, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Rivers, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-15°C (5°F)14 mm (0.6 inches)89%low
February Weather-17°C (2°F)12 mm (0.5 inches)91%moderate
March Weather-6°C (21°F)25 mm (1.0 inches)87%moderate
April Weather1°C (35°F)25 mm (1.0 inches)78%high
May Weather11°C (52°F)28 mm (1.1 inches)73%very high
June Weather17°C (63°F)80 mm (3.2 inches)71%very high
July Weather20°C (68°F)51 mm (2.0 inches)76%very high
August Weather18°C (64°F)65 mm (2.6 inches)77%very high
September Weather12°C (55°F)64 mm (2.5 inches)71%high
October Weather4°C (39°F)38 mm (1.5 inches)75%moderate
November Weather-6°C (22°F)25 mm (1.0 inches)84%low
December Weather-12°C (11°F)20 mm (0.8 inches)92%low

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