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December Weather in Prince Rupert, Canada

Last updated: June 18, 2025

In Prince Rupert, Canada, the average temperature in December hovers around 2°C (36°F). Be prepared for a chilly range, with minimums dipping to -21°C (-5°F) and maximums reaching 12°C (54°F). The weather is also quite wet, with an average precipitation of 314 mm (12.4 in) over 20 days of rain, and the air tends to feel quite damp with an average humidity of 87%.

December Temperature in Prince Rupert

In December in Prince Rupert, the average temperature is 2°C (36°F), with maximums reaching 12°C (54°F) and minimums potentially dropping to -21°C (-5°F). It's essential to pack warm clothing and be prepared for cold weather while traveling during this time.

December Weather in Prince Rupert: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Prince Rupert, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Prince Rupert, December typically has an average temperature of 2°C (36°F), with highs reaching up to 12°C (54°F) and lows dropping to around -21°C (-5°F).
JanFebMarAprMayJunJulAugSepOctNovDec353438434953575754464135
Data source: Temperature data for Prince Rupert 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 Prince Rupert

In Prince Rupert in December, the precipitation amount is 314 mm (12.4 in) spread over 20 days.

December Precipitation Trends in Prince Rupert

The chart displays monthly precipitation patterns in Prince Rupert, 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 Prince Rupert, December typically receives around 314 mm (12.4 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec285240277215131171134243256339446314
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Prince Rupert

In Prince Rupert in December, humidity is 87%. With an average temperature of 2°C (36°F), this humidity feels like an unwelcome chill that seeps into your bones, making outdoor exploration feel damp and heavy, and encouraging travelers to seek the warmth of indoor attractions instead.

December Average Humidity in Prince Rupert

This chart illustrates the average monthly humidity levels in Prince Rupert, 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 Prince Rupert is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%85%81%81%90%92%92%91%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Prince Rupert

In Prince Rupert 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 Prince Rupert.

Maximum UV Index Levels in Prince Rupert for December

The chart shows the monthly maximum UV Index (UVI) for Prince Rupert 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 Prince Rupert typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123577875311
Data source: Prince Rupert 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 Prince Rupert Compares to Other Months

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

This table compares monthly weather conditions in Prince Rupert, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)285 mm (11.2 inches)86%low
February Weather1°C (34°F)240 mm (9.4 inches)85%low
March Weather3°C (38°F)277 mm (10.9 inches)84%moderate
April Weather6°C (43°F)215 mm (8.4 inches)85%moderate
May Weather9°C (49°F)131 mm (5.2 inches)81%high
June Weather12°C (53°F)171 mm (6.7 inches)81%high
July Weather14°C (57°F)134 mm (5.3 inches)90%very high
August Weather14°C (57°F)243 mm (9.6 inches)92%high
September Weather12°C (54°F)256 mm (10.1 inches)92%moderate
October Weather8°C (46°F)339 mm (13.3 inches)91%moderate
November Weather5°C (42°F)446 mm (17.5 inches)87%low
December Weather2°C (36°F)314 mm (12.4 inches)87%low

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