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December Weather in Vancouver, United States

Last updated: June 24, 2025

In December, the average temperature in Vancouver, United States hovers around 5°C (41°F). Expect chilly days with a minimum temperature dipping to -5°C (23°F) and a maximum reaching 15°C (59°F). Be prepared for rainy spells, as the region sees an average precipitation of 224 mm (8.8 in) over 20 days. With an average humidity of 87%, you'll want to bundle up and stay cozy!

December Temperature in Vancouver

In December in Vancouver, the average temperature is 5°C (41°F). The maximum can reach 15°C (59°F), while the minimum can drop as low as -5°C (23°F). It’s advisable to pack layered clothing to stay comfortable while exploring the area.

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

The chart illustrates December temperature patterns in Vancouver, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vancouver, December typically has an average temperature of 5°C (41°F), with highs reaching up to 15°C (59°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec414045505762676963524540
Data source: Temperature data for Vancouver 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 Vancouver

In Vancouver in December, the precipitation amount is 224 mm (8.8 in) spread over a period of 20 days.

December Precipitation Trends in Vancouver

The chart displays monthly precipitation patterns in Vancouver, 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 Vancouver, December typically receives around 224 mm (8.8 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec205205163140736291190149209224
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Vancouver

In Vancouver in December humidity is 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.

December Average Humidity in Vancouver

This chart illustrates the average monthly humidity levels in Vancouver, 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 Vancouver is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Vancouver

In Vancouver in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Vancouver, you can visit Hourly UV Index in Vancouver.

Maximum UV Index Levels in Vancouver for December

The chart shows the monthly maximum UV Index (UVI) for Vancouver 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 Vancouver typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23569101087532
Data source: Vancouver 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 Vancouver Compares to Other Months

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

This table compares monthly weather conditions in Vancouver, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)205 mm (8.1 inches)85%low
February Weather4°C (40°F)205 mm (8.1 inches)84%moderate
March Weather7°C (45°F)163 mm (6.4 inches)85%moderate
April Weather10°C (51°F)140 mm (5.5 inches)83%high
May Weather14°C (57°F)73 mm (2.9 inches)83%very high
June Weather17°C (63°F)62 mm (2.5 inches)83%very high
July Weather20°C (68°F)9 mm (0.3 inches)82%very high
August Weather20°C (69°F)11 mm (0.4 inches)74%very high
September Weather17°C (63°F)90 mm (3.6 inches)71%high
October Weather11°C (52°F)149 mm (5.9 inches)81%moderate
November Weather7°C (46°F)209 mm (8.2 inches)87%moderate
December Weather5°C (41°F)224 mm (8.8 inches)87%low

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