nomadseason

December Weather in Port Alberni, Canada

Last updated: June 18, 2025

In December, the average temperature in Port Alberni, Canada hovers around 4°C (39°F). While the mercury can dip as low as -10°C (15°F), it may also peak at 12°C (53°F). Expect significant rainfall, with 274 mm (10.8 in) of precipitation spread over 21 days, contributing to a notable average humidity of 87%.

December Temperature in Port Alberni

In December in Port Alberni, the average temperature is 4°C (39°F), with maximums reaching up to 12°C (53°F) and minimums dipping as low as -10°C (15°F). It's advisable for travelers to prepare for chilly weather and dress in layers to stay comfortable.

December Weather in Port Alberni: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Port Alberni, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Alberni, December typically has an average temperature of 4°C (39°F), with highs reaching up to 12°C (53°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec393741465358636458494339
Data source: Temperature data for Port Alberni generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Port Alberni

In Port Alberni in December, the precipitation amount is 274 mm (10.8 in) during a span of 21 days.

December Precipitation Trends in Port Alberni

The chart displays monthly precipitation patterns in Port Alberni, 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 Port Alberni, December typically receives around 274 mm (10.8 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec28616116014267672742157200323274
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Port Alberni

In Port Alberni in December, humidity is 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.

December Average Humidity in Port Alberni

This chart illustrates the average monthly humidity levels in Port Alberni, 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 Port Alberni is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Port Alberni

In Port Alberni 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 Port Alberni.

Maximum UV Index Levels in Port Alberni for December

The chart shows the monthly maximum UV Index (UVI) for Port Alberni 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 Port Alberni typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987521
Data source: Port Alberni 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 Port Alberni Compares to Other Months

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

This table compares monthly weather conditions in Port Alberni, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)286 mm (11.3 inches)86%low
February Weather3°C (37°F)161 mm (6.4 inches)85%moderate
March Weather5°C (41°F)160 mm (6.3 inches)86%moderate
April Weather8°C (46°F)142 mm (5.6 inches)86%high
May Weather12°C (53°F)67 mm (2.6 inches)81%very high
June Weather14°C (58°F)67 mm (2.6 inches)83%very high
July Weather17°C (63°F)27 mm (1.1 inches)84%very high
August Weather18°C (64°F)41 mm (1.6 inches)77%very high
September Weather14°C (58°F)157 mm (6.2 inches)76%high
October Weather9°C (49°F)200 mm (7.9 inches)88%moderate
November Weather6°C (44°F)323 mm (12.7 inches)87%low
December Weather4°C (39°F)274 mm (10.8 inches)87%low

Compare Port Alberni's Climate with Cities Worldwide