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May Weather in Port Alberni, Canada

Last updated: June 18, 2025

In May, the average temperature in Port Alberni, Canada hovers around 12°C (53°F), with a minimum of 2°C (35°F) and a pleasant maximum of 25°C (77°F). Expect 67 mm (2.6 in) of precipitation spread over 10 days, contributing to an average humidity of 81%. Be prepared for a varied climate that combines cool breezes with occasional showers!

May Temperature in Port Alberni

In May in Port Alberni, the average temperature is 12°C (53°F). The maximum can reach 25°C (77°F), while the minimum can drop to as low as 2°C (35°F). This range makes it a great time for travelers to pack layers, ensuring comfort for both warm days and cooler evenings.

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

The chart illustrates May 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, May typically has an average temperature of 12°C (53°F), with highs reaching up to 25°C (77°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec393741465358636458494339
Data source: Temperature data for Port Alberni 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.

May Precipitation in Port Alberni

In Port Alberni in May, the total precipitation amount is 67 mm (2.6 in) over a period of 10 days.

May Precipitation Trends in Port Alberni

The chart displays monthly precipitation patterns in Port Alberni, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Port Alberni, May typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec28616116014267672742157200323274
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Port Alberni

In Port Alberni in May, humidity is 81%. With an average temperature of 12°C (53°F), this humidity feels like a chilly dampness enveloping you, making outdoor activities uncomfortable and requiring layers to stay warm while you explore.

May Average Humidity in Port Alberni

This chart illustrates the average monthly humidity levels in Port Alberni, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Port Alberni is approximately 81%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Port Alberni

In Port Alberni in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Port Alberni.

Maximum UV Index Levels in Port Alberni for May

The chart shows the monthly maximum UV Index (UVI) for Port Alberni in May, 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 May, the maximum UV index in Port Alberni typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987521
Data source: Port Alberni May 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 May 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 May’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 May’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

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