nomadseason

May Weather in Chilliwack, Canada

Last updated: June 18, 2025

In May, the average temperature in Chilliwack, Canada hovers around 11°C (52°F). Temperatures can range from a chilly 0°C (33°F) to a warm 28°C (82°F), offering a diverse climate experience. Expect 103 mm (4.1 in) of precipitation spread over 14 days, contributing to an average humidity of 82%. Perfect for enjoying the rich and refreshing atmosphere of the season!

May Temperature in Chilliwack

In May in Chilliwack, the average temperature is 11°C (52°F). Maximum temperatures can reach 28°C (82°F), while minimums can drop as low as 0°C (33°F). Be prepared for a range of temperatures, perfect for layering your travel attire.

May Weather in Chilliwack: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Chilliwack, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chilliwack, May typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (82°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec323037435256616256453832
Data source: Temperature data for Chilliwack 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.

May Precipitation in Chilliwack

In Chilliwack in May, the precipitation amount is 103 mm (4.1 in) distributed over a period of 14 days.

May Precipitation Trends in Chilliwack

The chart displays monthly precipitation patterns in Chilliwack, 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 Chilliwack, May typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec305272236181103965642187292435346
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Chilliwack

In Chilliwack in May, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.

May Average Humidity in Chilliwack

This chart illustrates the average monthly humidity levels in Chilliwack, 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 Chilliwack is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%88%86%82%82%85%77%76%88%88%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Chilliwack

In Chilliwack 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 Chilliwack.

Maximum UV Index Levels in Chilliwack for May

The chart shows the monthly maximum UV Index (UVI) for Chilliwack 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 Chilliwack typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Chilliwack 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 Chilliwack Compares to Other Months

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

This table compares monthly weather conditions in Chilliwack, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)305 mm (12.0 inches)87%low
February Weather-1°C (30°F)272 mm (10.7 inches)86%moderate
March Weather3°C (37°F)236 mm (9.3 inches)88%moderate
April Weather6°C (43°F)181 mm (7.1 inches)86%high
May Weather11°C (52°F)103 mm (4.1 inches)82%very high
June Weather13°C (56°F)95 mm (3.8 inches)82%very high
July Weather16°C (62°F)56 mm (2.2 inches)85%very high
August Weather17°C (62°F)42 mm (1.7 inches)77%very high
September Weather13°C (56°F)187 mm (7.4 inches)76%high
October Weather7°C (45°F)292 mm (11.5 inches)88%moderate
November Weather4°C (39°F)435 mm (17.1 inches)88%low
December Weather0°C (33°F)346 mm (13.6 inches)89%low

Compare Chilliwack's Climate with Cities Worldwide