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May Weather in Williams Lake, Canada

Last updated: June 18, 2025

In May, the average temperature in Williams Lake, Canada is a cool 11°C (53°F). During this month, temperatures can dip to a chilly -3°C (28°F) at their lowest and soar to a pleasant 29°C (84°F) at peak. Expect 39 mm (1.5 in) of precipitation over approximately 10 days, with a notably high average humidity of 84%.

May Temperature in Williams Lake

In May in Williams Lake, the average temperature is 11°C (53°F). Maximums can reach 29°C (84°F), while minimums can drop as low as -3°C (28°F). This varied climate makes Williams Lake an ideal destination for travelers looking to experience a range of weather conditions.

May Weather in Williams Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Williams Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williams Lake, May typically has an average temperature of 11°C (53°F), with highs reaching up to 29°C (84°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec201831405258636252393120
Data source: Temperature data for Williams Lake 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 Williams Lake

In Williams Lake in May, the precipitation amount is 39 mm (1.5 in) over a span of 10 days.

May Precipitation Trends in Williams Lake

The chart displays monthly precipitation patterns in Williams Lake, 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 Williams Lake, May typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec304331353946603668735241
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Williams Lake

In Williams Lake in May, humidity is 84%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and requiring extra layers to stay warm while traveling.

May Average Humidity in Williams Lake

This chart illustrates the average monthly humidity levels in Williams Lake, 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 Williams Lake is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%93%90%88%84%80%86%83%83%90%96%97%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Williams Lake

In Williams Lake in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Williams Lake.

Maximum UV Index Levels in Williams Lake for May

The chart shows the monthly maximum UV Index (UVI) for Williams Lake 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 Williams Lake typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234578886421
Data source: Williams Lake 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 Williams Lake Compares to Other Months

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

This table compares monthly weather conditions in Williams Lake, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)30 mm (1.2 inches)94%low
February Weather-8°C (18°F)42 mm (1.7 inches)93%moderate
March Weather-1°C (31°F)31 mm (1.2 inches)90%moderate
April Weather4°C (40°F)35 mm (1.4 inches)88%moderate
May Weather11°C (53°F)39 mm (1.5 inches)84%high
June Weather15°C (58°F)46 mm (1.8 inches)80%very high
July Weather17°C (63°F)60 mm (2.4 inches)86%very high
August Weather17°C (62°F)36 mm (1.4 inches)83%very high
September Weather11°C (53°F)68 mm (2.7 inches)83%high
October Weather4°C (39°F)73 mm (2.9 inches)90%moderate
November Weather0°C (31°F)52 mm (2.1 inches)96%low
December Weather-6°C (21°F)41 mm (1.6 inches)97%low

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