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May Weather in Swan River, Canada

Last updated: June 18, 2025

In Swan River, Canada, the average temperature in May hovers around 10°C (50°F). During this time, expect a minimum drop to -6°C (21°F) and occasional peaks reaching up to 31°C (89°F). Precipitation amounts to 37 mm (1.4 in) spread across about 7 days, and the average humidity sits at a comfortable 73%.

May Temperature in Swan River

In May in Swan River, the average temperature is 10°C (50°F), with maximums soaring to 31°C (89°F) and minimums plunging as low as -6°C (21°F). Be prepared for a wide range of temperatures during your visit, making it essential to pack accordingly for both warm and chilly conditions.

May Weather in Swan River: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Swan River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swan River, May typically has an average temperature of 10°C (50°F), with highs reaching up to 31°C (89°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec522032506166625237199
Data source: Temperature data for Swan River 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 Swan River

In Swan River in May, the precipitation amount is measured at 37 mm (1.4 in) over a span of 7 days.

May Precipitation Trends in Swan River

The chart displays monthly precipitation patterns in Swan River, 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 Swan River, May typically receives around 37 mm (1.4 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec261633273799676042413522
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Swan River

In Swan River in May, humidity is 73%. With an average temperature of 10°C (50°F), this humidity feels like a chilly, damp embrace, making it essential to layer your clothing while traveling, as the moisture in the air can quickly chill you to the bone.

May Average Humidity in Swan River

This chart illustrates the average monthly humidity levels in Swan River, 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 Swan River is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%94%92%82%73%69%77%78%76%80%88%95%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Swan River

In Swan River 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 Swan River.

Maximum UV Index Levels in Swan River for May

The chart shows the monthly maximum UV Index (UVI) for Swan River 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 Swan River typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234688876421
Data source: Swan River 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 Swan River Compares to Other Months

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

This table compares monthly weather conditions in Swan River, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-15°C (6°F)25 mm (1.0 inches)93%low
February Weather-17°C (2°F)16 mm (0.6 inches)94%moderate
March Weather-7°C (20°F)33 mm (1.3 inches)92%moderate
April Weather0°C (33°F)27 mm (1.1 inches)82%high
May Weather10°C (50°F)37 mm (1.4 inches)73%very high
June Weather16°C (61°F)99 mm (3.9 inches)69%very high
July Weather19°C (66°F)67 mm (2.6 inches)77%very high
August Weather17°C (62°F)60 mm (2.4 inches)78%high
September Weather11°C (52°F)41 mm (1.6 inches)76%high
October Weather3°C (37°F)41 mm (1.6 inches)80%moderate
November Weather-7°C (19°F)35 mm (1.4 inches)88%low
December Weather-13°C (10°F)21 mm (0.8 inches)95%low

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