September Weather in Spirit River, Canada

Last updated: June 18, 2025

In September, the average temperature in Spirit River, Canada hovers around 10°C (50°F). This month can see a minimum temperature dipping to -9°C (17°F) and a maximum soaring to 28°C (83°F). Expect 46 mm (1.8 in) of precipitation spread over 9 days, coupled with an average humidity of 80%, creating a unique blend of weather conditions to experience.

September Temperature in Spirit River

In September in Spirit River, the average temperature is 10°C (50°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -9°C (17°F). It's advisable to pack layers for your trip to ensure you're comfortable in varying weather conditions.

September Weather in Spirit River: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Spirit River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Spirit River, September typically has an average temperature of 10°C (50°F), with highs reaching up to 28°C (83°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec13922345159615950372215
Data source: Temperature data for Spirit 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.

September Precipitation in Spirit River

In Spirit River in September, the precipitation amount is 46 mm (1.8 in) over the course of 9 days.

September Precipitation Trends in Spirit River

The chart displays monthly precipitation patterns in Spirit River, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Spirit River, September typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec232731294176905046415124
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Spirit River

In Spirit River in September, humidity is 80%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill enveloping you, making traveling somewhat uncomfortable as it seeps into your clothes and clings to your skin, leaving you longing for a cozy indoor refuge.

September Average Humidity in Spirit River

This chart illustrates the average monthly humidity levels in Spirit River, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Spirit River is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%94%89%85%81%78%84%82%80%86%91%96%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Spirit River

In Spirit River in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Spirit River, you can refer to this Hourly UV Index in Spirit River.

Maximum UV Index Levels in Spirit River for September

The chart shows the monthly maximum UV Index (UVI) for Spirit River in September, 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 September, the maximum UV index in Spirit River typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123677776311
Data source: Spirit River September 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 September Weather in Spirit River Compares to Other Months

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

This table compares monthly weather conditions in Spirit River, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)23 mm (0.9 inches)93%low
February Weather-13°C (9°F)27 mm (1.1 inches)94%low
March Weather-6°C (22°F)31 mm (1.2 inches)89%moderate
April Weather1°C (35°F)29 mm (1.1 inches)85%high
May Weather11°C (51°F)41 mm (1.6 inches)81%high
June Weather15°C (59°F)76 mm (3.0 inches)78%high
July Weather16°C (62°F)90 mm (3.5 inches)84%high
August Weather15°C (60°F)50 mm (2.0 inches)81%high
September Weather10°C (50°F)46 mm (1.8 inches)80%high
October Weather3°C (37°F)40 mm (1.6 inches)86%moderate
November Weather-6°C (22°F)51 mm (2.0 inches)91%low
December Weather-9°C (15°F)24 mm (1.0 inches)96%low

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