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September Weather in Atikokan, Canada

Last updated: June 18, 2025

In Atikokan, Canada, the average temperature in September hovers around 13°C (56°F). Daily conditions can vary, with minimums dipping to -1°C (30°F) and maximums soaring to 27°C (81°F). Expect moderate rainfall, with 144 mm (5.7 in) spread over 15 days, and a notable average humidity of 73%, creating a distinct climate that's both refreshing and slightly damp.

September Temperature in Atikokan

In September in Atikokan, the average temperature is 13°C (56°F). Maximums can reach 27°C (81°F), while minimums can dip as low as -1°C (30°F). This variation makes it essential for travelers to pack layers to comfortably enjoy all that Atikokan has to offer.

September Weather in Atikokan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Atikokan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Atikokan, September typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (81°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec7623344961676555422613
Data source: Temperature data for Atikokan 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 Atikokan

In Atikokan in September, the precipitation amount is 144 mm (5.7 in) during a span of 15 days.

September Precipitation Trends in Atikokan

The chart displays monthly precipitation patterns in Atikokan, 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 Atikokan, September typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec26312951498479101144934848
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Atikokan

In Atikokan in September humidity is 73%. With an average temperature of 13°C (56°F), this humidity feels like a cool, damp embrace that can be quite refreshing yet may require a light jacket for comfort while exploring the outdoors.

September Average Humidity in Atikokan

This chart illustrates the average monthly humidity levels in Atikokan, 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 Atikokan is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%96%93%90%75%66%62%67%73%82%90%96%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Atikokan

In Atikokan in September, 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 Atikokan.

Maximum UV Index Levels in Atikokan for September

The chart shows the monthly maximum UV Index (UVI) for Atikokan 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 Atikokan typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789887421
Data source: Atikokan 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 Atikokan Compares to Other Months

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

This table compares monthly weather conditions in Atikokan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-14°C (7°F)26 mm (1.0 inches)96%low
February Weather-14°C (7°F)31 mm (1.2 inches)96%moderate
March Weather-5°C (23°F)29 mm (1.1 inches)93%moderate
April Weather1°C (34°F)51 mm (2.0 inches)90%high
May Weather9°C (49°F)49 mm (1.9 inches)75%very high
June Weather16°C (61°F)84 mm (3.3 inches)66%very high
July Weather20°C (68°F)79 mm (3.1 inches)62%very high
August Weather18°C (65°F)101 mm (4.0 inches)67%very high
September Weather13°C (56°F)144 mm (5.7 inches)73%high
October Weather6°C (43°F)93 mm (3.7 inches)82%moderate
November Weather-3°C (26°F)48 mm (1.9 inches)90%low
December Weather-10°C (14°F)48 mm (1.9 inches)96%low

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