September Weather in Prince George, Canada

Last updated: June 18, 2025

In September, the average temperature in Prince George, Canada hovers around 11°C (52°F). Expect a chilly minimum of -4°C (26°F) and a warm maximum of 27°C (80°F). With an average precipitation of 65 mm (2.5 in) spread over 13 days, don't forget your umbrella! The air feels quite humid, with an average humidity level of 87%, adding to the overall atmosphere of the region.

September Temperature in Prince George

In September in Prince George, the average temperature is 11°C (52°F), with maximums reaching 27°C (80°F) and minimums dipping as low as -4°C (26°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warmer and cooler clothing for their visit.

September Weather in Prince George: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Prince George, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Prince George, September typically has an average temperature of 11°C (52°F), with highs reaching up to 27°C (80°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec211730395358626152393121
Data source: Temperature data for Prince George 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 Prince George

In Prince George in September, the total precipitation amount is 65 mm (2.5 in) over a span of 13 days.

September Precipitation Trends in Prince George

The chart displays monthly precipitation patterns in Prince George, 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 Prince George, September typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec435249344556583965819352
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Prince George

In Prince George in September, humidity is 87%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make your clothes cling uncomfortably, leaving you feeling slightly weighed down while exploring the area.

September Average Humidity in Prince George

This chart illustrates the average monthly humidity levels in Prince George, 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 Prince George is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%91%90%86%83%87%85%87%92%96%97%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Prince George

In Prince George 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 Prince George, you can refer to this Hourly UV Index in Prince George.

Maximum UV Index Levels in Prince George for September

The chart shows the monthly maximum UV Index (UVI) for Prince George 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 Prince George typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124577886421
Data source: Prince George 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 Prince George Compares to Other Months

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

This table compares monthly weather conditions in Prince George, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)43 mm (1.7 inches)93%low
February Weather-8°C (17°F)52 mm (2.1 inches)93%low
March Weather-1°C (31°F)49 mm (1.9 inches)91%moderate
April Weather4°C (39°F)34 mm (1.3 inches)89%moderate
May Weather11°C (53°F)45 mm (1.8 inches)86%high
June Weather15°C (58°F)56 mm (2.2 inches)83%high
July Weather17°C (62°F)58 mm (2.3 inches)87%very high
August Weather16°C (61°F)39 mm (1.6 inches)85%very high
September Weather11°C (52°F)65 mm (2.5 inches)87%high
October Weather4°C (39°F)81 mm (3.2 inches)92%moderate
November Weather-1°C (31°F)93 mm (3.7 inches)96%low
December Weather-6°C (22°F)52 mm (2.1 inches)97%low

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