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September Weather in Nahanni Butte, Canada

Last updated: June 18, 2025

In September, the average temperature in Nahanni Butte, Canada hovers around 8°C (47°F). However, temperatures can vary significantly, with a minimum plummeting to -9°C (17°F) and a maximum soaring up to 28°C (83°F). Expect 35 mm (1.4 in) of precipitation over the course of 9 days, alongside an average humidity level of 82%.

September Temperature in Nahanni Butte

In September in Nahanni Butte, the average temperature is 8°C (47°F). Maximum temperatures can reach 28°C (83°F), while the minimum can drop to as low as -9°C (17°F). Pack accordingly to enjoy the diverse weather conditions while exploring this destination!

September Weather in Nahanni Butte: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nahanni Butte, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nahanni Butte, September typically has an average temperature of 8°C (47°F), with highs reaching up to 28°C (83°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec-4-310284858615746317-4
Data source: Temperature data for Nahanni Butte 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 Nahanni Butte

In Nahanni Butte in September, the total precipitation amount reaches 35 mm (1.4 in) over the course of 9 days.

September Precipitation Trends in Nahanni Butte

The chart displays monthly precipitation patterns in Nahanni Butte, 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 Nahanni Butte, September typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec23192519371148510936363617
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nahanni Butte

In Nahanni Butte in September humidity is 82%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less enjoyable and requiring extra layers to stay warm and comfortable.

September Average Humidity in Nahanni Butte

This chart illustrates the average monthly humidity levels in Nahanni Butte, 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 Nahanni Butte is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%94%90%86%77%76%80%79%82%93%99%99%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nahanni Butte

In Nahanni Butte in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Nahanni Butte for better planning.

Maximum UV Index Levels in Nahanni Butte for September

The chart shows the monthly maximum UV Index (UVI) for Nahanni Butte 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 Nahanni Butte typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113466664211
Data source: Nahanni Butte 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 Nahanni Butte Compares to Other Months

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

This table compares monthly weather conditions in Nahanni Butte, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-20°C (-4°F)23 mm (0.9 inches)95%low
February Weather-20°C (-3°F)19 mm (0.8 inches)94%low
March Weather-12°C (10°F)25 mm (1.0 inches)90%moderate
April Weather-2°C (29°F)19 mm (0.7 inches)86%moderate
May Weather9°C (49°F)37 mm (1.5 inches)77%high
June Weather14°C (58°F)113 mm (4.5 inches)76%high
July Weather16°C (62°F)84 mm (3.3 inches)80%high
August Weather14°C (58°F)109 mm (4.3 inches)79%high
September Weather8°C (47°F)35 mm (1.4 inches)82%moderate
October Weather0°C (32°F)36 mm (1.4 inches)93%low
November Weather-14°C (7°F)36 mm (1.4 inches)99%low
December Weather-20°C (-3°F)17 mm (0.7 inches)99%low

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