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September Weather in Deline, Canada

Last updated: June 18, 2025

In September, the average temperature in Deline, Canada is a cool 7°C (44°F). Expect minimums dipping to -7°C (20°F) and maximums reaching 23°C (74°F). During this month, precipitation totals 27 mm (1.1 in) over 7 days, and a relative humidity of 84% adds to the chilly atmosphere.

September Temperature in Deline

In September in Deline, the average temperature is 7°C (44°F), with maximums reaching 23°C (74°F) and minimums dropping as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures during this time.

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

The chart illustrates September temperature patterns in Deline, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Deline, September typically has an average temperature of 7°C (44°F), with highs reaching up to 23°C (74°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec-10-101174052595544305-7
Data source: Temperature data for Deline 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 Deline

In Deline in September, the precipitation amount is 27 mm (1.1 in) accumulated over 7 days.

September Precipitation Trends in Deline

The chart displays monthly precipitation patterns in Deline, 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 Deline, September typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec161715152340365827262220
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Deline

In Deline in September humidity is 84%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making it uncomfortable for traveling and requiring extra layers to stay warm and dry.

September Average Humidity in Deline

This chart illustrates the average monthly humidity levels in Deline, 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 Deline is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%90%85%78%77%82%82%84%95%98%97%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Deline

In Deline in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Deline, you can check the information here.

Maximum UV Index Levels in Deline for September

The chart shows the monthly maximum UV Index (UVI) for Deline 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 Deline typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112445553211
Data source: Deline 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 Deline Compares to Other Months

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

This table compares monthly weather conditions in Deline, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-24°C (-10°F)16 mm (0.6 inches)94%low
February Weather-23°C (-10°F)17 mm (0.7 inches)92%low
March Weather-17°C (1°F)15 mm (0.6 inches)90%low
April Weather-9°C (17°F)15 mm (0.6 inches)85%moderate
May Weather4°C (40°F)23 mm (0.9 inches)78%moderate
June Weather11°C (52°F)40 mm (1.6 inches)77%moderate
July Weather15°C (59°F)36 mm (1.4 inches)82%moderate
August Weather13°C (56°F)58 mm (2.3 inches)82%moderate
September Weather7°C (44°F)27 mm (1.1 inches)84%moderate
October Weather-1°C (30°F)26 mm (1.0 inches)95%low
November Weather-15°C (5°F)22 mm (0.9 inches)98%low
December Weather-22°C (-7°F)20 mm (0.8 inches)97%low

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