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September Weather in Killam, Canada

Last updated: June 18, 2025

In September, the average temperature in Killam, Canada hovers around 11°C (52°F). Expect a minimum plunge to -3°C (27°F) and a possible maximum rise to 32°C (90°F). During this month, precipitation is around 35 mm (1.4 in), spread over approximately 8 days, and the air boasts an average humidity of 73%.

September Temperature in Killam

In September in Killam, the average temperature is 11°C (52°F), with maximums reaching 32°C (90°F) and minimums dropping as low as -3°C (27°F). Travelers should be prepared for a wide range of weather conditions during this time.

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

The chart illustrates September temperature patterns in Killam, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Killam, September typically has an average temperature of 11°C (52°F), with highs reaching up to 32°C (90°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec12722365260636152372315
Data source: Temperature data for Killam 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 Killam

In Killam in September, the precipitation amount is 35 mm (1.4 in) over the course of 8 days.

September Precipitation Trends in Killam

The chart displays monthly precipitation patterns in Killam, 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 Killam, September typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec141723255391775736272915
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Killam

In Killam in September humidity is 73%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that creeps into your bones, making outdoor exploration tricky but invigorating, as the cool air and moisture combine to create a refreshing yet slightly uncomfortable atmosphere for traveling.

September Average Humidity in Killam

This chart illustrates the average monthly humidity levels in Killam, 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 Killam is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%92%88%80%73%71%80%78%73%78%82%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Killam

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

Maximum UV Index Levels in Killam for September

The chart shows the monthly maximum UV Index (UVI) for Killam 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 Killam typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234678876421
Data source: Killam 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 Killam Compares to Other Months

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

This table compares monthly weather conditions in Killam, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)14 mm (0.5 inches)89%low
February Weather-14°C (8°F)17 mm (0.7 inches)92%moderate
March Weather-6°C (22°F)23 mm (0.9 inches)88%moderate
April Weather2°C (36°F)25 mm (1.0 inches)80%high
May Weather11°C (53°F)53 mm (2.1 inches)73%high
June Weather16°C (60°F)91 mm (3.6 inches)71%very high
July Weather17°C (64°F)77 mm (3.0 inches)80%very high
August Weather16°C (62°F)57 mm (2.2 inches)78%high
September Weather11°C (52°F)35 mm (1.4 inches)73%high
October Weather3°C (38°F)27 mm (1.1 inches)78%moderate
November Weather-5°C (23°F)29 mm (1.2 inches)82%low
December Weather-10°C (15°F)15 mm (0.6 inches)92%low

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