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September Weather in Langley, Canada

Last updated: June 18, 2025

In September, the average temperature in Langley, Canada hovers around 16°C (61°F). Expect a minimum of 7°C (45°F) and a maximum soaring to 33°C (91°F). With 149 mm (5.9 in) of precipitation spread over 12 days, staying dry might be a challenge. Humidity levels can be fairly high at 76%, making the air feel a bit more tropical.

September Temperature in Langley

In September in Langley, the average temperature is 16°C (61°F), with maximums reaching 33°C (91°F) and minimums dropping to as low as 7°C (45°F). This variation in temperature makes it advisable to pack layers for your travels.

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

The chart illustrates September temperature patterns in Langley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Langley, September typically has an average temperature of 16°C (61°F), with highs reaching up to 33°C (91°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec403944505661656660514540
Data source: Temperature data for Langley 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 Langley

In Langley in September, the precipitation amount is 149 mm (5.9 in) spread over 12 days.

September Precipitation Trends in Langley

The chart displays monthly precipitation patterns in Langley, 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 Langley, September typically receives around 149 mm (5.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec22016515913573602823149198296238
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Langley

In Langley in September humidity is 76%. With an average temperature of 16°C (61°F), this humidity feels like a warm embrace that makes traveling feel slightly heavy yet refreshing, often prompting you to seek shade or indulge in ice-cold drinks to stay comfortable.

September Average Humidity in Langley

This chart illustrates the average monthly humidity levels in Langley, 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 Langley is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Langley

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

Maximum UV Index Levels in Langley for September

The chart shows the monthly maximum UV Index (UVI) for Langley 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 Langley typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234678986421
Data source: Langley 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 Langley Compares to Other Months

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

This table compares monthly weather conditions in Langley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)220 mm (8.6 inches)86%low
February Weather4°C (39°F)165 mm (6.5 inches)85%moderate
March Weather7°C (45°F)159 mm (6.3 inches)86%moderate
April Weather10°C (50°F)135 mm (5.3 inches)86%high
May Weather13°C (56°F)73 mm (2.9 inches)81%high
June Weather16°C (61°F)60 mm (2.3 inches)83%very high
July Weather18°C (66°F)28 mm (1.1 inches)84%very high
August Weather19°C (66°F)23 mm (0.9 inches)77%very high
September Weather16°C (61°F)149 mm (5.9 inches)76%high
October Weather10°C (51°F)198 mm (7.8 inches)88%moderate
November Weather7°C (45°F)296 mm (11.7 inches)87%low
December Weather4°C (40°F)238 mm (9.4 inches)87%low

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