September Weather in West Kelowna, Canada

Last updated: June 18, 2025

In West Kelowna, Canada, the average temperature in September hovers around 14°C (57°F). Daily temperatures can range from a chilly 1°C (35°F) to a warm 30°C (85°F). During this month, expect about 59 mm (2.3 in) of precipitation spread over 10 days, contributing to an average humidity level of 74%. Prepare accordingly for a variety of weather!

September Temperature in West Kelowna

In September in West Kelowna, the average temperature is 14°C (57°F). The maximum can reach 30°C (85°F), and the minimum can be as low as 1°C (35°F). This climate variation makes it essential for travelers to pack accordingly, ensuring comfort for both warm and cool moments during their visit.

September Weather in West Kelowna: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in West Kelowna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In West Kelowna, September typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (85°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec272534415257646557443629
Data source: Temperature data for West Kelowna 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 West Kelowna

In West Kelowna in September, the precipitation amount is 59 mm (2.3 in) over the course of 10 days.

September Precipitation Trends in West Kelowna

The chart displays monthly precipitation patterns in West Kelowna, 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 West Kelowna, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec676365614840201259809992
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in West Kelowna

In West Kelowna in September, humidity is 74%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making it slightly uncomfortable for traveling, as you may find yourself quickly sweating and in need of frequent breaks to cool down.

September Average Humidity in West Kelowna

This chart illustrates the average monthly humidity levels in West Kelowna, 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 West Kelowna is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%91%89%86%82%81%84%75%74%85%88%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in West Kelowna

In West Kelowna in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in West Kelowna.

Maximum UV Index Levels in West Kelowna for September

The chart shows the monthly maximum UV Index (UVI) for West Kelowna 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 West Kelowna typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987421
Data source: West Kelowna 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 West Kelowna Compares to Other Months

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

This table compares monthly weather conditions in West Kelowna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (28°F)67 mm (2.6 inches)90%low
February Weather-4°C (25°F)63 mm (2.5 inches)91%moderate
March Weather1°C (34°F)65 mm (2.6 inches)89%moderate
April Weather5°C (42°F)61 mm (2.4 inches)85%high
May Weather11°C (52°F)48 mm (1.9 inches)82%very high
June Weather14°C (57°F)40 mm (1.6 inches)81%very high
July Weather18°C (65°F)20 mm (0.8 inches)84%very high
August Weather19°C (66°F)12 mm (0.5 inches)75%very high
September Weather14°C (57°F)59 mm (2.3 inches)74%high
October Weather7°C (44°F)80 mm (3.1 inches)85%moderate
November Weather2°C (36°F)99 mm (3.9 inches)88%low
December Weather-1°C (30°F)92 mm (3.6 inches)93%low

Compare West Kelowna's Climate with Cities Worldwide