Penticton weather in September 2025

Expect 21°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Penticton in September. Check more long-term weather averages for Penticton in September before you book your next holiday to British Columbia in 2025/2026.

  • 21°C maximum daytime temperature in September in Penticton21
    21°C max day temperature
  • 7 hours of sunshine per day
  • 7 days with some rainfall in September in Penticton7
    7 days with some rainfall
  • 6°C minimum night-time temperature in September in Penticton6
    6°C min night temperature
  • 13 hours of daylight per day in September in Penticton13
    13 hours of daylight per day
  • No heat & humidity in September in Penticton0
    No heat & humidity
  • 23 mm monthly rainfall in September in Penticton23
    23 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Penticton5
    5 (Moderate) UV index

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The September weather guide for British Columbia (Penticton) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Canada

How hot is it in Penticton in September?

Daytime temperatures usually reach 21°C in Penticton in September, falling to 6°C at night.

How sunny is it in Penticton in September?

There are normally 7 hours of bright sunshine each day in Penticton in September - that's 54% of daylight hours.

Does it rain in Penticton in September?

There are usually 7 days with some rain in Penticton in September and the average monthly rainfall is 23mm.

Penticton September sunrise & sunset times

Browse the sunrise and sunset times for Penticton in September 2025. Select a month to view Penticton sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:15 18:41
Monday, 15th September 2025 05:35 18:11
Tuesday, 30th September 2025 05:57 17:38

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