North Bay weather in September 2025

Expect daytime maximum temperatures of 18°C in North Bay in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 107 mm of rainfall in the month.

  • 18°C maximum daytime temperature in September in North Bay18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in September in North Bay12
    12 days with some rainfall
  • 8°C minimum night-time temperature in September in North Bay8
    8°C min night temperature
  • 13 hours of daylight per day in September in North Bay13
    13 hours of daylight per day
  • No heat & humidity in September in North Bay0
    No heat & humidity
  • 107 mm monthly rainfall in September in North Bay107
    107 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in North Bay5
    5 (Moderate) UV index

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The September weather guide for Ontario (North Bay) 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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How hot is it in North Bay in September?

Daytime temperatures usually reach 18°C in North Bay in September, falling to 8°C at night.

How sunny is it in North Bay in September?

There are normally 5 hours of bright sunshine each day in North Bay in September - that's 40% of daylight hours.

Does it rain in North Bay in September?

There are usually 12 days with some rain in North Bay in September and the average monthly rainfall is 107mm.

North Bay September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:39 18:56
Monday, 15th September 2025 05:56 18:29
Tuesday, 30th September 2025 06:15 17:59

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