Yarmouth weather in September 2025

Expect daytime maximum temperatures of 18°C in Yarmouth, Nova Scotia in September based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 90 mm of rainfall in the month.

  • 18°C maximum daytime temperature in September in Yarmouth18
    18°C max day temperature
  • 6 hours of sunshine per day
  • 9 days with some rainfall in September in Yarmouth9
    9 days with some rainfall
  • 9°C minimum night-time temperature in September in Yarmouth9
    9°C min night temperature
  • 12 hours of daylight per day in September in Yarmouth12
    12 hours of daylight per day
  • No heat & humidity in September in Yarmouth0
    No heat & humidity
  • 90 mm monthly rainfall in September in Yarmouth90
    90 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Yarmouth6
    6 (High) UV index
  • 12°C sea temperature in September in Yarmouth12
    12°C sea temperature

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The September weather guide for Nova Scotia (Yarmouth) 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 Yarmouth in September?

Daytime temperatures usually reach 18°C in Yarmouth in September, falling to 9°C at night.

How sunny is it in Yarmouth in September?

There are normally 6 hours of bright sunshine each day in Yarmouth in September - that's 47% of daylight hours.

How warm is the sea around Yarmouth in September?

The average sea temperature around Yarmouth in September is 12°C.

Does it rain in Yarmouth in September?

There are usually 9 days with some rain in Yarmouth in September and the average monthly rainfall is 90mm.

What is the chance of a hurricane in Yarmouth in September?

On average less than 1 day in September in Yarmouth is likely to be affected by the passage of one or more tropical storms.

Yarmouth September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:48 19:00
Monday, 15th September 2025 06:04 18:34
Tuesday, 30th September 2025 06:21 18:07

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