Charlottetown weather in September 2025

Expect 18°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Charlottetown in September. Check more long-term weather averages for Charlottetown in September before you book your next holiday to Prince Edward Island in 2025/2026.

  • 18°C maximum daytime temperature in September in Charlottetown18
    18°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Charlottetown12
    12 days with some rainfall
  • 10°C minimum night-time temperature in September in Charlottetown10
    10°C min night temperature
  • 13 hours of daylight per day in September in Charlottetown13
    13 hours of daylight per day
  • No heat & humidity in September in Charlottetown0
    No heat & humidity
  • 90 mm monthly rainfall in September in Charlottetown90
    90 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Charlottetown5
    5 (Moderate) UV index
  • 16°C sea temperature in September in Charlottetown16
    16°C sea temperature

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The September weather guide for Prince Edward Island (Charlottetown) 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 Charlottetown in September?

Daytime temperatures usually reach 18°C in Charlottetown in September, falling to 10°C at night.

How sunny is it in Charlottetown in September?

There are normally 6 hours of bright sunshine each day in Charlottetown in September - that's 45% of daylight hours.

How warm is the sea around Charlottetown in September?

The average sea temperature around Charlottetown in September is 16°C.

Does it rain in Charlottetown in September?

There are usually 12 days with some rain in Charlottetown in September and the average monthly rainfall is 90mm.

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

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

Charlottetown September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:33 18:51
Monday, 15th September 2025 05:51 18:23
Tuesday, 30th September 2025 06:10 17:54

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