Summerside weather in October 2025

Expect 12°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Summerside in October. Check more long-term weather averages for Summerside in October before you book your next holiday to Prince Edward Island in 2025/2026.

  • 12°C maximum daytime temperature in October in Summerside12
    12°C max day temperature
  • 4 hours of sunshine per day
  • 13 days with some rainfall in October in Summerside13
    13 days with some rainfall
  • 4°C minimum night-time temperature in October in Summerside4
    4°C min night temperature
  • 11 hours of daylight per day in October in Summerside11
    11 hours of daylight per day
  • No heat & humidity in October in Summerside0
    No heat & humidity
  • 97 mm monthly rainfall in October in Summerside97
    97 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in Summerside3
    3 (Moderate) UV index
  • 12°C sea temperature in October in Summerside12
    12°C sea temperature

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The October weather guide for Prince Edward Island (Summerside) 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 warm is it in Summerside in October?

Daytime temperatures usually reach 12°C in Summerside in October, falling to 4°C at night.

How sunny is it in Summerside in October?

There are normally 4 hours of bright sunshine each day in Summerside in October - that's 40% of daylight hours.

How warm is the sea around Summerside in October?

The average sea temperature around Summerside in October is 12°C.

Does it rain in Summerside in October?

There are usually 13 days with some rain in Summerside in October and the average monthly rainfall is 97mm.

Summerside October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:14 17:54
Thursday, 16th October 2025 06:34 17:26
Friday, 31st October 2025 06:56 17:01

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