Ottawa weather in October 2025

Expect 55°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Ottawa in October. Check more long-term weather averages for Ottawa in October before you book your next holiday to Ontario in 2025/2026.

  • 55°F maximum daytime temperature in October in Ottawa55
    55°F max day temperature
  • 4 hours of sunshine per day
  • 12 days with some rainfall in October in Ottawa12
    12 days with some rainfall
  • 39°F minimum night-time temperature in October in Ottawa39
    39°F min night temperature
  • 11 hours of daylight per day in October in Ottawa11
    11 hours of daylight per day
  • No heat & humidity in October in Ottawa0
    No heat & humidity
  • 2.8 inches monthly rainfall in October in Ottawa2.8
    2.8 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in Ottawa3
    3 (Moderate) UV index

More about Ottawa

Ottawa by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ontario

  • Explore latest sale offers on holidays in 2024/2025
  • Filter deals by continent, star rating & holiday type
  • Including Dubai, Caribbean, North America, Asia & Pacific

TravelbagHoliday deal finder

The October weather guide for Ontario (Ottawa) 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)  |  Imperial (°F)

Back to top

More about Canada

How warm is it in Ottawa in October?

Daytime temperatures usually reach 55°F in Ottawa in October, falling to 39°F at night.

How sunny is it in Ottawa in October?

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

Does it rain in Ottawa in October?

There are usually 12 days with some rain in Ottawa in October and the average monthly rainfall is 2.8 inches.

Ottawa October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:01 17:42
Thursday, 16th October 2025 06:21 17:15
Friday, 31st October 2025 06:41 16:51

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^