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Hamilton weather in October 2025
Expect 14°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Hamilton in October. Check more long-term weather averages for Hamilton in October before you book your next holiday to Ontario in 2025/2026.
- 1414°C max day temperature
- 5 hours of sunshine per day
- 1111 days with some rainfall
- 55°C min night temperature
- 1111 hours of daylight per day
- 0No heat & humidity
- 7070 mm of monthly rainfall
- 33 (Moderate) UV index
- 1414°C sea temperature
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Recommended for Ontario
The October weather guide for Ontario (Hamilton) 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)
More about Canada
How warm is it in Hamilton in October?
Daytime temperatures usually reach 14°C in Hamilton in October, falling to 5°C at night.
How sunny is it in Hamilton in October?
There are normally 5 hours of bright sunshine each day in Hamilton in October - that's 42% of daylight hours.
How warm is the sea around Hamilton in October?
The average sea temperature around Hamilton in October is 14°C.
Does it rain in Hamilton in October?
There are usually 11 days with some rain in Hamilton in October and the average monthly rainfall is 70mm.
Hamilton October sunrise & sunset times
Browse the sunrise and sunset times for Hamilton in October 2025. Select a month to view Hamilton sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Wednesday, 1st October 2025 | 06:17 | 18:00 |
Thursday, 16th October 2025 | 06:35 | 17:34 |
Friday, 31st October 2025 | 06:54 | 17:12 |
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