In October, Hamilton typically sees daytime highs of 19.5°C and overnight lows around 6.0°C. Compared to the annual average high of 17.6°C, October runs +1.9°C.
October in Hamilton averages a daytime high of 19.5°C and an overnight low of 6.0°C.
October runs +1.9°C compared to Hamilton's annual average high of 17.6°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 19.5°C and cooler evenings around 6.0°C.