In December, Hamilton typically sees daytime highs of 22.1°C and overnight lows around 11.4°C. Compared to the annual average high of 19.0°C, December runs +3.1°C.
December in Hamilton averages a daytime high of 22.1°C and an overnight low of 11.4°C.
December runs +3.1°C compared to Hamilton's annual average high of 19.0°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 22.1°C and cooler evenings around 11.4°C.