In December, Oakville typically sees daytime highs of 1.7°C and overnight lows around -5.5°C. Compared to the annual average high of 13.2°C, December runs -11.4°C.
December in Oakville averages a daytime high of 1.7°C and an overnight low of -5.5°C.
December runs -11.4°C compared to Oakville's annual average high of 13.2°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 1.7°C and cooler evenings around -5.5°C.