In December, Nanaimo typically sees daytime highs of 6.0°C and overnight lows around 1.0°C. Compared to the annual average high of 13.8°C, December runs -7.7°C.
December in Nanaimo averages a daytime high of 6.0°C and an overnight low of 1.0°C.
December runs -7.7°C compared to Nanaimo's annual average high of 13.8°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 6.0°C and cooler evenings around 1.0°C.