In December, Sig typically sees daytime highs of 16.6°C and overnight lows around 7.2°C. Compared to the annual average high of 23.5°C, December runs -6.9°C.
December in Sig averages a daytime high of 16.6°C and an overnight low of 7.2°C.
December runs -6.9°C compared to Sig's annual average high of 23.5°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 16.6°C and cooler evenings around 7.2°C.