In December, Orkney typically sees daytime highs of 29.6°C and overnight lows around 15.3°C. Compared to the annual average high of 25.7°C, December runs +3.9°C.
December in Orkney averages a daytime high of 29.6°C and an overnight low of 15.3°C.
December runs +3.9°C compared to Orkney's annual average high of 25.7°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 29.6°C and cooler evenings around 15.3°C.