In December, Swindon typically sees daytime highs of 7.0°C and overnight lows around 1.9°C. Compared to the annual average high of 12.9°C, December runs -6.0°C.
December in Swindon averages a daytime high of 7.0°C and an overnight low of 1.9°C.
December runs -6.0°C compared to Swindon's annual average high of 12.9°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 7.0°C and cooler evenings around 1.9°C.