In December, High Wycombe typically sees daytime highs of 7.0°C and overnight lows around 1.8°C. Compared to the annual average high of 13.2°C, December runs -6.2°C.
December in High Wycombe averages a daytime high of 7.0°C and an overnight low of 1.8°C.
December runs -6.2°C compared to High Wycombe's annual average high of 13.2°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 7.0°C and cooler evenings around 1.8°C.