In December, Speyer typically sees daytime highs of 4.6°C and overnight lows around -0.5°C. Compared to the annual average high of 14.4°C, December runs -9.8°C.
December in Speyer averages a daytime high of 4.6°C and an overnight low of -0.5°C.
December runs -9.8°C compared to Speyer's annual average high of 14.4°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 4.6°C and cooler evenings around -0.5°C.