In April, Mainz typically sees daytime highs of 14.5°C and overnight lows around 4.3°C. Compared to the annual average high of 14.1°C, April runs +0.4°C.
April in Mainz averages a daytime high of 14.5°C and an overnight low of 4.3°C.
April runs +0.4°C compared to Mainz's annual average high of 14.1°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 14.5°C and cooler evenings around 4.3°C.