In December, Barcelona typically sees daytime highs of 30.2°C and overnight lows around 21.4°C. Compared to the annual average high of 31.4°C, December runs -1.2°C.
December in Barcelona averages a daytime high of 30.2°C and an overnight low of 21.4°C.
December runs -1.2°C compared to Barcelona's annual average high of 31.4°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 30.2°C and cooler evenings around 21.4°C.