In December, Santander typically sees daytime highs of 11.5°C and overnight lows around 5.1°C. Compared to the annual average high of 16.8°C, December runs -5.3°C.
December in Santander averages a daytime high of 11.5°C and an overnight low of 5.1°C.
December runs -5.3°C compared to Santander's annual average high of 16.8°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 11.5°C and cooler evenings around 5.1°C.