In December, San Juan del Rio typically sees daytime highs of 20.8°C and overnight lows around 4.2°C. Compared to the annual average high of 23.7°C, December runs -2.9°C.
December in San Juan del Rio averages a daytime high of 20.8°C and an overnight low of 4.2°C.
December runs -2.9°C compared to San Juan del Rio's annual average high of 23.7°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 20.8°C and cooler evenings around 4.2°C.