In December, San Luis Rio Colorado typically sees daytime highs of 20.5°C and overnight lows around 4.8°C. Compared to the annual average high of 31.0°C, December runs -10.5°C.
December in San Luis Rio Colorado averages a daytime high of 20.5°C and an overnight low of 4.8°C.
December runs -10.5°C compared to San Luis Rio Colorado's annual average high of 31.0°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 20.5°C and cooler evenings around 4.8°C.