In December, Guaiba typically sees daytime highs of 29.3°C and overnight lows around 18.0°C. Compared to the annual average high of 24.8°C, December runs +4.5°C.
December in Guaiba averages a daytime high of 29.3°C and an overnight low of 18.0°C.
December runs +4.5°C compared to Guaiba's annual average high of 24.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 29.3°C and cooler evenings around 18.0°C.