In December, Cayenne typically sees daytime highs of 29.5°C and overnight lows around 22.7°C. Compared to the annual average high of 30.0°C, December runs -0.5°C.
December in Cayenne averages a daytime high of 29.5°C and an overnight low of 22.7°C.
December runs -0.5°C compared to Cayenne's annual average high of 30.0°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 29.5°C and cooler evenings around 22.7°C.