In December, Jamaica typically sees daytime highs of 5.6°C and overnight lows around -1.1°C. Compared to the annual average high of 16.0°C, December runs -10.4°C.
December in Jamaica averages a daytime high of 5.6°C and an overnight low of -1.1°C.
December runs -10.4°C compared to Jamaica's annual average high of 16.0°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 5.6°C and cooler evenings around -1.1°C.