In December, Formosa typically sees daytime highs of 32.8°C and overnight lows around 20.7°C. Compared to the annual average high of 28.5°C, December runs +4.4°C.
December in Formosa averages a daytime high of 32.8°C and an overnight low of 20.7°C.
December runs +4.4°C compared to Formosa's annual average high of 28.5°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 32.8°C and cooler evenings around 20.7°C.