In December, Iwo typically sees daytime highs of 32.9°C and overnight lows around 20.7°C. Compared to the annual average high of 31.4°C, December runs +1.5°C.
December in Iwo averages a daytime high of 32.9°C and an overnight low of 20.7°C.
December runs +1.5°C compared to Iwo's annual average high of 31.4°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 32.9°C and cooler evenings around 20.7°C.