In December, Sumber typically sees daytime highs of 29.1°C and overnight lows around 20.9°C. Compared to the annual average high of 29.4°C, December runs -0.3°C.
December in Sumber averages a daytime high of 29.1°C and an overnight low of 20.9°C.
December runs -0.3°C compared to Sumber's annual average high of 29.4°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 29.1°C and cooler evenings around 20.9°C.