In December, Olongapo typically sees daytime highs of 29.6°C and overnight lows around 21.5°C. Compared to the annual average high of 30.5°C, December runs -0.9°C.
December in Olongapo averages a daytime high of 29.6°C and an overnight low of 21.5°C.
December runs -0.9°C compared to Olongapo's annual average high of 30.5°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 29.6°C and cooler evenings around 21.5°C.