With a population of around 22,500, Gumaca sits in Calabarzon, Philippines. The city operates in the Asia/Manila time zone.
In 2025, Gumaca recorded an average annual temperature of 80°F. The hottest temperatures reached 97°F in May; the coolest were 73°F in November. Total precipitation for the year was 104 inches, with the wettest month being September.
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