San Marcelino is a city of approximately 18,700 people in Central Luzon, Philippines. Located in the Asia/Manila time zone at 15°N latitude.
In 2025, San Marcelino recorded an average annual temperature of 81°F. The hottest temperatures reached 99°F in April; the coolest were 67°F in December. Total precipitation for the year was 130 inches, with the wettest month being July.
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