San Ildefonso, in Central Luzon, Philippines, is home to roughly 65,700 people in the Asia/Manila time zone at 15.1°N latitude.
In 2025, San Ildefonso recorded an average annual temperature of 81°F. The hottest temperatures reached 101°F in April; the coolest were 70°F in December. Total precipitation for the year was 114 inches, with the wettest month being July.
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