San Martin, in Piura, Peru, is home to roughly 130,000 people in the America/Lima time zone at 5.2°S latitude.
In 2025, San Martin recorded an average annual temperature of 76°F. The hottest temperatures reached 99°F in March; the coolest were 61°F in September. Total precipitation for the year was 12 inches, with the wettest month being March.
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