With a population of around 15,500, Montalvo sits in Los Rios, Ecuador. The city operates in the America/Guayaquil time zone.
In 2025, Montalvo recorded an average annual temperature of 77°F. The hottest temperatures reached 90°F in March; the coolest were 68°F in August. Total precipitation for the year was 157 inches, with the wettest month being February.
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