About Sullana, Piura's Climate & Weather History

With a population of around 161,000, Sullana sits in Piura, Peru. The city operates in the America/Lima time zone.

In 2025, Sullana recorded an average annual temperature of 76°F. The hottest temperatures reached 100°F in March; the coolest were 61°F in September. Total precipitation for the year was 18 inches, with the wettest month being March.