About La Fortuna, Alajuela Province's Climate & Weather History

With a population of around 3,000, La Fortuna sits in Alajuela Province, Costa Rica. The city operates in the America/Costa Rica time zone.

In 2025, La Fortuna recorded an average annual temperature of 75°F. The hottest temperatures reached 89°F in October; the coolest were 63°F in March. Total precipitation for the year was 165 inches, with the wettest month being January.