About Santa Cruz, Guanacaste Province's Climate & Weather History

With a population of around 12,300, Santa Cruz sits in Guanacaste Province, Costa Rica. The city operates in the America/Costa Rica time zone.

In 2025, Santa Cruz recorded an average annual temperature of 81°F. The hottest temperatures reached 99°F in March; the coolest were 71°F in December. Total precipitation for the year was 92 inches, with the wettest month being October.