With a population of around 47,500, Alajuela sits in Alajuela Province, Costa Rica. The city operates in the America/Costa Rica time zone.
In 2025, Alajuela recorded an average annual temperature of 71°F. The hottest temperatures reached 91°F in March; the coolest were 57°F in December. Total precipitation for the year was 149 inches, with the wettest month being October.
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