With a population of around 3,200, Castel Frentano sits in Abruzzo, Italy. The city operates in the Central European time zone.
In 2025, Castel Frentano recorded an average annual temperature of 58°F. The hottest temperatures reached 91°F in July; the coolest were 30°F in March. Total precipitation for the year was 56 inches, with the wettest month being March.
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