About Marinha Grande, Leiria's Climate & Weather History

With a population of around 28,900, Marinha Grande sits in Leiria, Portugal. The city operates in the Europe/Lisbon time zone.

In 2025, Marinha Grande recorded an average annual temperature of 61°F. The hottest temperatures reached 98°F in July; the coolest were 33°F in January. Total precipitation for the year was 50 inches, with the wettest month being January.