Saint Merryn Weather & Climate: Best Time to Visit

The climate in Saint Merryn experiences moderate temperature changes, with mild shifts between seasons. Average maximum daytime temperatures range from a pleasant 20°C (68°F) in August, the warmest time of the year, to a chilly 10°C (50°F) during cooler months like February.

At night, you can expect temperatures ranging from 14°C (57°F) in August to around 5°C (41°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Saint Merryn is known for its substantial rainfall, with annual precipitation reaching 1018 mm (40 in). Year-round, Saint Merryn has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 108 mm (4.3 in), and the driest month, May, with 71 mm (2.8 in), is minimal. For more details, please visit our Saint Merryn Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Saint Merryn. While May receives considerable daily sunshine with up to 7.4 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.2 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine