Portmellon Weather & Climate: Best Time to Visit

In Portmellon, seasonal changes bring about a moderate variation in temperatures. 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

On average, Portmellon receives a reasonable amount of rainfall, with an annual precipitation of 965 mm (38 in). Year-round, Portmellon has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 98 mm (3.9 in), and the driest month, September, with 66 mm (2.6 in), is minimal. For more details, please visit our Portmellon 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 Portmellon. 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