Portstewart Weather & Climate: Best Time to Visit

The weather in Portstewart changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a moderate 17°C (63°F) in August to a chilly 9°C (48°F) in the coolest month, February.

Nights vary from 13°C (55°F) in August to around 5°C (41°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Portstewart experiences significant rainfall throughout the year, averaging 1341 mm (53 in) of precipitation annually. Portstewart offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month November (145 mm (5.7 in)) and the driest month May (79 mm (3.1 in)) is not too significant. For more details, please visit our Portstewart Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Portstewart serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 6.8 hours of sunshine daily, and embrace the darker days in December, offering only 1.3 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine