About Derrybeg, Ulster's Climate & Weather History

With a population of around 1,600, Derrybeg sits in Ulster, Ireland. The city operates in the GMT/IST time zone.

In 2025, Derrybeg recorded an average annual temperature of 51°F. The hottest temperatures reached 82°F in July; the coolest were 28°F in January. Total precipitation for the year was 72 inches, with the wettest month being October. Snowfall for the year totaled approximately 7 inches.