With a population of around 2,600, Donegal sits in Ulster, Ireland. The city operates in the GMT/IST time zone.
In 2025, Donegal recorded an average annual temperature of 50°F. The hottest temperatures reached 82°F in July; the coolest were 25°F in January. Total precipitation for the year was 78 inches, with the wettest month being September. Snowfall for the year totaled approximately 4 inches.
View current conditions and forecast for Donegal · More cities in Ulster