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Hourly Forecast
Daylight Hours
07:33
Sunrise
19:13
Sunset
Moon
Waxing Gibbous
18:49
Moonrise
05:43
Moonset
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View stargazing scoreWeather in Donegal today, September 25, 2026
Donegal looks damp on September 25, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. The first half of the day looks overcast, as cloud amounts reach about 100% around 08:00. Brighter weather, if it comes, waits until later.
Temperatures climb from an overnight low near 12°C toward a daytime high of about 15°C. Moisture in the air spans 69%-88%, with the highest values around 23:00. Airflow remains manageable, reaching about 6.7 km/h around 13:00.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 15:00. Outdoor plans may still want a flexible backup. Expect visibility near 34.4 km, with poorer spells close to 27.8 km. Sunrise is at 07:33 and sunset at 19:13, giving 11 hours 39 minutes of sunlight today.
Overall, Donegal on September 25, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 0% and the high sits around 15°C.
Frequently asked questions about weather in Donegal
How warm does it get in Donegal?
The warmest month in Donegal is August, with average high temperatures of 17°C. The average temperature during this period is around 14°C.
How cold does it get in Donegal?
The coldest month in Donegal is January, with average low temperatures of 3°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Donegal?
The wettest month in Donegal is August, with an average of 142mm of precipitation.
What is the driest time of year in Donegal?
The driest month in Donegal is April, with an average of 85mm of precipitation.
