Weather in Ireland in October

In October, Ireland transitions into autumn, experiencing cooler temperatures, increased rainfall, moderate winds, and shorter daylight hours.

Overview of the Weather in Ireland in October

• Temperature: Average daily temperatures range from lows of 6°C (43°F) to highs of 13°C (55°F).
• Rainfall: Varies by region; for example, Dublin averages 76 mm (3 inches) over 10 days, while Galway sees about 127 mm (5 inches) over 16 days.
• Wind Speed: October experiences moderate winds, with average speeds around 24 km/h (15 mph).
• Daylight Hours: Approximately 10 to 11 hours per day; sunrise around 7:30 AM, sunset near 6:30 PM at the beginning of the month, with daylight decreasing as the month progresses.

October Weather in Ireland: A Closer Look

Temperature

October in Ireland brings cooler conditions, with average temperatures ranging from 6°C (43°F) to 13°C (55°F). Coastal areas, influenced by the Atlantic Ocean, tend to be milder, while inland regions may experience slightly cooler temperatures, especially during the night.

Rainfall

Rainfall increases across Ireland in October. Eastern regions like Dublin receive about 76 mm (3 inches) over 10 days, making them relatively drier. In contrast, western areas such as Galway experience higher rainfall, averaging 127 mm (5 inches) over 16 days during the month.

Wind Speed

October experiences moderate winds, with average speeds around 24 km/h (15 mph). Coastal regions, especially along the west, may encounter stronger gusts due to Atlantic weather systems.

Daylight Hours

Daylight decreases in October, with approximately 10 to 11 hours of light daily. The sun typically rises around 7:30 AM and sets near 6:30 PM at the beginning of the month, with daylight hours shortening as winter approaches.

Ireland vs Northern Ireland Weather in October 2025

While both regions share similar climates, subtle differences exist:

• Temperature: Northern Ireland’s average temperatures are slightly lower, with daily averages around 10°C (50°F), compared to Ireland’s average of 11°C (52°F).
• Rainfall: Northern Ireland experiences marginally higher rainfall, averaging 90 mm (3.5 inches) in October, compared to Dublin’s 76 mm (3 inches).
• Wind: Both regions experience moderate winds in October, with coastal areas encountering higher gusts.
• Daylight: Daylight hours are similar, with both regions experiencing about 10 to 11 hours of daylight during October.

In summary, while Ireland and Northern Ireland share comparable October weather patterns, Northern Ireland tends to be slightly cooler and wetter.