What weather risks matter most for ferries, small boats and island trips?
Wind is the risk that decides the day, ahead of rain. Strong winds and gales make ferry operators cancel or delay sailings, and a big Atlantic swell can make a small boat crossing rough, or impossible, even on a day that looks manageable from the harbour wall. Fog is the second risk, cutting visibility and slowing schedules, and in winter the short daylight squeezes the timetable further. Heavy rain matters mostly ashore, through flooded approach roads. Build the trip to absorb it: never put an island day the night before an international flight, keep a mainland plan in reserve, and check the operator's own sailing updates on the morning of travel. The operator's decision is the final word, and it overrides any general forecast, including this one.
Useful pages: The best time to visit Ireland · Irish weather, month by month · What to wear · Weather in Ireland · Experiencing the Irish coastline · Ireland's national parks · Outdoor adventures in Ireland · Travel notices · Ireland photography tips · Ireland weather guide
Sources
- Met Éireann: weather warning definitions, forecast and marine forecast guidance, met.ie
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