Ireland’s climate is mild for its geographic location, but difficult to predict. The weather might be warm and comfortable in February, or brisk in July. The best way to be prepared is to plan ahead and pack light layers. The area is high in moisture as well and it rains frequently, but an afternoon of sunshine can easily follow a morning of rain. Temperatures approach freezing and sometimes dip below, particularly in winter, however, snow is uncommon.
Most cruises to Ireland are offered April through September, which is also the peak travel season. The busiest time to travel is during the months of July and August, but this period also experiences the warmest weather. Sailings last anywhere from five to 28 nights in length, and depart from major European cities such as London, Amsterdam or Copenhagen. Most itineraries will include stops in England and Scotland, in addition to Ireland.
If you’re thinking of traveling to Ireland and would like to avoid the summer crowds, travel during the shoulder seasons in the spring (April and May) and in the fall (September and October) will give you more breathing room at historical sights and famous landmarks and possibly save you a few dollars.