Speak to an Irishman (or woman for that matter) and they’ll tell you it’s always a good time to visit Dublin and in a way, they’re right. Dublin is a lively city no matter when you visit; you’ll always find plenty going on. The summer months from May to August are busiest months for Dublin travel. Accommodations should be booked well in advance when considering a Dublin vacation during this time.
Winter is the quietest period for Dublin travel. Although the Dublin weather is dodgy and you’ll definitely need an umbrella (in fact you’d better bring one all year round) as well as some warm and waterproof threads, you’ll find great discounts all round and hoteliers will welcome you with open arms, great rates and doting service. If you visit on a bank holiday at any time of year, you’ll find the city deserted as most Dubliners take advantage of the three-day weekend to get out of town.
Spring and fall are often good times to plan a Dublin vacation. Queues are shorter into the city’s main attractions and you can get a table at pretty much any restaurant (outside the weekend) without a reservation. The week around Saint Patrick’s Day (March 17th) is an exception—you’ll need to book accommodations in advance and visit city attractions early in the day to avoid the masses.