Dublin in March: what to expect

March in Dublin is a shoulder month: cool, changeable and often windy, with rain arriving in short showers rather than all-day downpours. Dublin sits in the driest part of Ireland, so you get more usable hours outside than on the west coast, but you still need a waterproof layer every day.

Daytime highs sit around 8–11 °C and nights fall to 2–4 °C, with frost possible early in the month. Daylight stretches from roughly 11.5 hours at the start to 13 by the end, and the clocks go forward on the last Sunday of March, which suddenly gives you bright evenings for walking the canal or the coast.

Sea temperatures stay around 8–9 °C, so swimming is for the hardy only. Wind off Dublin Bay makes the seafront at Howth and Dún Laoghaire feel several degrees colder than the city centre.

For most of March, Dublin is quiet. Hotel rates sit near their winter lows, museums and the Book of Kells have short or no queues, and you can walk into most pubs and restaurants without booking. This is one of the cheapest months to see the city.

The exception is St Patrick's week. From around 14 to 18 March, hotels fill and prices jump to summer or higher levels, flights into Dublin get expensive, and the city centre is packed for the parade on 17 March. If you want that week, book accommodation and flights months ahead; if you do not, avoid it entirely and take the quiet days either side.

Easter can also fall in late March (26–29 March in 2027). That weekend is busy but less extreme than St Patrick's, and some businesses close on Good Friday.

The month is built around St Patrick's Day on 17 March. Dublin runs a multi-day festival around it, with a large parade through the city centre, music, talks and events aimed at visitors and locals. It is the busiest week of the month by a wide margin.

St Patrick's Day is a public holiday in Ireland, so expect parades in every town, altered bus and tram routes in the centre, and pubs at capacity from early afternoon. If you are in the city for it, pick your viewing spot on the parade route early and plan to walk rather than take transport across the centre.

Easter can land in late March. Good Friday is not a public holiday in Ireland and some businesses close, while Easter Monday is a public holiday with reduced services. Beyond these, March is a normal working month in Dublin, with the usual theatre, gigs and museum programming.

March suits indoor Dublin. The museums — National Museum of Ireland, National Gallery of Ireland, Hugh Lane — are free and warm, and the Book of Kells and Long Room at Trinity College are far easier to see now than in summer. Pair them with a distillery tour or a brewery visit when the rain sets in.

On dry days, use the longer daylight. Walk the Grand Canal or the Royal Canal towpaths, cross the Ha'penny Bridge and wander the Georgian squares, or take the DART out to Howth for the cliff path and a seafood lunch, or south to Dún Laoghaire and the pier. The Wicklow mountains and Glendalough are reachable as a day trip, but expect mud and low cloud.

If you have a car, March is a good month for the east coast and the Boyne Valley, with thin crowds at Newgrange and Trim. Save the west coast and the islands for later in spring, when ferries and cliff paths are more reliable.

Pack for wet and cool, not for snow. A waterproof jacket with a hood, shoes you do not mind getting wet, and layers you can add and remove through the day cover almost everything March throws at you. An umbrella is useful in the city but useless on exposed coastal paths.

Add a warm hat and gloves for evenings and coastal walks, and one smarter outfit if you are going to a St Patrick's event or a nicer restaurant. Bring a small daypack with a dry bag or plastic sleeve for your phone and camera.

February is colder, darker and cheaper, with the St Brigid's Day bank holiday at the start. April brings spring, longer days and lambs in the fields, with Easter often busy; it is the first month the country facts rate as a clear go.

May is often the driest and sunniest month in Ireland, and a strong choice if you can shift your trip by a few weeks. If you are set on March, aim for the first half or the last ten days and treat St Patrick's week as a separate, more expensive trip.