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Quick Answer

The best time to visit Ireland is May to September, when Met Éireann’s 1991-2020 averages put Dublin’s highs at about 15 to 20°C and May brings the most sunshine, around 6.4 hours a day. Rain falls in every month, so plan around showers rather than dry spells. Winter is mild but dark: Dublin averages about 8°C by day in December and January with under two hours of sunshine, which suits a Christmas city break in Dublin, where TwinkleTown runs from 20 November, more than a drive along the coast. For a first trip, give Ireland seven to ten days: two or three in Dublin, then Galway as a base for the Cliffs of Moher, where the adult gate price is 15 euros and online tickets are cheaper. Ireland uses the euro, is in the EU but not in the Schengen area, and the Giant’s Causeway across the border in Northern Ireland needs a £20 UK ETA for most visitors.

At a glance

Best time
May–Sep; Dec for Christmas
Time needed
7 to 10 days
Currency
Euro (EUR)
Language
Irish and English
From the airport
Dublin Airport: Dublin Bus route 16/41 (Leap card), 45–60 min
Plugs
Type G, 230 V
Visa
Not Schengen: separate Irish entry rules
Getting around
Irish Rail, Bus Éireann, TFI Leap card

Ireland is a small country with a big climate reputation, most of it deserved: it rarely gets very cold or very hot, and it rains a little on a lot of days. The real choices are when the light and the roads suit your trip, where to base yourself, and which border rules apply. All prices and dates below were checked on 9 October 2026.

Ireland weather month by month

The figures are Met Éireann’s 1991-2020 averages for Dublin Airport, on the drier east coast, with rainfall for Shannon Airport in the west for comparison.

MonthDublin high / lowDublin rainShannon rainBest for
January8.0°C / 2.3°C61.8 mm103.8 mmQuiet museums, low hotel prices
February8.5°C / 2.2°C52.4 mm86.7 mmCity breaks, short days
March10.1°C / 3.0°C51.4 mm75.8 mmSt Patrick’s Day, first spring walks
April12.3°C / 4.0°C55.0 mm62.3 mmGardens and spring walks, fewer crowds
May14.8°C / 6.6°C57.0 mm63.1 mmThe sunniest month, coast drives
June17.7°C / 9.0°C64.0 mm69.6 mmLong evenings, hiking
July19.5°C / 11.3°C61.0 mm75.8 mmWarmest, busiest, festivals
August19.1°C / 11.2°C73.4 mm87.6 mmSummer holidays, busy roads
September16.9°C / 9.5°C63.3 mm77.4 mmMild, thinner crowds
October13.6°C / 7.1°C78.4 mm95.5 mmAutumn colour, Halloween
November10.3°C / 4.3°C82.7 mm106.6 mmChristmas season begins
December8.3°C / 2.6°C72.1 mm115.4 mmChristmas lights and markets

Two numbers explain most of Irish travel planning. First, daylight: Dublin averages 6.4 hours of sunshine a day in May and 1.7 in December. Second, the west is far wetter, at 1,019.7 mm a year at Shannon against 772.5 mm at Dublin Airport. Pack a waterproof in every season; our best travel umbrellas guide covers the windproof ones, which matter on the Atlantic coast.

Top Cities to Explore

Dublin Ireland's capital on the River Liffey, with Trinity College, the Book of Kells, free national museums and the DART to the coast.
Galway The west coast's liveliest small city on the Wild Atlantic Way, and the usual base for the Cliffs of Moher and Connemara.
Killarney A County Kerry town beside Killarney National Park, Ireland's first national park, with lakes, woodland and Muckross House.
Cork Ireland's second city, built on the River Lee in the south, and a gateway to the southern end of the Wild Atlantic Way.
Kilkenny A compact medieval town in the south-east, centred on Kilkenny Castle and its riverside parkland.

Best time to visit Ireland by trip type

Road trips and the Wild Atlantic Way (May to September)

The Wild Atlantic Way is a 2,500 km signposted route down the west coast, from Donegal to Cork, and it is at its best when the days are longest. May and June combine the most sunshine with smaller crowds than July and August. If you plan to drive, our car rental section explains the insurance traps; traffic drives on the left.

Christmas in Dublin (late November to December)

Ireland does not have Central European style market squares in every town, but Dublin’s season has grown. TwinkleTown, run with Dublin City Council, opens in Smithfield Square from 20 November to 31 December and in St Patrick’s Park from 27 November to 23 December, with free entry and ticketed ice skating. Our Dublin city guide has the full programme. Compare it with the bigger continental markets in our Christmas markets in Europe 2026 guide and where to go in December.

Winter (November to February)

Winter is mild, rarely freezing for long, and cheap, but short days cut sightseeing time and Atlantic storms bring the most rain to the west. Base yourself in Dublin, where the museums are indoors and several are free, and treat any trip west as a bonus. Check holiday closures: the Office of Public Works closes Brú na Bóinne (Newgrange) from 24 to 27 December and on 1 January.

Halloween (late October)

Halloween grew out of Samhain, the Gaelic festival that marks the start of winter, and late October is a lively time to visit. Ireland’s October bank holiday falls on Monday 26 October 2026; see our Halloween trips in Europe guide for the Dublin and Derry~Londonderry festivals.

Where to go in Ireland

Dublin is the arrival point for most visitors and has the best transport links; give it two or three days. Galway is the west coast’s liveliest small city and the usual base for the Cliffs of Moher and Connemara. Killarney sits beside Killarney National Park, 10,000 hectares of lakes, woodland and mountains, which became Ireland’s first national park in 1932. Cork is the south’s main city, and Kilkenny is a compact medieval town on the way between Dublin and the south-west.

The Cliffs of Moher in County Clare are the country’s most visited natural sight. The Cliffs of Moher Experience charges a gate rate of 15 euros for adults and 12 euros for students and seniors, including parking, the visitor centre and O’Brien’s Tower; children under 12 go free with a parent, and online tickets are up to 45% cheaper outside the 11am to 4pm peak. From November to February the site opens 9:00 to 17:00.

The Giant’s Causeway is in Northern Ireland, part of the UK. The National Trust strongly recommends pre-booking its Visitor Experience. Before you cross the border, read the entry section below.

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How much does Ireland cost per day?

Ireland is one of the pricier countries in Europe, and Dublin hotels are the biggest cost. In a Booking.com check on 9 October 2026, central Dublin hotels for a mid-January weekend started at around 100 to 110 euros a night for two; summer and event weekends run much higher.

ItemCost
Dublin bus, Luas or DART, TFI Leap 90-minute fare2 euros
Dublin Leap daily fare cap, adult6 euros
Leap Visitor Card, 1 / 3 / 7 days8 / 18 / 24 euros
Airport coach to the city centre (Dublin Express, Aircoach)from about 9 euros online
Cliffs of Moher, adult gate rate15 euros (cheaper online)
Kilmainham Gaol, adult8 euros
Glendalough Visitor Centre, adult5 euros
National Museum of Ireland and National Galleryfree

How to get around Ireland

Trains and buses. Irish Rail runs intercity trains from Dublin to Galway, Cork, Limerick and other cities, and Bus Éireann runs the national coach network. In Dublin, a TFI Leap card gives the cheapest fares on Dublin Bus, Go-Ahead Ireland, Luas trams, DART and commuter rail, with a 2-euro fare covering 90 minutes of transfers and a 6-euro daily cap. The Leap Visitor Card is not valid on Bus Éireann services.

Driving. A car is the easiest way to see the west and Kerry. Ireland drives on the left, and rural roads are narrow; leave more time than the map suggests.

Entry requirements, money and connectivity

Ireland is not in Schengen. Ireland is an EU member and uses the euro, but it is outside the Schengen area and does not take part in the EU Entry/Exit System, according to Ireland’s Immigration Service Delivery. Days spent in Ireland therefore do not count towards the Schengen 90-in-180 limit; our Schengen 90/180 rule and EES and ETIAS guides cover the continent. Non-EU visitors present to an Irish immigration officer, who can grant a stay of up to three months, and nationals of visa-required countries need an Irish short-stay C visa. If you arrive overland from Northern Ireland, Immigration Service Delivery says you must report to an immigration officer or Garda immigration office within 30 days.

Northern Ireland needs UK permission. Ireland and the UK share the Common Travel Area, which lets Irish and British citizens move freely, but other visitors crossing into Northern Ireland need a UK ETA (£20) or a UK visa. GOV.UK exempts people from ETA countries only if they live in Ireland and are travelling from Ireland. Our UK ETA guide explains how to apply, and the United Kingdom guide covers the rest of the UK.

Money and plugs. Ireland uses the euro and Type G three-pin plugs, the same as the UK; check our travel adapters by country guide. Cards and contactless payment are accepted almost everywhere.

Mobile data. EU roaming rules apply in Ireland, and a Europe eSIM covers it along with the rest of the continent; compare options in our best eSIM for Europe guide.

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Frequently Asked Questions

What is the best time to visit Ireland?

May to September is the best time for most trips. Met Éireann’s 1991-2020 averages for Dublin Airport give highs of 14.8°C in May and 19.5°C in July, and May is the sunniest month at about 6.4 hours of sunshine a day. Rain is spread across the year, so expect showers in any month. December suits a Christmas city break in Dublin rather than a road trip.

What is Ireland like in winter?

Mild, wet and dark. Dublin Airport averages a high of 8.0°C in January and 8.3°C in December, with about 1.7 to 1.9 hours of sunshine a day according to Met Éireann. The west is wetter: Shannon Airport averages 115.4 mm of rain in December against 72.1 mm in Dublin. Snow is rare, with snow lying on fewer than one morning a month in Dublin.

Is Ireland in the Schengen area?

No. Ireland is in the EU and uses the euro, but it is not in the Schengen area and does not take part in the EU Entry/Exit System, so days in Ireland do not count towards the Schengen 90-in-180 limit. Non-EU visitors see an Irish immigration officer, who can grant a stay of up to three months, and nationals of visa-required countries need an Irish short-stay C visa.

Do I need a UK ETA to visit the Giant’s Causeway from Dublin?

Most likely yes. The Giant’s Causeway is in Northern Ireland, which is part of the UK, so visitors who are not British or Irish citizens need a UK ETA, which costs £20, or a UK visa if their nationality requires one. GOV.UK exempts people from ETA countries only if they live in Ireland and are travelling from Ireland.

How much does it cost to visit the Cliffs of Moher?

The gate rate at the Cliffs of Moher Experience is 15 euros for adults and 12 euros for students and seniors, and children under 12 go free with a parent, up to four per family. Booking online is cheaper, with discounts of up to 45% outside the 11am to 4pm peak. The ticket includes parking, the visitor centre and O’Brien’s Tower; from November to February the site opens 9:00 to 17:00.

How many days do you need in Ireland?

Seven to ten days covers Dublin plus the west. Give Dublin two or three days, then cross to Galway as a base for the Cliffs of Moher, and add Killarney National Park in County Kerry if you have more time. The full Wild Atlantic Way is a 2,500 km coastal route and needs two weeks or more to drive properly.

Start planning your Ireland trip

Winter is the cheapest season for flights and Dublin rooms, while May to September fills early with tour groups and festival weekends, so book the room as soon as your dates are set. From the UK, our cheap flights from London to Dublin guide compares the carriers and airports.

Find cheap flights to Dublin | Compare Dublin hotel prices

More ideas: where to go in May, where to go in November and the cheapest European countries to visit in 2026.