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Best months: May, June, September.
Ireland experiences 16-18°C average highs and 16+ hours of daylight during May, June, and September. Dublin to Galway covers 209km, while Aer Lingus returns (London-Dublin) start from €89. Average B&B rates in April 2026 are €110/night; May sees 80mm rainfall, June 75mm, and September 90mm. Booking 60 days ahead in these months saves up to 20% on peak prices.
Dublin anticipates 500,000 attendees for the St Patrick's Day parade on March 17th. April brings warming temperatures – typically 6-14°C – and lengthening daylight hours, extending to 17 by late May. Dublin hotel rates average €155 per night during April, coinciding with peak lambing season in the Connemara fields; late April offers the best viewing. The Cliffs of Moher visitor centre remains open daily from 8:00 to 19:00, allowing ample time to explore. Further south, the Kenmare Ring’s rhododendron bloom reaches its height around mid-May, transforming the route with colour. Planning a visit between March and May captures Ireland’s springtime renewal, offering a unique perspective on the landscape and wildlife.
Sunset occurs after 22:00 along the west coast of Ireland in late June, providing up to 19 hours of daylight. July sees Dublin hotel rates reach €310 per night, coinciding with the Galway International Arts Festival which runs for fourteen days, ending July 31st. Demand on the Wild Atlantic Way peaks during the first week of August, creating congestion between Kinsale and Westport – a 330km stretch. Access to Skellig Michael is strictly limited to 180 boat licences daily, requiring advance booking. Average summer temperatures range from 13-20°C, typical for coastal areas like Dingle and Galway. Pre-booking accommodation and Skellig Michael tours is essential to avoid disappointment and manage costs during these busy months. Expect higher prices and increased traffic throughout July and early August.
Galway’s annual oyster festival traditionally signals the start of autumn in Ireland, running the last weekend of September. Temperatures between 7-16°C define the season, with daylight decreasing from 13 hours in early September to just 8 by November. The Wicklow Mountains showcase peak red foliage around the second week of October, offering dramatic views. After October 15th, storm frequency increases noticeably along the western coast. Dublin hotel prices fall 30-40% in November, averaging approximately €120 per night. Unusually, Donegal offers potential for aurora borealis viewing on nights with a KP index of 5 or higher. Careful planning, balancing seasonal beauty with increased weather risk and potential savings, ensures a rewarding Irish autumn experience.
Dublin’s Docklands Christmas Market opens November 14th, initiating a quieter season across Ireland. By the December 21st winter solstice, daylight shrinks to roughly seven hours – sunrise at 08:40, sunset at 16:08. Average temperatures remain between 3-8°C; snowfall is infrequent save for the Wicklow Mountains and Macgillycuddy’s Reeks, located 280km apart. January’s TradFest fills Temple Bar, running from the 22nd to the 26th with traditional music sessions. The Cliffs of Moher, 300km west of Dublin, see visitor numbers drop by 75% from the July peak. This allows for uncrowded exploration of the 8km coastal path. Travel the Ring of Kerry (179km) or Galway city without peak-season delays.
| Month | Temp | Daylight | Crowds | Notes |
|---|---|---|---|---|
| Jan | 3-8°C | 8h | 2/10 | TradFest Temple Bar late January; storm season North Atlantic |
| Feb | 3-8°C | 10h | 2/10 | Six Nations rugby at Aviva Stadium; Dublin International Film Festival |
| Mar | 5-10°C | 12h | 6/10 | St Patrick's Day parade Dublin March 17; daffodils bloom Phoenix Park |
| Apr | 6-12°C | 14h | 5/10 | Skellig Michael boats resume April 15; puffin season begins |
| May | 9-15°C | 16h | 7/10 | rhododendron Kenmare Ring; Bloomsday planning |
| Jun | 12-18°C | 18h | 8/10 | Bloomsday June 16 Dublin; longest day June 21 |
| Jul | 14-20°C | 19h | 10/10 | Galway Arts Festival; Longitude Festival Marlay Park |
| Aug | 14-20°C | 17h | 10/10 | Kilkenny Arts Festival; Rose of Tralee August 22-26 |
| Sep | 11-17°C | 13h | 6/10 | Galway Oyster Festival last weekend; Electric Picnic Stradbally |
| Oct | 8-13°C | 11h | 4/10 | Wicklow autumn colour; Cork Jazz Festival bank holiday |
| Nov | 5-10°C | 9h | 2/10 | Dublin Christmas Market opens mid-November; storm season |
| Dec | 3-8°C | 7h | 5/10 | Dingle Wren Day December 26; 12 Pubs of Christmas Dublin |
Ireland’s climate varies significantly by region, with Donegal averaging 8°C in April 2026 while Dublin reaches 12°C. The Wild Atlantic Way receives over 200mm monthly rainfall; Kerry’s Southwest averages 100mm, and Northern Ireland’s Causeway Coast sees 150mm. Dublin & the East enjoy 6 hours daily sunshine. Selecting your Irish region is as crucial as choosing your travel month.
Dublin and eastward Wicklow offer year-round appeal, though April sees average highs of 12°C and 150mm rainfall. Trinity College Long Room admission costs €18.50 as of April 2026, ideal for indoor exploration should showers occur. The 6km Howth Cliff Walk is best enjoyed with waterproofs, while Powerscourt Estate Wicklow gardens require 3-4 hours. Phoenix Park, accessible via Dublin Bus routes 123 & 151, spans 707 hectares. Glendalough, 50km south, and the Guinness Storehouse (1.7 million annual visitors) complete a varied itinerary. Pack layers.
Landmarks: Trinity College Long Room, Guinness Storehouse, Phoenix Park, Howth Cliff Walk, Powerscourt Estate Wicklow, Glendalough monastic site.
Best for: city breaks; Georgian architecture; pub culture Temple Bar; Wicklow day hikes.
Avoid: avoid Temple Bar weekends during rugby internationals — prices double.
Its western stretch, from County Clare to Mayo, presents ideal conditions in April 2026. The Cliffs of Moher visitor centre operates daily 9:00-17:00, while Connemara National Park trails remain fully open to hikers. A ferry to Inishmore, Aran Islands, leaves Rossaveal at 09:00, costing €60 return. Galway’s Latin Quarter pubs feature live music each night. Access Keem Bay on Achill Island via the R322. Slieve League cliffs rise three times higher than Moher. Average April temperatures range from 8-12°C; pack for possible rain.
Landmarks: Cliffs of Moher, Connemara National Park, Aran Islands, Galway Latin Quarter, Achill Island, Slieve League cliffs.
Best for: coastal drives; traditional music Doolin; surfing Bundoran; Irish-speaking Gaeltacht.
Avoid: avoid November to February Atlantic storms close N59 around Clifden regularly.
April sees average high temperatures of 12°C across Southwest Ireland, perfect for hiking and cycling. The 179km Ring of Kerry drive requires roughly 3h 30min, while the shorter 40km Slea Head Drive circles the Dingle Peninsula. Ross Castle tours within Killarney National Park cost €8 per adult. Skellig Michael boat trips from Portmagee begin May 1st, though April’s calmer seas offer good viewing opportunities. The Beara Peninsula’s Healy Pass provides extensive views. Expect cooler conditions and lower prices before the peak season starts around May 15th.
Landmarks: Ring of Kerry, Killarney National Park, Skellig Michael, Dingle Peninsula, Beara Peninsula, Kenmare Bay.
Best for: Ring of Kerry driving; Skellig Michael pilgrim boats; Atlantic pubs Dingle town.
Avoid: Ring of Kerry bus tours clog the N70 9:00 to 13:00 July-August.
Reaching Slieve League cliffs requires roughly 60 minutes from Donegal Town travelling the R460 route. Glenveagh National Park’s visitor centre operates daily 9:00-17:00, with admission priced at €8. Fanad Head Lighthouse offers hourly tours between 10:00 and 16:00, each costing €12.50. Malin Head lies 120km from Donegal Town. Explore the Inishowen Peninsula via 100+km of coastal roads. April provides approximately 14 hours of daylight, ideal for experiencing the Derryveagh Mountains and rugged coastline.
Landmarks: Glenveagh National Park, Slieve League cliffs, Fanad Head Lighthouse, Malin Head, Inishowen Peninsula, Derryveagh Mountains.
Best for: empty beaches; Gaeltacht Irish; aurora borealis chances; hill walking.
Avoid: road signage often Irish-only — download offline maps before leaving Letterkenny.
April sees average temperatures of 8-12°C, suiting exploration of both coast and mountains. The Giant’s Causeway visitor centre is open 9:00-17:00 daily, with entry at €13.50. Dark Hedges access is free, though parking near Gracefield Road is limited. Allow 3-4 hours for Belfast’s Titanic Quarter museums. Carrick-a-Rede rope bridge costs €10 per person; pre-booking is vital. Mourne Mountains trails range 5-20km. A Derry walls walking tour requires 60-90 minutes. April provides roughly 14 hours of daylight for outdoor pursuits.
Landmarks: Giant's Causeway, Dark Hedges, Belfast Titanic Quarter, Carrick-a-Rede rope bridge, Mourne Mountains, Derry walls.
Best for: UNESCO basalt columns; Game of Thrones locations; peace-line murals Belfast.
Avoid: Giant's Causeway car park fills by 10:30 in July — arrive before 9:00 or after 16:00.
| Activity | Best window | Note |
|---|---|---|
| Wild Atlantic Way drive | May-September | Ireland’s peak seasons offer distinct advantages, but strategic timing maximizes enjoyment while minimizing crowds. Driving the 2,500 km Wild Atlantic Way from Malin Head to Kinsale is best enjoyed between May and September, allowing ample daylight to explore numerous Discovery Points along the coast. Securing a boat trip to Skellig Michael requires booking well in advance, with the optimal window being May 15th to September 30th, accommodating the 180 daily visitor cap for the 3-hour round trip at a cost of €125 per person. Visiting Trinity College’s Long Room between October and March provides a quieter experience to view the Book of Kells, with doors open from 8:30 to 17:00 and adult entry at €25. Early May mornings or October afternoons offer the best light and lower prices—€12 after 8:00—to witness the 214m Cliffs of Moher and climb O’Brien’s Tower. Traditional music sessions thrive year-round in pubs like Gus O’Connor’s in Doolin and Dingle Small Bridge Bar, offering nightly entertainment. Glendalough’s monastic site and Spinc ridge are ideal for hiking from April to October, with views of the Upper Lake and St Kevin’s Round Tower. The 179 km Ring of Kerry loop is most enjoyable in September, avoiding summer congestion while still benefiting from mild weather around Ladies View, Moll's Gap, and Sneem village. Finally, April and October present pleasant weather for exploring the 40,000 basalt columns of the UNESCO-listed Giant’s Causeway, with adult entry costing £13.50. Planning your Irish adventure around these optimal windows ensures a more rewarding and less congested experience across the island. |
| Skellig Michael boat | May 15 - September 30 | Best: May 15 - September 30. |
| Trinity College Long Room | October-March | Best: October-March. |
| Cliffs of Moher visit | May early morning or October | Best: May early morning or October. |
| Traditional music pub session | year-round evenings | Best: year-round evenings. |
| Glendalough monastic hike | April-October | Best: April-October. |
| Ring of Kerry loop drive | September shoulder | Best: September shoulder. |
| Giant's Causeway | April and October | Best: April and October. |
| Event | Dates | Start | Note |
|---|---|---|---|
| St Patrick's Day parade | March 17 | 12:00 | Dublin city centre, 500,000 attendees, starts Parnell Square |
| Bloomsday | June 16 | 08:00 | Joyce walking trail Ulysses, Sandycove to Eccles Street |
| Galway International Arts Festival | July 14-27 | 19:30 | Eyre Square main stage, Spiegeltent in Fisheries Field |
| Longitude Festival | July 4-6 | 13:00 | Marlay Park Dublin, capacity 40,000 |
| Kilkenny Arts Festival | August 7-17 | 19:00 | Kilkenny Castle and cathedral |
| Rose of Tralee | August 22-26 | 19:30 | Tralee Dome, televised 19:30 RTÉ |
| Galway Oyster Festival | September 25-28 | 10:00 | Spanish Parade, world oyster-shucking championship |
| Electric Picnic | August 29-31 | 12:00 | Stradbally Estate Laois, capacity 70,000 |
| Dublin Christmas Market | November 14 - December 22 | 12:00 | Docklands CHQ Building, opens 12:00 daily |
| Category | Price range |
|---|---|
| Hotel Low Season Reykjavik Eur Night | €85-130 (Dublin November) |
| Hotel High Season Reykjavik Eur Night | €280-340 (Dublin July) |
| Flight Dub Roundtrip Summer Eur | €220-340 (Berlin-Dublin July) |
| Flight Dub Roundtrip Winter Eur | €80-140 (Berlin-Dublin February) |
| Rental Car Weekly Summer Eur | €480-620 |
| Rental Car Weekly Winter Eur | €220-320 |
| Ring Of Kerry Bus Tour Eur | €45-60 per person |
| Skellig Michael Boat Eur | €125 per person |
| Guinness Storehouse Entry Eur | €30 on the door, €26 online advance |
| Meal Mid Eur | €22-38 per person Dublin bistro |
Ireland’s spring weather shifts rapidly between sun and showers, often delivering four seasons in a single day. A waterproof shell jacket (€120-€250) is essential, paired with a layered fleece for temperatures typically between 8-12°C. Sturdy walking shoes are vital for trails like the 33km Wicklow Way. Don’t forget a compact umbrella (under €20) and light gloves to combat coastal winds. Surprisingly, sunglasses are useful despite frequent cloud cover. Pack for all conditions and enjoy Ireland prepared.
Ireland’s Gulf Stream-moderated climate means temperatures average 15-20°C in April 2026, but rain is frequent. Layering is crucial; pack long-sleeve merino layers (€60 each) under a light rain jacket (€80-€150 at Arnotts, Dublin). Waterproof trainers like Salomon Speedcross 6 (€130) handle wet ground. Don’t forget sun protection – SPF 30 (€25, La Roche-Posay Anthelios) and a Tilley Endurables sun hat (€90). Crucially, bring Smidge midge repellent (€12) for Connemara’s biting insects. Prepare for all seasons, even in April, due to changeable conditions.
Ireland’s autumn rainfall averages 120mm monthly, so reliable gear is vital. An insulated waterproof shell, costing between €180-€350, forms the outer layer. Combine this with two warm mid-layers – fleece or merino wool – weighing 800g-1.2kg total. Waterproof, broken-in boots are essential for navigating Ireland’s often boggy trails. A wool hat (€25-€60) and a high-lumen torch (minimum 300 lumens, 150g) add crucial warmth and visibility. Protect an Ordnance Survey Ireland map (1:50,000 scale) inside a sealed Ziplock bag. Pack these items for a dry, warm, and confident autumn experience.
Ireland’s Atlantic storms mean packing for winter requires preparation beyond typical cold weather gear. Expect frequent rain and wind; a heavy waterproof parka (€250-€600) is critical. Merino thermal base layers (€80-€150 per set) provide essential warmth, while waterproof boots (€120+) are vital for Ireland’s boggy terrain. Don't forget wool gloves (€30-€70) and a warm scarf. Bring a headlamp, needed by 16:00 due to short daylight hours. Prioritize functional, waterproof, and warm layers for comfort.
Sources: Met Éireann climate averages (1991-2020), Fáilte Ireland visitor statistics, Aviasales flight-price tracking, Booking.com Irish hotel rate seasonality, Irish Rail and Bus Éireann timetables. Updated April 2026.