When is the best time to visit Ireland? It depends on your priorities! Here's a quick breakdown:
- Best Weather: May to September (mild temperatures, longer days, less rain)
- Fewer Crowds: Spring (March to May) and Fall (September to November)
- Budget-Friendly: Winter (December to February) offers lower prices but shorter days.
- Festivals & Events: March (St. Patrick's Day), October (Halloween festivals), and summer months (music and arts events).
Quick Overview by Season:
- Spring (March–May): Blooming flowers, moderate crowds, and mild temperatures (43–54°F).
- Summer (June–August): Warmest weather (54–60°F), long daylight hours, but higher costs and crowds.
- Fall (September–November): Cool air, autumn colors, fewer tourists, and lively festivals.
- Winter (December–February): Quiet season with shorter days, cooler weather (39–46°F), and festive Christmas markets.
No matter when you go, pack layers and waterproof gear - Irish weather is famously unpredictable. For a detailed breakdown of weather, events, and activities by month, keep reading!
Spring Months: March to May
Spring Weather Guide
Spring in Ireland offers mild temperatures and longer days, making it a great time to visit. Average temperatures range from 46°F to 54°F (8°C to 12°C), with late spring occasionally reaching 59°F (15°C) [5]. Here's a quick look at the weather in major Irish cities:
| City | March (High/Low) | April (High/Low) | May (High/Low) |
|---|---|---|---|
| Dublin | 50°F/39°F | 53°F/41°F | 58°F/46°F |
| Shannon | 51°F/40°F | 56°F/43°F | 60°F/47°F |
| Sligo | 49°F/40°F | 53°F/42°F | 57°F/46°F |
By late April, daylight extends to nearly 15 hours, with sunsets around 8:00 PM. Rainfall is typical, with about 11 rainy days each in March and April [5].
Spring Events Calendar
Spring in Ireland is packed with lively festivals and celebrations. March kicks off with the famous St. Patrick's Day Festival, celebrated nationwide. Dublin hosts the largest festivities (usually March 15–18), but Kilkenny, Cork, and Killarney also offer exciting events.
April brings the International Pan Celtic Festival in Carlow (April 2–6) and the Cúirt International Festival of Literature in Galway (April 8–13). Food lovers can indulge at the Waterford Festival of Food (April 25–27).
In May, enjoy jazz and swing at the City of Derry Jazz & Big Band Festival (May 1–5), traditional music at Fleadh Nua in Ennis (May 24–June 2), and literary celebrations at the Listowel Writers' Week in County Kerry (May 28–June 1).
What to Do in Spring
Spring is ideal for exploring Ireland's stunning landscapes and cultural landmarks. By May, daylight stretches from about 5:17 AM to 9:26 PM [8], giving you plenty of time to soak in the sights. Travel writer Chris Allsop aptly describes it: "Ireland in spring is one of the best times to visit this wonderfully welcoming and beautiful island" [9].
Be prepared for changing weather by packing breathable layers, a waterproof jacket and pants, sturdy hiking boots, and accessories like a hat, scarf, and gloves. Locals often say, "There's no such thing as bad weather, only bad clothes."
With fewer crowds, blooming flowers, and plenty of local charm, spring offers a delightful time to experience Ireland.
Summer Months: June to August
Summer Weather and Tourism
Summer in Ireland offers some of the year's most enjoyable weather. Coastal areas typically see highs around 64°F (18°C), while inland temperatures can reach up to 68°F (20°C). However, the weather can change quickly, so it's wise to pack lightweight, waterproof layers and sturdy shoes [10]. During the Summer Solstice on June 21, visitors can experience up to 17.5 hours of daylight [14]. Despite the long days, actual sunshine averages around 5–7 hours daily [10].
Summer Festival Guide
Ireland's summer is a vibrant time for festivals, and the Galway International Arts Festival (July 14–27, 2025) is a standout event [11]. This festival turns Galway into a bustling cultural hotspot, featuring a mix of local and international talent at venues like the Heineken Big Top. As Artistic Director Paul Fahy explains, the festival highlights a wide range of artistic excellence [12].
Some notable performances include:
- Amble: July 16
- Sophie Ellis-Bextor & Natasha Bedingfield: July 17
- Picture This: July 21–22 [11]
August brings even more traditional celebrations, such as:
- Fleadh Cheoil na hÉireann – Ireland's largest traditional music festival
- Puck Fair – a historic festival with concerts and storytelling
- Kilkenny Arts Festival – a week-long showcase of Irish and international arts
- Rose of Tralee Festival – featuring parades, concerts, and cultural events [13]
Outside of festivals, summer is perfect for exploring Ireland's natural beauty and outdoor activities.
Summer Activities Guide
The mild weather and extended daylight make summer ideal for outdoor adventures. Killarney National Park is a top choice, offering a rugged landscape and home to Ireland's largest native Red Deer herd, which has grown from 110 to over 1,000 since 1970 [15]. EF Ultimate Break Tour Director Laura describes it best:
"Killarney National Park is exactly what you imagine when you daydream of a romantic, rugged Ireland." [15]
For dramatic coastal views, the Slieve League Cliffs are a must-see, standing three times higher than the Cliffs of Moher [15]. If you're looking for beaches, check out Inch Beach in Kerry, Lahinch Beach in Clare, or Portmarnock Beach in Dublin [16].
Since summer is peak tourist season, booking accommodations early is essential [16]. For those interested in island adventures, the Aran Islands are a great option, with frequent and reliable ferry services during this time [14].
Fall Months: September to November
Fall Weather Guide
Fall in Ireland brings mild temperatures and vibrant autumn colors. September offers pleasant days with highs around 62°F (17°C) and lows near 50°F (10°C) [17]. As the season progresses, temperatures drop steadily - October averages between 47°F and 56°F (8°C and 14°C), while November cools further to 40°F–50°F (5°C–10°C) [17].
| Month | High Temp | Low Temp | Rainfall | Daylight Hours |
|---|---|---|---|---|
| September | 62°F (17°C) | 50°F (10°C) | 2.4 in (60mm) | 12.5 hours |
| October | 56°F (14°C) | 47°F (8°C) | 4.3 in (110mm) | 10 hours |
| November | 50°F (10°C) | 40°F (5°C) | 3.9 in (100mm) | 8.5 hours |
October tends to be the wettest month, with rainfall reaching up to 4.3 inches (110mm) [17]. By November, clearer skies often provide a chance to catch the Northern Lights on especially clear evenings [17]. Winds stay steady throughout the season, averaging 9–10 mph (15–16 kph) [17]. These conditions create the perfect backdrop for Ireland's autumn festivities.
Fall Events Calendar
Autumn in Ireland is packed with exciting events, especially in October. The Galway International Oyster & Seafood Festival (September 27–29) celebrates its 70th year with live music, seafood tastings, and oyster-shucking contests [21].
Halloween takes center stage with these standout festivals:
- Púca Festival (October 31 – November 3): A celebration of Halloween's Celtic origins in County Meath, featuring music, comedy, and heritage tours [21].
- Derry Halloween (October 28–31): Known as Europe's largest Halloween festival, it offers lively street celebrations [20].
- Bram Stoker Festival (October 25–28): A gothic-themed event in Dublin honoring Dracula's author [21].
For theater lovers, the Dublin Theatre Festival (September 25 – October 12) showcases international productions, while the Cork Guinness Jazz Festival (October 23–27) hosts performances across 60 venues [7]. The Wexford Festival Opera (October 17 – November 1) is a must-see for fans of lesser-known operatic works [7].
Fall Travel Tips
October is Ireland's peak festival season.
"Ireland in October is festival season. It's the month when Ireland hosts the most festivals, up and down the country." [22]
This season is also perfect for nature enthusiasts. Head to Killarney National Park to witness red deer during their rutting season [17], or explore Connemara, where the golden autumn landscape provides stunning photography opportunities [17].
Take advantage of fewer crowds, savor seasonal dishes, and enjoy dramatic lighting for photos. Pack waterproof layers and sturdy shoes - October's rainfall calls for weather-ready gear [17]. September offers some of the best weather of the year [18], but by November, shorter daylight hours (around 8.5) make planning indoor activities for afternoons a smart move [17].
Up next, check out our month-by-month guide to plan your trip!
Winter Months: December to February
Winter Weather Guide
During winter in Ireland, days are shorter, with only about 8.5 hours of daylight, and temperatures are on the cooler side. Daytime highs typically range from 52°F (11°C) in December and January to 56°F (14°C) in February. Nighttime lows hover between 42°F (6°C) and 47°F (8°C). Rainfall is fairly consistent, averaging 3.5 to 4.3 inches (72–96 mm) per month, accompanied by steady winds around 10 mph (16–17 kph)[26].
| Month | High Temp | Low Temp | Rainfall | Daylight Hours |
|---|---|---|---|---|
| December | 52°F (11°C) | 42°F (6°C) | 3.5 in (72 mm) | 8.5 hours |
| January | 52°F (11°C) | 42°F (6°C) | 3.8 in (80 mm) | 8.5 hours |
| February | 56°F (14°C) | 47°F (8°C) | 4.3 in (96 mm) | 9.5 hours |
Although snow is rare, areas like Wicklow, Monaghan, Donegal, and parts of the Midlands may experience 12–20 snowy days annually. Winter storms often create striking coastal landscapes, adding to the season’s charm[26].
Winter Events Calendar
December turns Ireland into a holiday haven, brimming with Christmas markets and seasonal festivities:
- Waterford Winterval (November 15 – December 23): Enjoy a bustling continental market, a vintage Ferris wheel, ice skating, and a Santa village[23].
- Yulefest Kilkenny (November 30 – December 21): Highlights include Santa’s boat arrival and wreath-making workshops[23].
- Wicklow Christmas Market (November 23 – December 22): Features attractions like the Jingle Bell Express train and cookie decorating with Mrs. Claus[23].
After the holidays, there’s still plenty to do. Visit Winter Woodland at Beyond the Trees Avondale (open until February 3) to walk through a magical illuminated treetop path. In late January, TradFest Temple Bar celebrates Irish music and culture with performances and events[23][6].
When the weather doesn’t cooperate, Ireland’s indoor attractions are just as inviting.
Indoor Activities Guide
Cold days are perfect for exploring Ireland’s rich indoor offerings:
- Guinness Storehouse in Dublin: Take a brewery tour that ends with stunning views at the Gravity Bar[24].
- Medieval Mile Museum in Kilkenny: Offers guided tours and even a Lego hunt for younger visitors[24].
- King of the Vikings in Waterford: Dive into Viking history with an immersive virtual reality experience[24].
- Chester Beatty in Dublin: Home to an impressive collection of manuscripts and artwork from around the globe[24].
For families, W5 in Belfast offers hands-on exhibits and live demonstrations, while literature fans can visit Seamus Heaney HomePlace in County Londonderry to learn about the Nobel laureate’s life and work[25]. Meanwhile, Titanic Belfast provides a fascinating look at the iconic ship, right where it was designed and built[25]. Winter visitors often benefit from special rates and quieter attractions during this time of year[26].
What Are The Best Months To Go To Ireland?
Monthly Travel Guide
This guide breaks down Ireland's weather and events month by month, making it easier for you to plan your trip.
January through March Guide
Winter in Ireland is calm and quiet, offering a chance to explore without crowds. While some attractions may close for the season, Dublin's TradFest is a highlight, showcasing Irish music in iconic venues like St. Patrick's Cathedral [7].
| Month | Average High | Average Low | Key Events |
|---|---|---|---|
| January | 44.6°F | 37.4°F | TradFest Dublin |
| February | 46.4°F | 35.6°F | Few events |
| March | 50°F | 39.2°F | St. Patrick's Festival |
In March, smaller towns host charming St. Patrick's Day parades, offering a quieter alternative to Dublin's bustling festivities [19].
April through June Guide
Spring brings mild weather and blooming landscapes. April sees temperatures around 55°F with occasional showers, while May offers comfortable conditions ranging from 48.2°F to 55.4°F [4]. County Kerry's gardens are particularly stunning, with vibrant fuchsias in full bloom [3].
June marks the start of peak travel season, with temperatures climbing to 64.4°F and daylight lasting up to 18 hours [2]. Literature lovers will enjoy Bloomsday in Dublin, celebrating James Joyce's Ulysses through performances and readings across the city [3].
July through September Guide
July and August are Ireland's warmest months, with highs reaching 66.2°F [4]. The Galway International Arts Festival (July 17–30) offers live music, theater, and art installations [3]. Early August brings the Dingle Regatta, where Namhóg canoe races take center stage [3].
By September, temperatures cool slightly to 55.4°F–60.8°F [4]. This is the last chance to visit the dramatic Skellig Islands before they close for the season. Food lovers can savor the Galway International Oyster and Seafood Festival [3].
October through December Guide
October's mild temperatures, averaging 55°F [4], make it perfect for enjoying autumn colors and attending the Cork International Jazz Festival [3]. November cools down to 49.1°F–53.6°F and kicks off the Christmas market season [4].
December may be chilly, averaging 41°F [4], but the festive atmosphere more than makes up for it. The Galway Continental Christmas Market drew over 450,000 visitors in 2023, while Belfast's Christmas Market continues to attract over 1 million visitors annually [7].
Conclusion
Plan your trip to Ireland based on what matters most to you. For comfortable weather and good value, consider visiting in May or September, when temperatures average around 59°F with light to moderate rain [27].
Here's a quick guide to help you decide:
| Travel Priority | Best Time | What to Expect |
|---|---|---|
| Budget-Friendly | January–February | Lowest prices, chilly weather (37–46°F), and fewer tourists |
| Pleasant Weather | June–July | Warmest days (up to 66°F), longest daylight hours, but higher costs |
| Fewer Crowds | September–October | Mild temperatures (48–59°F), fair prices, and shorter wait times at attractions |
| Cultural Events | March | St. Patrick's Festival, bigger crowds, and increased expenses |
This breakdown highlights Ireland's seasonal charm, helping you plan your ideal visit based on your preferences and budget.
For budget-conscious travelers, Ireland can be experienced for around $1,100 per person, which includes flights, lodging, and activities [28]. Winter months generally offer the lowest rates [1]. If you want fewer crowds and pleasant weather, September is a great time to explore the Wild Atlantic Way or Ireland's Ancient East [27].
No matter when you visit, Ireland has something special to offer. Winter temperatures rarely dip below freezing, while summer days stay comfortably below 70°F [1]. From festive December markets to long, sunny summer evenings, every season brings its own unique experiences. Use the monthly guides above to fine-tune your travel plans.
