Planning a trip to Ireland in September and wondering what to pack? You’re not alone! This is the age-old big vacation dilemma: figuring out everything you need to pack as the seasons start to change. Whether you’re joining one of our small-group tours of Ireland or preparing for one of our tailor-made Ireland tours, packing smart can make all the difference.
September is one of our favorite months here on the Emerald Isle. The summer crowds have thinned, the landscapes are still lush and green, and the air carries that first hint of autumn freshness. It’s the perfect time to explore the Cliffs of Moher or wander Galway’s cobbled streets in comfort — without the peak-season bustle.
Of course, figuring out what to wear can still feel like a puzzle. How do you stay comfortable for a day of sightseeing yet ready for a cozy pub dinner in the evening? How much should you bring? And how do you leave enough space in your suitcase for the souvenirs (and Irish sweaters) you’ll inevitably fall in love with?
This guide breaks it all down so you can spend less time packing and more time soaking up the adventure.
Ireland’s Weather in September
September can be a surprisingly lovely month in Ireland. The school year starts at the beginning of the month, and, because the universe has a sense of humour, the sun often comes out just as the kids head back to class.
While the island of Ireland is relatively small (about the size of Indiana), it’s known for its changeable weather. Locals will tell you we sometimes get “four seasons in one day” — but as the old saying goes, there’s no such thing as bad weather, only the wrong clothes. Pack wisely, and you’ll be comfortable no matter what the skies decide to do.
If you plan on hiking during your September trip to Ireland, waterproof hiking shoes or boots are a must. And be sure to read our guide to hiking in Ireland, too! Many of Ireland’s trails are simple dirt tracks, which can quickly turn muddy after a bit of rain. Even a short one-hour hike can feel endless if you’re squelching along with wet feet! Ireland’s landscapes are stunning, but no view can distract from that level of discomfort.
For non-hiking days, pack something comfortable for exploring towns and enjoying evenings out. You’ll want shoes you can walk in — and dance in! Ireland’s live music scene is infectious, and even the most rhythmically challenged visitors often find themselves joining in.
Packing for Ireland in September: Layer Up for Comfort and Exploration
Whether you’re strolling through quaint villages, exploring castle ruins, or hiking along the Wild Atlantic Way, layering is key for a September trip to Ireland. A lightweight waterproof jacket is essential for outdoor adventures. But this isn’t because you’re guaranteed to get caught in a downpour; rather, it keeps you comfortable and ready to explore all of Ireland’s treasures, whatever the day brings.
Underneath your jacket, a warm fleece or light sweater works perfectly for crisp mornings and cooler evenings. Short- and long-sleeve tops can be mixed and matched to suit the weather, making it easy to stay comfortable while on the move. A couple of pairs of jeans or travel-friendly trousers are ideal; warm, practical, and ready for a day on the road or an evening in a cozy pub.
Accessories like a beanie and scarf are small but smart additions to your packing list. A beanie packs easily and keeps you warmer than a baseball cap, while a scarf can add extra comfort or even a touch of style for evenings out.
The key takeaway? Layers are your best friend. They give you flexibility for exploring, keep you comfortable during outdoor adventures, and make transitioning from scenic hikes to casual dinners effortless. No tuxedos or ballgowns required — just smart, versatile clothing that lets you enjoy Ireland to the fullest.
Looking for more on this topic? Be sure to read our blog What to Pack on a Trip to Ireland? when you have finished here.
Ireland Can Be Very Sunny in September
Even in September, Ireland can surprise you with bright, clear days — so sunglasses are a must. If you have blue, green, or grey eyes, sunlight can feel extra intense, whether you’re standing on a cliff, sitting by a beach, or admiring a waterfall. A good pair of sunglasses makes the experience more comfortable and stylish — and they hardly take up any room in your suitcase. Bonus tip: go full celeb-mode and wear them through the airport and on the plane!
Sunscreen is another small but essential addition. Locals may not slather it on, but exposure to the sun can still leave you looking a little like a ripe tomato by evening. A quick layer of sunscreen keeps your skin happy and lets you enjoy your day without worry.
Finally, remember: you don’t need to overpack. Laundry facilities are easy to find while traveling around Ireland, and if you forget something, charming local shops often offer exactly what you need. Pack smart, keep it simple, and focus on enjoying the incredible landscapes, towns, and experiences September has to offer.
Are you still considering visiting the Emerald Isle at another time of year? We think you will appreciate our blog What is the Best Time of Year to Visit Ireland? It takes a broader overview of what you can expect in all seasons!
Footwear and Terrain: What You Need for a September Ireland Trip
Ireland’s landscapes are as varied as they are beautiful, from windswept coastal paths and rolling country lanes to cobblestone streets in charming towns. With that in mind, the right footwear is essential for enjoying your September trip comfortably.
A pair of good walking shoes with traction is a must for daytime exploration. On most Overland tours, lighter hiking shoes or trail sneakers are usually enough for the moderate walking and trails included. There’s no need to bring heavy boots unless you prefer them.
For evenings, pack something comfortable yet a little smarter, such as casual leather shoes or smart boots. These will take you from a cozy pub dinner to a boutique hotel bar without missing a step.
In short: versatile, comfortable shoes for the day, slightly upgraded shoes for the evening, and a pair that can handle uneven terrain will keep your feet happy and let you focus on soaking up Ireland’s stunning scenery, such as the Wild Atlantic Way’s most epic points.
Swimming in Ireland in September
Even in September, a swimsuit is a smart addition to your suitcase. Ireland is an island, and wherever you travel, you won’t be far from rivers, lakes, or the sea. On the Wild Atlantic Way, the Atlantic Ocean might just tempt you for a quick dip — or at least for a refreshing paddle.
Many Overland Ireland tours include water-based activities like kayaking, where a swimsuit worn under a wetsuit is essential. For those who prefer a more relaxed approach, packing a quick-dry towel and a swim cover-up means you can enjoy a spontaneous lakeside dip, river walk, or even a heated hotel pool with ease.
Tip: Even if you’re not planning to swim, a swimsuit is handy for spa visits or indoor pools at boutique hotels — it’s a small item that opens up a few extra ways to enjoy your trip. Start planning some possible paddles or swims by reading our picks for the best beaches in Ireland.
September in Ireland: Quick Overview
- Average High Temperatures: 63°F (17°C)
- Average Low Temperatures: 50°F (10°C)
- Daylight Hours: 12 to 14 hours
- Weather Highlights: Mild and comfortable, with plenty of sunny spells for exploring. Perfect for hiking, scenic drives, and wandering towns.
- What to Pack: Layers, a lightweight waterproof jacket, comfortable walking shoes, a smarter outfit for evenings, a swimsuit for kayaking or pools, sunglasses, and a scarf or beanie for cooler mornings or evenings.
- Tour Highlights: September is ideal for Overland’s small-group Ireland tours, as the summer crowds have thinned but the landscapes are still lush. Many cultural festivals and outdoor experiences are still running, giving you a rich mix of adventure, food, and heritage.
- Insider Tip: Early September often offers the best combination of warm days, long daylight, and quieter sites. Later in the month, the first hints of autumn color appear across the countryside.
Book Your Tour of Ireland with Overland
Now you know more about what to wear on a trip to Ireland in September, let’s start planning your time here! Head to the Overland Ireland home page and find out more about our experiences.
If you have any follow-up questions for us, please don’t hesitate to get in touch. September is a great time to visit Ireland and we can’t wait to show you our incredible country!
