Your Comprehensive Guide to Visiting Iceland in September

Summer is winding down, autumn is edging in, and September turns out to be one of the best times to see Iceland. Here’s what you need to know — weather, activities, tours, and all the practical details. The crowds have thinned, the colours are shifting, and the quieter side of the country is yours to find.

The Allure of September

September tends to get passed over, but it’s a genuinely rewarding shoulder season in Iceland. Most summer activities are still running — self-drive tours, sightseeing excursions, hiking — and the darker nights have returned, which means the northern lights are back on the table.

That said, accommodation fills up faster than people expect. Book your hotel well in advance, especially if you’re heading anywhere outside Reykjavik. This is a good month to get out into the countryside, whether on a guided tour or behind the wheel of your own rental.

Iceland draws hundreds of thousands of visitors every year, and Guide to Iceland is one of the more reliable sources for local insight — advice put together by people who actually live here, kept accurate and current.

Before you lock in your itinerary, it helps to understand what September actually looks like on the ground. Below you’ll find the essentials: weather patterns, packing advice, activity ideas, and everything else that’ll make the trip worth it.

Key Takeaways

• September ushers in lighter crowds and superior road access.
• Most summer tours and activities remain available.
• Northern lights sightings grow more likely as the nights darken.
• Self-drive travel is still convenient, spanning the Ring Road and numerous remote regions.
• Early bookings for accommodations and popular tours are highly recommended.

Weather in Iceland in September

September sits right at the turn from summer to autumn. Days are generally mild but conditions shift fast — you can have a clear morning and a wet, blustery afternoon. Average temperatures sit around 47°F (8.5°C), with daytime highs near 50°F (11°C) and nights dropping to about 42°F (6°C).

Low-pressure systems — known locally as “haustlægð”, or autumn depressions — start moving through the region. They bring short bursts of strong wind and spells of heavy rain, more so as the month goes on. Keep an eye on weather warnings while you’re here.

Conditions vary a lot by location. Reykjavik tends to run warmer than more exposed coastal stretches. Even so, September holds up well for outdoor activities — sightseeing, hiking, wildlife watching. Dress in layers and bring waterproofs and you’ll be fine.

Daylight in September

The nights are getting longer, but there’s still plenty of daylight to work with. September averages around 12.5 hours of daylight, though that number drops as the weeks pass. On September 1, sunrise is at 6:11 AM and sunset at 8:41 PM. By late September, sunrise has shifted to after 7:30 AM and sunset falls around 7 PM. The shrinking daylight is actually good news if you’re chasing the northern lights — your odds improve considerably towards the end of the month.

What to Pack for Iceland in September

Temperatures are mild but the weather can turn quickly, so pack for both ends of the spectrum. A suggested packing list:

• T-shirts and a pair of shorts
• Warm layers, including fleece and thermal underwear
• A waterproof and windproof jacket and pants
• Sturdy hiking boots for varied terrain
• Warm gloves and a hat to ward off the chill
• Wool or thermal socks
• Sunglasses for bright days

If you need extra gear, there are rental options around the city — particularly on Laugavegur, Reykjavik’s main shopping street, with well-known shops like 66 North.

Driving in Iceland in September

September is one of the better months to be driving in Iceland. The Ring Road, the South Coast, the Snaefellsnes Peninsula, and the Golden Circle are all accessible, and traffic is lighter than it was through July and August.

Highland roads usually stay open into mid- to late September, depending on conditions. If you’re planning to head into remote areas or onto F-roads, check road updates regularly — closures can happen with little notice when the weather turns.

A standard rental car covers most routes, but a 4×4 is worth considering if gravel roads or off-the-beaten-track regions are on your agenda. As daylight shortens later in the month, it’s worth planning your days carefully so you’re not trying to finish long drives or hikes after dark.

Spotting the Northern Lights in September

The northern lights are back in September, and sightings become more frequent as the month moves along. The prime viewing window runs from September through April, when the nights are dark enough and the skies clear enough to catch a display.

You can spot auroras from Reykjavik, but getting away from the city lights makes a real difference. Guided northern lights tours are a practical option — experienced guides track conditions and take you to the best spots. Some hotels also offer wake-up calls if the lights appear overnight.

Prices and Crowds in Iceland in September

September is off-peak, which means cheaper flights, fewer people at popular sites, and more breathing room in general. Tour availability is still strong, so you’ll have more flexibility than you would in the height of summer.

Top 5 Activities in Iceland in September

There are things worth doing in Iceland whatever time of year you visit. With September’s generally decent weather, here are five experiences worth putting on the list:

5. Explore Inside an Ancient Volcano

Iceland has over 300 volcanoes, and some of them you can actually go inside. Descending into the Thrihnukagigur Volcano is one of those experiences that’s genuinely hard to describe — the colours on the magma chamber walls have to be seen to be believed.

4. Go Whale-Watching

Whale-watching runs year-round, but September is toward the end of the summer season, making it a good time to get out on the water before conditions change. Minke whales are the most commonly spotted, and humpback whales put on impressive aerial displays when they surface.

Reykjavik is a convenient departure point, but if you’re serious about sightings, Husavik — often called Europe’s whale-watching capital — is worth the trip north.

3. Kayak Between Icebergs

Summer kayaking sessions are wrapping up, so September is your last real chance to get on the water. A number of tours take you through the Jokulsarlon glacier lagoon, paddling between icebergs at eye level — it’s a different kind of experience entirely.

Sea kayaking in Breidafjordur Bay along the Snaefellsnes Peninsula is another strong option for a memorable day out.

2. Hike Across Dramatic Glaciers

Iceland is one of the best places in the world for glacier hiking, with guided tours running throughout the year. Vatnajokull — Europe’s largest glacier — is a highlight, with tours departing from Skaftafell Nature Reserve taking you across extraordinary ice terrain.

If you want something faster-paced, snowmobile tours are available on various glaciers and cover a lot of ground in a short time.

1. Warm Up With a Hot Spring Soak

Cooler September air and warm geothermal water is a combination that works well. The Blue Lagoon and the Sky Lagoon are both close to Reykjavik and both worth the visit.

In the Golden Circle, the recently opened Laugaras Lagoon has impressive views, while Hvammsvik Hot Springs has a more rugged, natural feel. Guided hot spring tours are also a good way to reach more remote spots if you’d rather not figure out the logistics yourself.

Best Places to Visit in Iceland in September

The Ring Road stays open all year barring severe weather, and September gives you solid access to it and to most major attractions — the Golden Circle, Snaefellsnes Peninsula, Lake Myvatn, and the South Coast among them.

South Coast and Jokulsarlon Glacier Lagoon

The South Coast is one of Iceland’s most-visited routes, and for good reason. Seljalandsfoss and Skogafoss waterfalls, Myrdalsjokull Glacier, and the black sand beach at Reynisfjara are all straightforward to reach. Save time for the Jokulsarlon Glacier Lagoon — a boat ride among the icebergs there is best done before the cold of winter closes in.

The Highlands

Most Highland roads should still be open until mid- to late September, which gives you a narrow window to see the area before it shuts down for winter. Landmannalaugar’s coloured peaks are worth it on their own, and soaking in natural hot springs after a hike in the autumn air is hard to beat.

Whether you drive yourself or join a guided tour, the Highlands deliver landscapes you won’t find anywhere else in the country.

The Westfjords

The Westfjords are among Iceland’s most beautiful regions and among its least visited — and in September, they’re still accessible. The scenic routes and the sense of real remoteness make it feel like a different country.

Dynjandi waterfall and the Latrabjarg Cliff — Iceland’s largest seabird cliff — are worth visiting before winter weather makes access difficult.

Festivals in Iceland in September

As summer slides into autumn, Iceland’s cultural calendar picks up. There’s a good mix of music, art, and film events, particularly in Reykjavik and on the Reykjanes Peninsula.

Ljosanott – The Night of Lights Festival

During the first weekend of September, Keflavik hosts the Ljosanott Festival — a celebration of art and community timed to the darkening autumn days. Local artists fill galleries, there are musical performances, and traditional Icelandic food is on offer throughout.

The moment that draws the biggest crowd comes at dusk, when coloured lights illuminate Bergid cliffs before a fireworks display wraps up the evening.

Reykjavik International Film Festival (RIFF)

The Reykjavik International Film Festival closes out the month with around a hundred films from more than 40 countries shown over 11 days. The programme covers a wide range of genres, and events include orchestra concerts at venues like the Harpa Concert Hall.

Cultural Activities in September

Iceland’s landscape shapes its culture more than most places, and September brings back a couple of traditions worth knowing about: berjamó (berry picking) and rettir (sheep and horse round-ups).

Berjamo – Berry Picking

For many Icelanders, one of the real pleasures of September is heading out into the countryside to pick wild berries. It’s a relaxed, family-friendly way to spend a day — crowberries, blueberries, and bilberries are all in season.

Eat them fresh, make jam, bake them into something, or spoon them over Icelandic skyr. All reasonable options.

Rettir – Sheep and Horse Round-Ups

As the birds head south and summer wraps up, farmers and their families — and often friends and neighbours — head out to round up sheep that have been grazing freely across the countryside all season.

Rettir gatherings have a social side too: trading, settling disputes, catching up. If you’re driving through rural areas in September, you may well come across one. They’re usually welcoming to curious visitors.

Why September Is a Great Time to Visit Iceland

Open roads, smaller crowds, most summer activities still running, and the northern lights making their return — September has a lot going for it. You can move through Iceland at your own pace without feeling like you’re competing with half of Europe for the same viewpoints.

A self-drive around the key sites, a guided multi-day tour, or a shorter trip focused on one region — any of those work well in September. If you want to avoid the peak-season rush but aren’t ready for winter road conditions, this is probably your month.