Guide to Iceland in September – The Self-Drive Travel Guide 

September in Iceland is a season of transition. The endless daylight of summer fades into crisp autumn evenings, the first northern lights start to shimmer across the skies, and traditional sheep round-ups take place in the countryside. It’s a time when you can enjoy the best of both worlds: milder weather and accessible roads from summer, combined with darker nights, colorful landscapes, and authentic cultural festivals from autumn.

For travelers, September is one of the most rewarding months to visit. You’ll find fewer crowds than in July and August, while most of the country is still open to explore. Whether you want to watch whales off the coast, hike across glaciers, relax in geothermal pools, or join in on local celebrations, September has it all.

In this guide, we’ll cover everything you need to know for a September trip to Iceland: the weather, packing advice, driving conditions, the best rental cars, top things to do, festivals, and a suggested self-drive itinerary.

• Related readings: Iceland in August; Iceland in October

Table of Contents

• Iceland Weather in September
• What to Pack for Iceland in September
• Driving Conditions in Iceland in September
• The Best Rental Car for Iceland in September
• Is September a Good Time To Go to Iceland?
• Best Things to Do in Iceland in September
• Best Festivals and Events in Iceland in September
• Self-Drive Itinerary for September
• What Does Iceland in September Look Like?
• Frequently Asked Questions

Weather in Iceland in September

The weather in September is a mix of lingering summer warmth and the arrival of autumn chill. While you won’t face the extremes of winter, you do need to prepare for rain, wind, and cooler nights.

The Average Temperature of Iceland in September

Daily highs usually sit between 8°C and 12°C (46°F to 54°F). In southern Iceland and Reykjavík, you might enjoy mild days in the low teens, while northern Iceland tends to be colder, especially by the end of the month. Nights drop close to freezing in some areas, particularly inland or at higher elevations.

The Daylight Hours 

At the beginning of September, you’ll have nearly 14 hours of daylight, but by the end of the month that shrinks to around 12 hours. This balance is one of September’s biggest advantages: long enough days for road trips, but true darkness at night for spotting the aurora.

Is Iceland Cold in September? 

Compared to winter, September is relatively mild, but it’s still colder than many visitors expect. Rainfall is common, and storms can sweep across the island quickly. You won’t see much snow in the lowlands, but mountain tops may begin to turn white as the season progresses.

What to Pack for Iceland in September

Packing for September is all about flexibility. You’ll want to be ready for mild sunshine, chilly winds, and sudden rain showers, which can all happen in the same day. The key is to dress in layers that you can add or remove as needed.

Here are the most important things to pack for Iceland in September:

• Thermal base layers
• Insulating fleece or wool sweater
• Waterproof and windproof jacket
• Sturdy waterproof hiking boots
• Warm hat, gloves, and scarf
• Swimsuit (for hot springs and pools)
• Warm socks
• Waterproof daypack
• Travel adapter (Type F, 230V)
• Camera and binoculars for wildlife spotting

For a deeper dive into year-round essentials, see our full Iceland packing list.

Driving Conditions in Iceland in September

September is one of the easier months for driving in Iceland. The main roads, including the Ring Road and Golden Circle, are free of snow and generally safe to navigate. The South Coast, Snæfellsnes Peninsula, and Eastfjords are all comfortably accessible.

The Highlands of Iceland remain open in early September, though closures can begin by mid-month depending on weather. If you want to experience F-roads, plan your trip earlier in the month and always check conditions before setting out. These rough gravel roads require a 4X4, and river crossings demand both caution and experience.

The biggest challenges in September are wind and rain. Storms can make driving difficult, especially for high-sided vehicles. Always check road.is for live road updates and vedur.is for weather forecasts before driving long distances.

The Best Rental Car for Iceland in September

Renting a car in Iceland provides the freedom to explore Iceland’s natural wonders at your own pace. For most major routes, including the Route 1 Ring Road, Golden Circle, and Diamond Circle, a 2WD compact, economy, or mid-sized car is sufficient. These car types offer good fuel efficiency and are suitable for driving on well-maintained, paved roads. However, if you plan to venture off the main routes or explore the remote Westfjords, a 4X4 vehicle is necessary.

The Westfjords region requires driving on gravel roads and rough terrain, so a 4WD vehicle provides the necessary traction and stability. Plus, if you’re driving on any of the Iceland F-roads, then you’re legally required to have a 4X4. 

When choosing a rental car, consider the size of your group, the amount of luggage you’ll be carrying, and the specific route you intend to take. We recommend booking your rental car in advance, especially during the popular travel season in September, to ensure both availability and the best rates for your rental car. For more information on choosing a rental car, have a look at our Iceland car rental tips. 

Is September a Good Time To Go to Iceland?

Yes, many travelers and locals consider September one of the best months to visit. Here’s why:

• Northern lights return – With dark nights, the aurora season begins.
• Mild weather – You avoid the extremes of winter while still enjoying crisp, fresh air.
• Accessible roads – Most of the country remains open, including the highlands early in the month.
• Authentic culture – Rettir round-ups and festivals give a window into Icelandic life.
• Smaller crowds – Peak summer tourism is over, meaning less crowded attractions and more affordable prices.

Best Things to Do in Iceland in September

September in Iceland offers a wide range of activities and attractions to explore in Iceland. Here are some of the must-visit destinations and experiences:

1. Whale Watching

September is an excellent time for Iceland whale-watching excursions. Tours from Húsavík, Akureyri, and Reykjavík often spot humpbacks, minke whales, dolphins, and even orcas. The cooler weather tends to bring more activity close to the surface, making for memorable sightings.

Check out our whale-watching tour options here.

2. Glacier Hiking

With conditions still stable, September is one of the last months of the year for glacier hiking before winter storms set in. Guided tours on Sólheimajökull, Vatnajökull, or Langjökull let you walk across blue ice, crevasses, and dramatic formations.

• Related reading: Iceland Glacier Hiking Guide

3. Snorkeling or diving

Þingvellir National Park’s Silfra fissure is famous for its crystal-clear water and unique location between two tectonic plates. September’s water remains steady at about 2°C, but drysuits make snorkeling or diving possible for anyone who wants to tick this rare experience off their bucket list.

4. Visit Iceland Hot Springs

Iceland is famous for its geothermal activity, which is best to experience at one of the many Iceland hot springs and geothermal swimming pools. You will have the chance to relax in the soothing waters and experience the rejuvenating and healing powers of mineral-rich waters.

The iconic Blue Lagoon, Myvatn Nature Baths, and Secret Lagoon are some of the most visited geothermal pools in the country. But there are also many isolated and hidden hot springs like Grímsfjall Hot Spring and Hveravellir Geothermal area in the Highlands.

5. Self-Drive Road Trip

The best way to experience Iceland in September is on a self-drive road trip. A self-drive trip gives you and your group the chance to explore Iceland’s diverse landscapes, from majestic waterfalls to volcanic landscapes, and you might also see some Icelandic horses on the side of the road.

Create your own Iceland itinerary, whether you want to drive along the scenic Ring Road, explore the stunning Snæfellsnes Peninsula, or venture into the remote Westfjords. The flexibility of a self-drive trip allows you to discover hidden gems, take spontaneous detours, and soak in the natural beauty of Iceland.

Top Festivals and Events in Iceland in September

September in Iceland may be one of the slower months, but there are still some exciting festivals and events that take place. Here are a few of the most popular ones:

Reykjavik International Film Festival – RIFF

Held from late September into early October, RIFF is Iceland’s most prestigious film festival. It showcases everything from international premieres to indie gems, with screenings, panels, and filmmaker Q&As across Reykjavík. creenings take place in cinemas, museums, and even more unconventional spaces, giving the whole festival a creative edge.

Reykjavik Jazz Festival

Founded in 1979, the Reykjavík Jazz Festival is one of the oldest and most respected jazz festivals in Europe. Every September, the capital transforms into a stage for world-class jazz musicians from Iceland and abroad. Concerts are hosted in both intimate clubs and large venues, making it easy to catch a performance no matter your budget or schedule. It typically takes place very early September or right at the end of August, depending on the year.

Rettir – Sheep and Horse Round-Ups

September is the ideal time to witness one of Iceland’s oldest traditions: réttir (pronounced “rhett-tur”). Each autumn, farmers gather the hundreds of thousands of sheep that have been grazing freely in the mountains all summer and herd them back to their farms before winter. About 386,000 sheep roam Iceland, so this is no small task.

Though once a matter of survival, today réttir is as much a celebration as it is a chore. Families, neighbors, and even visitors join together, with people of all ages wading through the sheep to help sort them. The day often ends in festivities with music, coffee, cakes, and Iceland’s traditional kleinur doughnuts. Impromptu singing is common, and the atmosphere is one of community, tradition, and a touch of chaos.

If you have the chance, attending a réttir is one of the most authentic cultural experiences you can have in Iceland. Dates vary by region, starting in the north in early September and moving south through the month.

EVE Online Fanfest

For something completely different, Reykjavík also hosts the EVE Online Fanfest, dedicated to Iceland’s most famous online game. Thousands of players gather from around the world to attend developer panels, tournaments, cosplay competitions, and social events. It’s a fascinating example of Iceland’s role in global gaming culture and a great reminder of the country’s modern, tech-savvy side.

Ljósanótt – The Night of Light

Held in Reykjanesbær on the first weekend of September, Ljósanótt (the “Night of Light”) is one of the country’s biggest community festivals. It marks the end of summer and the beginning of autumn with live concerts, art exhibitions, parades, workshops, family activities, and food stalls. The festival culminates in a dazzling fireworks show that lights up the darkening skies. It’s a celebration that blends small-town charm with large-scale energy, and it’s especially popular among locals.

Vaka Folk Arts Festival

Hosted in Reykjavík, the Vaka Folk Arts Festival focuses on preserving and celebrating Icelandic and Nordic traditions. Visitors can watch performances of old Icelandic ballads, storytelling, and traditional dance, or attend workshops in handicrafts like weaving and woodcarving. The atmosphere is warm and community-driven, with performers and artisans from across the North Atlantic region. For travelers, it’s a chance to step into the past and connect with Iceland’s living cultural heritage.

Suggested 7-Day Self-Drive Itinerary for Iceland in September

Day 1: Reykjavík & Sky Lagoon
Arrive in Reykjavík, stroll through the city center, visit Hallgrímskirkja and Harpa Concert Hall, and end the day with a soak at the Sky Lagoon.

Day 2: Golden Circle & Secret Lagoon
Tour Þingvellir National Park, stop at Geysir and Gullfoss, and, if you’re adventurous, snorkel Silfra. Finish with a dip in the Secret Lagoon.

Day 3: South Coast Waterfalls & Beaches
Drive to Seljalandsfoss and Skógafoss, then walk the black sands of Reynisfjara Beach. Overnight near Vík.

Day 4: Glacier Adventures
Join a guided glacier hike at Skaftafell, then continue to Jökulsárlón Glacier Lagoon and Diamond Beach. Overnight in Höfn.

Day 5: Eastfjords Scenic Drive
Travel through the Eastfjords, stopping at fishing villages and spotting reindeer. Overnight in Egilsstaðir.

Day 6: North Iceland – Whale Watching & Mývatn
Take a whale watching tour in Húsavík or Akureyri, then explore the geothermal landscapes around Lake Mývatn and relax in the Mývatn Nature Baths.

Day 7: West Iceland & Return to Reykjavík
Drive back to the capital, stopping at Hraunfossar and Barnafoss waterfalls. If your timing aligns, join a Rettir celebration or attend RIFF events before departure.

What Does Iceland in September Look Like?

Imagine waterfalls framed by autumn colors, sheep herds moving down from mountain pastures, and the first northern lights glowing across a dark sky. September in Iceland is filled with contrast: crisp mornings, golden sunsets, and cool evenings spent in hot springs. It’s the season where summer and winter briefly meet, offering something for every traveler.

FAQs

• • Is September a good month to go to Iceland?
    Yes, September is one of the best months to visit Iceland. You’ll still have relatively mild weather and plenty of daylight hours (about 13–14 hours at the beginning of the month, tapering to 11 by the end).

 

• • Can I see Northern Lights in September in Iceland?
    Yes. September marks the beginning of the Northern Lights season in Iceland. Nights are finally dark enough to see the aurora, especially in the second half of the month. Your chances improve if you head outside of Reykjavík and avoid light pollution on clear nights.

 

• • Can it snow in September in Iceland?
    Snow is rare in September, but not impossible. In lower elevations and around Reykjavík, it’s very unlikely, but in the mountains and the Highlands, you may encounter early snowfall toward the end of the month. Most travelers won’t experience heavy snow at this time.

 

• • Is Iceland expensive in September?
    Iceland is always a relatively expensive destination, but September is slightly more affordable than the high summer months. Accommodation and car rental rates usually drop compared to July and August, though they remain higher than winter prices.

 

• • Will I see whales in Iceland in September?
    Yes, September is still a great month for whale watching. Many tours run from Reykjavík, Húsavík, and Akureyri. You may spot humpback whales, minke whales, dolphins, and even orcas, though sightings always depend on luck and weather conditions.

 

• • Can you swim in the Blue Lagoon in Iceland in September?
    Absolutely. The Blue Lagoon and other geothermal spas maintain their warm, soothing water year-round. In September, the air is cool but not freezing, making the hot water feel especially relaxing.

 

• • Are roads icy in Iceland in September?
    Generally, no. Roads in September are not icy, and main routes like the Ring Road are safe to drive. However, the weather can change quickly, and you may encounter wet, windy, or foggy conditions. If you venture into the Highlands, some F-roads may already be closed by late September due to early snow or poor conditions.

 

• • Does it rain a lot in Iceland in September?
    Yes, September is one of the wetter months in Iceland. You can expect frequent rain showers, especially in the south and west. It usually comes in bursts rather than all-day downpours, so with the right waterproof gear, you can still enjoy your trip comfortably.

 

Ready to Explore Iceland in September?

September is one of the most rewarding months to experience Iceland. From whale watching and glacier hikes to cultural festivals and the northern lights, you’ll get a mix of summer adventure and autumn charm.The best way to explore is with a rental car, giving you the freedom to follow your own route. Book your Iceland rental car online and in advance with Hertz Iceland to secure the perfect vehicle for your September self-drive journey.

Rent a Car in Iceland Today!