September in Iceland marks the transition from summer to autumn, offering a unique blend of crisp air, stunning landscapes, and fewer crowds than the peak summer months. But just how cold is it? This guide will help you pack appropriately and prepare for your Icelandic adventure in September.
Average Temperatures in Iceland During September
Iceland's weather is notoriously unpredictable, even more so in the shoulder seasons. While you can expect cooler temperatures than in July or August, the specifics vary considerably depending on location and even daily fluctuations.
- Coastal Areas: Expect average highs around 10-12°C (50-54°F) and lows around 5-7°C (41-45°F). However, strong winds can make it feel significantly colder.
- Highlands: Temperatures in the highlands are considerably lower, often dropping below freezing, especially at night. Snow is possible, even in early September, in higher elevations.
- South Coast: The south coast generally experiences milder temperatures than the highlands, but wind is a constant factor.
- Reykjavik: Iceland's capital city typically sees slightly higher temperatures than other areas, with highs averaging around 11-13°C (52-55°F) and lows around 6-8°C (43-46°F).
Important Note: These are just averages. Be prepared for sudden changes in weather, including rain, wind, and even occasional snowfall, particularly in the highlands.
What to Pack for Iceland in September
Packing for Iceland in September requires careful consideration of the unpredictable weather. Layering is key!
- Warm Base Layers: Merino wool or synthetic thermal underwear will keep you warm and dry.
- Mid-Layers: Fleece jackets or sweaters are essential for added insulation.
- Waterproof Outer Shell: A waterproof and windproof jacket and trousers are absolutely crucial.
- Warm Socks: Bring plenty of warm, wool socks to keep your feet dry and comfortable, especially if you plan on hiking.
- Hat, Gloves, and Scarf: Even if the temperature isn't extremely low, wind can make it feel significantly colder.
- Sturdy Waterproof Hiking Boots: Essential for exploring Iceland's diverse landscapes.
- Swimsuit: Many hotels and geothermal pools offer the perfect opportunity to warm up after a chilly day exploring.
Is Iceland Cold in September for Activities?
Despite the cooler temperatures, September remains an excellent time to participate in many popular Icelandic activities. Here's a look at how the weather may affect your plans:
Hiking in Iceland in September
Many hiking trails remain accessible in September, though higher altitude trails may be snow-covered or inaccessible. Always check trail conditions before setting out and be prepared for changing weather. The stunning autumn colors make for unforgettable hikes.
Whale Watching in September
Whale watching tours operate throughout September, offering excellent opportunities to spot various whale species. However, be prepared for chilly conditions on the boat.
Visiting the Northern Lights in September
While the Northern Lights are more likely to appear later in the autumn, late September offers a chance of seeing this spectacular display, particularly in the north of the country. The long nights increase your chances.
Exploring Geothermal Areas in September
Geothermal areas like the Blue Lagoon and Geysir are enjoyable year-round, offering a welcome contrast to the cooler outside temperatures.
Planning Your September Trip to Iceland: Key Considerations
- Check the forecast regularly: Icelandic weather is notoriously changeable. Checking the forecast frequently will allow you to adjust your plans accordingly.
- Be prepared for all types of weather: Pack layers, waterproof clothing, and sturdy footwear.
- Book accommodations and tours in advance: September is still a popular travel month, so booking ahead is recommended.
- Rent a 4x4 vehicle if you plan to explore the highlands: Many highland roads are only accessible by 4x4 vehicles, and even then, conditions can change quickly.
By understanding the average temperatures and packing appropriately, you can enjoy a fantastic trip to Iceland in September. Remember to embrace the unpredictable weather and be prepared for anything – that’s part of the Icelandic adventure!
