September · Iceland
Best time to visit Landmannalaugar in September Weather, crowds & prices
Weather in Landmannalaugar in September
Average temperature 5°C, 163 mm of rain, about 0 days with 6+ hours of sunshine and 90% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
3.6/10
Ranked #6 of 12 months
- Avg temp
- 5°C
- Rainfall
- 163 mm
- Humidity
- 90%
- Days with 6h+ sun
- 0
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Landmannalaugar scores 3.6/10 for nature and wildlife travel - an above-average month (#6 of 12). Expect around 5°C, 163 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Landmannalaugar paints the highlands in rhyolite ridges-hot springs, lava fields, and the Laugavegur trek start. Best window: the short high-summer window when daylight peaks.
September in Landmannalaugar: expect compromises
September averages 5°C (40°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 163 mm this is a genuinely wet month: almost no days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 3.6/10 here, 6th of 12 months, against 7/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Plan for mid-season pricing, with crowds are moderate.
Flexible dates? July scores 3.4 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Landmannalaugar in September?
- In September, Landmannalaugar averages 5°C, 163 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 3.6/10.
- Is September a good time to visit Landmannalaugar?
- September earns a 3.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Landmannalaugar in September?
- Expect about 163 mm of rain in September. Average humidity is 90% and there are about 0 days with 6+ hours of sunshine.
Curated in Landmannalaugar
Tickets & experiences
Things to do in Landmannalaugar
Landmannalaugar, Iceland. Live activities and tours from GetYourGuide, matched to this destination.