Driving in Iceland in September
September is autumn compressed into 30 days: full aurora nights, golden birch valleys, dramatically fewer tourists - and the year's first real storms. Lowland driving stays easy; the highlands close road by road. The best month for travelers who want both landscapes and lights without winter driving.
15 down to 11½ hours, losing ~7 min/day
+5 to +11 °C in the lowlands; first frosts inland
Closing season: remote routes (Askja area first) start shutting from early-to-mid September as snow returns to the interior; most are closed by early October. If the highlands matter, go in the first half of the month and check daily.
In full swing - statistically elevated activity around the equinox, and mild nights make waiting outdoors pleasant.
What’s open and driveable
All paved roads remain in good condition; the Ring Road is comfortably driveable all month. Expect the season's first weather warnings - usually wind and rain rather than snow - and the first dustings on northern passes late-month.
Typical conditions
The réttir sheep round-ups fill rural roads with drives of sheep (and festive farmers) through the month - a genuine spectacle and a genuine traffic event. Storms arrive as Atlantic lows: heavy rain and gale-force gusts, gone in a day. Between them, September serves the year's most photogenic combination of snow-dusted peaks, red heath and green lowlands.
September driving tips
- Equinox weeks (mid–late September) are statistically the aurora's strongest of the autumn.
- Meeting a réttir sheep drive: stop fully and let it flow around you - it's the best traffic jam you'll ever sit in.
- Front-load highland plans into early September; closures come with little notice once interior snow starts.
- Re-pack for wind: the season's first gale warnings are usually a September event.
Common questions
Is September a good time for a Ring Road trip?
One of the best: full access, autumn colours, aurora nights, and far fewer vehicles than summer. You accept a higher chance of losing a day to a rainstorm, and highland side-trips get riskier as the month ages.
When do F-roads close in September?
Gradually and unpredictably - remote interior routes can close from early September after the first snowfall, while lower routes often last into early October. There's no fixed date; the live F-road status page is the only reliable answer.