Reykjanes is where most visitors first drive in Iceland, and it is the least typical stretch of the trip. The peninsula is flat, treeless and mild by Icelandic standards, so what stops traffic is lava, ground cracks and volcanic gas rather than a blocked pass. Route 41 to Reykjavík is kept clear at the country's highest priority. Route 43 to Grindavík is the one that closes.
Roads and 24-hour weather for this region only. Wind is what closes Icelandic roads — read the gust figure, not the average.
Sources: Vegagerðin via umferdin.is and Veðurstofa Íslands via vedur.is. Nationwide picture on our live conditions dashboard. Road line 1777, emergency 112.
Reykjanes is the flat, treeless peninsula that holds Keflavík Airport. It is young basalt end to end, roughly 50 km of it between the terminal and Reykjavík, and almost every Ring Road trip begins and ends by crossing it. No mountain passes, barely any gradient, far less snow than the north or the east.
It is the simplest driving in Iceland for most of the year and the least predictable for the rest. After eight centuries of quiet the peninsula began erupting again in 2021 at Fagradalsfjall, then along the Sundhnúkur crater row north of Grindavík from late 2023. Closures here are announced for lava, ground cracks or volcanic gas rather than weather — the opposite of the rest of Route 1, which catches people out on day one.
Five roads matter here, and they fail in a fairly reliable order.
Route 43 goes first, for volcanic reasons, and Route 425 usually closes with it. Route 42 goes next, for snow. Route 427 follows in drifting wind. Route 41 is last: it serves the airport, sits in the country's highest winter-service class, and its closures are wind closures measured in hours, not days.
| Road | Where it goes | Rough drive | What shuts it |
|---|---|---|---|
| 41 Reykjanesbraut | Keflavík Airport to Reykjavík | 45–50 min | Storm-force crosswind only |
| 43 Grindavíkurvegur | Route 41 to Grindavík, via the Blue Lagoon turn | 15–20 min | Eruption, lava, gas, ground cracks |
| 42 Krýsuvíkurvegur | Hafnarfjörður to Krýsuvík and the coast | 30–45 min | Snow and drifting, low plough priority |
| 427 Suðurstrandarvegur | Grindavík to Þorlákshöfn | 45–55 min | Wind, drifting snow, eruption control |
| 425 Nesvegur | Grindavík to Reykjanesviti and Hafnir | 20–30 min | Eruption, gas, wind-driven spray |
Count on 20 to 25 minutes from the terminal to the Blue Lagoon junction, and about 45 more to central Reykjavík. Collecting a hire car adds 30 to 45 minutes on busy arrivals.
Wind is the everyday hazard, underestimated because the road looks benign. Reykjanesbraut crosses open lava with nothing upwind of it. The stretch between Vogar and Kúagerði is a known crosswind trap, and gusts arrive sideways without warning. A van or a car with a roof box can be pushed a full lane width. Opening a door into a gust is how doors get bent backwards — a classic damage claim here, and one commonly excluded from basic cover, as our note on rental insurance explains. Park facing into the wind and hold the door with both hands.
Volcanic gas is the second. An active fissure puts out large amounts of sulphur dioxide, which drifts downwind as haze and pools in hollows, reaching Reykjanesbær, Hafnarfjörður or the capital depending on the wind. In a car: windows up, ventilation on recirculate, keep moving, do not stop in a dip for photographs.
Fresh lava is the third, and the one that has hurt visitors. A flow that stopped months ago still has a crust that will not hold a person, cavities underneath and heat that ruins boots. The ground around Grindavík also carries fissures and subsidence from the November 2023 dyke intrusion, some narrow enough to disappear under snow.
Closures here are decided fast and lifted fast: police shut Route 43 and the roads around Grindavík within minutes of a fissure opening, then reopen in stages as the flow front stabilises. Check the road status before setting off rather than turning back at a barrier.
There is no useful detour around Route 43. Grindavík, Svartsengi and the Blue Lagoon sit inside the same closure area, so when the road goes the destination has usually gone with it. Route 42 over Krýsuvík and Route 427 in from Þorlákshöfn reach that zone from the other side and close with it. If the lagoon is the reason for the trip, treat it as a booking to move rather than a route to solve — check whether the Blue Lagoon is open and the current eruption status before driving down.
Route 41 is a different problem. It is the only sensible corridor between airport and capital; the coastal roads through Garður and Sandgerði rejoin it anyway. When it is wind-closed the airport buses stop too. Wait in the terminal or in Reykjanesbær rather than attempting Krýsuvík, which is worse in any wind. The road line is 1777; 112 is emergencies only.
Reykjanesbær — Keflavík and Njarðvík run together as one town — is where everything is: fuel stations, most card-operated around the clock, supermarkets, and a dense cluster of airport hotels and guesthouses ten minutes from the terminal. Garður, Sandgerði and Vogar have small stays and little else. Grindavík was evacuated in November 2023 and has recovered only in stages, so do not count on beds, fuel or an open shop without checking first.
Fill up there before going anywhere else on the peninsula. There is no fuel at Krýsuvík, Reykjanesviti or along Suðurstrandarvegur; heading east on Route 427, the next dependable pumps are Þorlákshöfn or Selfoss.
If your flight leaves before about nine in the morning, sleep in Reykjanesbær rather than Reykjavík. A pre-dawn winter run down Reykjanesbraut in a gale, on ice, with a car to return, is the worst 50 km of an otherwise good trip.
From roughly November to April winter tyres are required by law, and hire cars come fitted with them. Reykjanesbraut is cleared early and stays open through weather that shuts roads elsewhere, but light is the real constraint: around the solstice you get four to five usable hours, and the airport run happens in the dark at both ends. Krýsuvík has a low plough priority and can stay white for days after each storm — treat it as a bonus rather than a plan, and read our winter driving guide for the technique.
Spring is the gale season more than the snow season. Deep Atlantic lows keep crossing this coast well into April, and wind warnings on Reykjanesbraut are a spring fixture, not just a midwinter one. Krýsuvík becomes dependable again as the snow goes.
Summer is straightforward: near-continuous light, dry tarmac, Suðurstrandarvegur at its best. Car parks at the lagoon and the eruption viewpoints fill by mid-morning. There are no F-roads anywhere on Reykjanes, so a two-wheel-drive car handles this peninsula in any month.
Autumn turns quickly: the first serious gales in September, the first snow on Krýsuvík in October or November, daylight going fast. From late September, plan the airport leg with an hour of slack.
Yes, on the main roads. The fissures open several kilometres from Reykjanesbraut, and the closures that follow centre on Grindavík, Svartsengi and the Blue Lagoon, plus gas advisories downwind. Follow the closures, not your own sense of how far away the glow looks.
No. There are no F-roads here and every road above is surfaced. A front-wheel-drive car on proper winter tyres is fine; the 4x4 question belongs to the highland routes inland.
Only where an official viewing route is open, on foot from a marked car park. Access changes with the flow direction and the gas forecast. Never walk on a crusted-over lava field, however solid it looks, and never cross a closure line.
Treat it as a date to move rather than a route to work around: there is no alternative approach when Route 43 and the Svartsengi area are shut. Cancellation terms are set by the operator, so check them directly.
Forty-five to fifty minutes of driving to central Reykjavík in decent conditions, an hour and a half in winter or wind. Add the car return, the shuttle and the queue. Most people who miss a flight here lost the time in the car park.