Iceland is bracing for an extraordinary weather event this weekend, with forecasters warning of rainfall up to nine times the monthly average across parts of the country. The alert, issued by Veðurstofa Íslands — Iceland’s Meteorological Office — represents one of the most significant precipitation warnings issued in recent years, and it carries direct consequences for travellers and residents alike.
Key takeaways
- Rainfall up to nine times the seasonal average is forecast for this weekend across Iceland.
- The South and West regions face the highest risk of flooding and road disruption.
- Veðurstofa Íslands has issued formal weather warnings; conditions may escalate to orange or red alert level.
- Travellers should monitor road.is for real-time closures and check with airlines for potential disruption.
- The event is part of a broader pattern of extreme weather that has already brought record heat and damaging winds to Iceland in 2025.
How Much Rain Is Expected in Iceland This Weekend?
The volume of rainfall forecast is exceptional by any measure. Veðurstofa Íslands is tracking a deep Atlantic low-pressure system pushing a sustained moisture plume directly over the island. In practical terms, some areas could receive in a single weekend what would normally fall over the course of a month — or, in the most exposed locations, close to nine times a typical weekend total.
Precipitation of this scale is not unheard of in Iceland, but it is rare. The country’s southern lowlands and western fjord-facing slopes are the most vulnerable, because orographic lift — the process by which moist air is forced upward by terrain — intensifies rainfall sharply as clouds hit rising ground. The result is that rain does not fall evenly: valleys and coastal plains closest to the incoming system’s track will bear the heaviest burden.
Officials have not yet published a single confirmed millimetre total for every location, because the exact track of the low still carries some uncertainty. However, the language used in Veðurstofa’s bulletins is unusually strong, and the office is urging the public to take the forecast seriously.
Which Parts of Iceland Will Be Worst Affected?
The southern and western parts of Iceland face the greatest exposure. That includes the South Coast — the stretch of Ring Road between Vík í Mýrdal and Selfoss that is already prone to flash flooding and glacial river surges — and the western approaches around Borgarnes and Snæfellsnes. The Westfjords (Vestfirðir), which jut into the North Atlantic and catch the full force of approaching Atlantic systems, are also at elevated risk.
- South Coast (Suðurland): Flash flooding risk on low-lying roads; glacial rivers including Þórsa and Ölfusá may rise rapidly.
- Reykjanes Peninsula: Urban drainage systems in and around Reykjavík could be overwhelmed by intense short-duration bursts.
- West (Vesturland) and Snæfellsnes: Landslide risk on steep hillsides; some mountain roads may become impassable.
- Westfjords (Vestfirðir): Remote roads with limited maintenance capacity; some routes may close without advance warning.
- Highlands (Hálendið): Interior F-roads, already restricted to four-wheel-drive vehicles, are likely to become hazardous or fully closed.
The North and East are expected to receive less rainfall overall, though conditions can shift quickly as storm systems move across the island.
Are There Travel Warnings or Road Closures Due to the Rainfall?
Veðurstofa Íslands has issued formal weather warnings, and the Icelandic Road and Coastal Administration (Samgöngustofa) is monitoring conditions continuously. Road closures are expected, but because the storm is still approaching, specific routes have not all been confirmed as closed at the time of writing.
Travellers should check road.is — the official real-time road condition site operated by the Icelandic Transport Authority — before any journey this weekend. The site shows live closures, warnings, and passability ratings for every major route, including F-roads in the Highlands. It is available in English.
Key practical steps for travellers this weekend:
- Check road.is before every journey, including short day trips from Reykjavík.
- Contact your accommodation directly — some rural guesthouses in the South and West may advise guests to arrive early or delay travel.
- If flying into or out of Keflavík International Airport (KEF), monitor your airline’s app for delays; strong crosswinds and low visibility often accompany this type of system.
- Do not attempt to cross flooded roads. Iceland’s glacial rivers can rise faster than drainage systems can respond, and seemingly shallow water can conceal powerful currents.
- Register your travel plans with safetravel.is, the Icelandic Search and Rescue (ICE-SAR) trip registration service — a free, two-minute process that could save your life.
Could Flooding Occur in Reykjavík or Rural Areas?
Yes — both urban and rural flooding are considered realistic outcomes. In Reykjavík, the risk is primarily from overwhelmed storm drains during peak rainfall intensity. The capital’s drainage network was not designed for rainfall events of this magnitude. Low-lying streets in older neighbourhoods, and underpasses near the harbour area, are historically the first to flood during heavy rain.
In rural areas, the risk is more severe and harder to manage. Iceland’s South Coast sits between the Atlantic Ocean and a row of glaciers — Mýrdalsjökull and Eyjafjallajökull among them — whose outwash plains (sandar) channel meltwater into rivers that can rise metres in hours. Even without any glacial melt contribution, a ninefold rainfall event is enough to push rivers like Þórsa and Markarfljót to near-flood stage.
Farmers and landowners in the South should move livestock and equipment to higher ground as a precaution. Campsite operators along the South Coast, particularly around Skógar and Vík, are advised to review site safety plans before guests arrive for the weekend.
When Will the Heavy Rain Arrive and How Long Will It Last?
The heaviest rainfall is expected to move in from the southwest on Friday evening and intensify through Saturday. The core of the system — the period of most intense precipitation — is currently forecast to pass over Iceland between Saturday morning and Sunday afternoon, though the exact timing will tighten as forecasters track the low-pressure centre through the North Atlantic.
By Sunday evening, conditions are expected to begin easing across the South and West, though residual heavy showers and elevated river levels will persist into Monday morning in many areas. The Westfjords may see the system clear more slowly, given their exposure to northwesterly flow on the trailing edge of the storm.
This event arrives as part of a wider pattern of extreme weather in Iceland in 2025. Earlier this year, the country recorded unusual warmth and damaging wind events. Meteorologists at Veðurstofa have noted that the frequency of high-intensity precipitation events has increased in recent years, consistent with broader North Atlantic climate trends.
What to Do If You Are Already in Iceland
If you are currently travelling the Ring Road or planning a weekend trip to the South Coast, consider adjusting your schedule. The stretch of Route 1 between Selfoss and Vík is particularly exposed — it crosses multiple glacial rivers on low bridges, and even moderate flooding can make it impassable.
Anyone staying in the Westfjords should top up on fuel and supplies before Saturday morning, as some smaller communities there have limited services and road access can be cut for 24 hours or more during serious events.
Travellers who need emergency assistance in Iceland should call 112, the national emergency number. The Icelandic Association for Search and Rescue (Landsbjörg) operates a network of volunteers across the country and can respond even in remote areas.
Frequently Asked Questions
Is it safe to drive the Ring Road in Iceland this weekend?
Driving the Ring Road this weekend carries elevated risk, especially on the southern section between Selfoss and Vík í Mýrdal. Glacial river bridges on this stretch can become hazardous or impassable during extreme rainfall. Check road.is for live road conditions before departure and be prepared to delay or reroute your journey.
Will Keflavík Airport be affected by the rainfall?
Keflavík International Airport (KEF) itself is unlikely to close entirely, but strong winds and low visibility associated with the incoming system may cause delays and diversions. Check directly with your airline and monitor the Isavia (airport operator) website for live terminal updates. Allow extra time for ground transport to and from the airport.
How does this rainfall compare to a normal Icelandic weekend?
Forecasters are warning of up to nine times the average rainfall for this period — an exceptional figure. Iceland’s South Coast is already one of the wettest regions in Europe, with some areas receiving over 3,000 mm of precipitation annually. A ninefold event in a single weekend would push totals far beyond anything most infrastructure or drainage systems are built to handle.
Should I cancel my trip to Iceland this weekend?
Cancellation is a personal decision, but travellers with flexible plans may wish to postpone outdoor activities, particularly hikes, waterfall visits, and South Coast driving tours. Indoor Reykjavík tourism — museums, pools like Sundhöllin, restaurants — is largely unaffected by rain. If you do travel, register your itinerary at safetravel.is and stay informed via road.is throughout your trip.
Where can I get the latest official Iceland weather warnings?
The most authoritative source is Veðurstofa Íslands, the Icelandic Meteorological Office, at en.vedur.is — the English-language version of their site is fully updated alongside the Icelandic one. Road conditions are tracked at road.is, and travel safety registration is available at safetravel.is. All three sites are free and updated continuously during weather events.
