Yellow Wind Warning for South Iceland & Faxaflói Monday Morning

Last updated: 2026-09-21 · Totally Iceland Team

The warning window is 05:00–09:00 on Monday

A yellow wind warning is in force for South Iceland and Faxaflói from 05:00 to 09:00 on Monday 21 September 2026. The most important point for anyone planning an early drive is that the strongest gusts are expected before the ordinary morning travel window is fully under way.

The warning was reported on Sunday night after the Icelandic Meteorological Office highlighted potentially hazardous driving conditions in the southwest. Exposed areas singled out include below Esja, around Hafnarfjall and on the Reykjanes Peninsula, where gusts may reach up to 35 metres per second.

This is a yellow warning, not a forecast of nationwide shutdown. The Icelandic Meteorological Office defines yellow as weather that can have localised impacts and affect travel between areas, and that can become hazardous if precautions are not taken. Yellow warnings are also common enough that they do not automatically mean systematic disruption to transport or public services.

Driving is the main practical concern

For travellers, the biggest issue is not the colour of the warning itself but what strong crosswinds and gusts can do to a vehicle. High-sided vans, campervans and vehicles towing trailers are particularly vulnerable on exposed stretches. Even in an ordinary car, sudden gusts can make doors difficult to control when you stop and can push a vehicle sideways on open roads.

The warning specifically draws attention to hazardous driving conditions overnight and into the morning in parts of the southwest. If your Monday plan starts with an early Golden Circle, South Coast or Reykjanes drive, it is sensible to treat the first few hours of the day as weather-dependent rather than assuming the itinerary will run exactly to schedule.

Do not use this article as a live road-status service. Iceland's Road and Coastal Administration publishes current road and weather information at umferdin.is. Its road-condition information is updated through the day, while automatic weather and traffic measurements can change much faster than a news article can.

South Coast and Reykjanes plans need extra margin

The warning area covers two of Iceland's busiest visitor zones. South Iceland includes the road corridor used for attractions such as Selfoss, the Golden Circle approaches and the South Coast. Faxaflói includes the greater Reykjavik and southwest region, while the highlighted exposed locations include parts of Reykjanes and the routes around Esja and Hafnarfjall.

That does not mean every road in those areas will be unsafe or closed. Conditions can vary dramatically over short distances in Iceland, especially where terrain funnels wind. The useful decision is to check the specific route you plan to drive, not simply the weather icon for Reykjavik.

If you are collecting a rental car early in the morning, allow enough time to look at the warning map and road conditions before leaving the airport or city. If conditions on your route look worse than expected, delaying departure can be a much better option than trying to preserve a tightly timed sightseeing plan.

The broader Monday forecast stays windy and wet

The Icelandic Meteorological Office's country forecast for Monday calls for easterly and southeasterly winds of 10–20 m/s with rain, strongest in the south and on the northern side of Snæfellsnes. Later, winds are expected to turn more southerly at around 8–15 m/s with showers in many areas.

That broader forecast matters because the end of the 05:00–09:00 yellow-warning window should not be interpreted as a promise of calm weather at 09:01. The most acute warning conditions are expected to ease, but Monday remains a windy, wet day in parts of the country.

For a road trip, that means keeping some flexibility after breakfast as well. Waterfalls, coastal viewpoints and exposed car parks can feel far rougher than city streets, and conditions can deteriorate quickly if the wind is channelled by mountains or coastlines.

Secure loose outdoor items before the strongest wind arrives

Residents in the warning area have also been advised to secure loose items outdoors. In strong Icelandic winds, objects such as garden furniture, bins, trampoline parts and hot-tub covers can become airborne or cause damage.

Visitors in holiday homes and cabins should take the same advice seriously. If your accommodation has outdoor furniture, a barbecue cover or other loose equipment, check that it is secured rather than assuming the property owner has already done so for this particular forecast.

The same principle applies when parking. Avoid leaving car doors or boot lids open longer than necessary in exposed areas, and be careful when opening them into the wind.

What a yellow warning actually means in Iceland

Iceland's warning system uses an impact matrix rather than treating every alert as proof that disruption will occur. According to the Meteorological Office, a yellow warning reflects a medium or high likelihood of weather with medium impacts. It can affect travel between areas and may cause damage or accidents if precautions are not taken.

The official guidance also makes an important distinction: yellow warnings should not automatically cause systematic disruption to transport, infrastructure or public services. That is why the best response is proportionate — check your exact route, adjust timing if needed and avoid turning a real hazard into either panic or complacency.

For visitors, this is especially relevant because Icelandic weather can look manageable from a hotel window while conditions on an exposed road 30 minutes away are significantly stronger.

If you are travelling Monday morning, check these two sources

Before you drive, use both of these official services:

• Icelandic Meteorological Office warnings — for the current warning area, timing and any updates to the forecast.
• Traffic Info / Icelandic Road and Coastal Administration — for current road conditions, road weather and route-specific information.

If either source changes after this article was published, the live official information wins. Weather warnings are inherently time-sensitive, and Iceland's conditions can change during a single drive.

Practical checklist for residents and travellers

• Before bed Sunday: secure loose outdoor items if you are in the warning area.
• Before an early drive: re-check the warning map and your exact route, not just a general weather app.
• If you are in a campervan or high-sided vehicle: take exposed-road wind seriously and be prepared to delay.
• At viewpoints and car parks: control doors carefully and avoid standing close to unsecured objects.
• After 09:00: do not assume the entire day becomes calm; the broader Monday forecast remains windy and wet in places.
• If official advice changes: follow the latest Meteorological Office and Road Administration information rather than this page.

For more background on how quickly conditions can change, see our Iceland weather guide, car-rental guide and Reykjanes Peninsula guide.

Sources and verification

This report was checked on 21 September 2026 using current information from the Icelandic Meteorological Office, the Icelandic Road and Coastal Administration and Sunday night's local warning report. Material claims about wind speeds, warning timing and Monday's general forecast are attributed to those sources.

• Icelandic Meteorological Office — warnings
• Icelandic Meteorological Office — regional and national forecasts
• Icelandic Road and Coastal Administration — Traffic Info
• Vísir — yellow wind warning report, 20 September 2026