Iceland’s weather is famously unpredictable. A sunny morning in Reykjavík can quickly shift into a blizzard within minutes. To stay safe, it is crucial for travelers exploring the country to understand how to monitor and read weather forecasts in Iceland and what to do if an alert is issued.

Iceland uses a color-coded alert system: Yellow, Orange, and Red. This critical information is essential to understand before your road trip. As local experts, we know that high-profile vehicles like motorhomes and RVs are particularly sensitive to heavy wind gusts. Understanding these alerts is the most important step in planning a safe journey. In this guide, we decode the Icelandic weather warning system.

Common Weather Hazards in Iceland

Here are key weather hazards in Iceland travelers should know about:

• Strong Wind Gusts: Sudden and often reaching high speeds, wind gusts in Iceland can be dangerous for driving.
• Snow and Blizzards: Heavy snowfall can occur in Iceland, causing poor visibility conditions and sudden road closures.
• Heavy Rain: Due to high winds, heavy rain in Iceland often moves horizontally, creating difficult driving conditions and increasing the risk of slippery road surfaces.
• Icy Roads: Deceptive layers of ice can form on Icelandic roads even when they appear clear. This "black ice" creates extremely slippery driving conditions that require extreme caution.
• Sand and Ash Storms: Most common during dry periods, sand and ash storms in Iceland can severely reduce visibility and cause extensive damage to car paint and windows.

Understanding Iceland’s Weather Alert Colors

When planning to travel around Iceland, it is important to familiarize yourself with the color-coded weather alert system. There are three levels of weather warnings used in Iceland: yellow, orange, and red.

On the Icelandic Meteorological Office homepage (vedur.is), you can find an updated map of the current weather status in the top right corner. Clicking on this small map allows you to access more detailed conditions. The map is divided into regions and selecting a specific area offers detailed information about the current weather and safety situation for that region. 

Let’s dive into what each specific weather warning color means.

Yellow Alert

This is the most common warning issued by the IMO. A Yellow Alert indicates that the weather is becoming mildly to moderately dangerous and may cause disruption to your travel.

While a Yellow Alert doesn't necessarily mean you have to pause your trip entirely, it still means you need to stay vigilant, drive with caution and potentially adjust your route. If you were planning to drive in an area where a Yellow Alert has been issued, we recommend checking the wind speed. If wind gusts exceed 15 m/s, we advise finding a safe place to wait it out.

What to expect during a Yellow Alert:

• Mild to Moderate Hazards: Expect strong winds, heavy precipitation, or limited visibility that can make driving more difficult.
• Road Conditions: Roads may be slippery or partially covered in snow and ice, and some mountain passes might become challenging.

Remember that driving during a Yellow Alert can be difficult and caution is advised.

Orange Alert

An Orange Alert is a serious warning issued when weather conditions are expected to be dangerous, with a high probability of severe weather. During an Orange Alert, we strongly advise you to pause your trip as driving in these conditions can be extremely hazardous.

What to expect during an Orange Alert:

• Significant Hazards: Expect very strong winds, intense snowfall, or zero visibility. These conditions make it difficult to stay on the road, even at low speeds.
• Disruptions: Roads and mountain passes are frequently closed during Orange Alerts. Public transport and flights may also be canceled.

Remember that during an Orange Alert, it is strongly advised to stay indoors. We recommend staying in your current location and avoiding all travel until the Icelandic Met Office lifts the warning.

Red Alert

A Red Alert is the highest and most severe warning issued by the Icelandic Meteorological Office. It indicates extreme weather conditions that pose a significant risk to life and property. When a Red Alert is issued, you must stay indoors.

What to expect during a Red Alert:

• Extreme Hazards: Expect hurricane-force winds, violent blizzards, and zero visibility.
• Total Disruptions: Expect most roads to be closed, and schools, businesses, and airports to shut down.

Remember that during a Red Alert, you should stay indoors, postpone any travel plans, and follow official guidelines from the authorities.

How to Check Weather & Road Conditions in Iceland

Whether you are planning a Ring Road trip, a short drive from Reykjavík, or a journey through the Icelandic Highlands, the success of your journey depends on your ability to interpret weather and road conditions. Assuming a path is clear based on a sunny sky can be a big mistake in Iceland, as roads and mountain passes can close within minutes due to a change in conditions. Luckily, there are several essential tools to help you stay well-prepared. We recommend checking these resources every morning and before every drive to stay ahead of changing conditions.

Recommended websites and resources include:

• Vedur.is: The official website for weather and natural hazards in Iceland. It provides up-to-date forecasts and is the primary source for weather alerts and safety.
• Umferdin.is: The official Icelandic Road and Coastal Administration website. It provides real-time information on road conditions, closures, weather, and live camera feeds.
• Safetravel.is: The official Icelandic source for safe travel. It provides real-time alerts regarding weather, road conditions, and general safety. We recommend also getting the SafeTravel app.

How to Read Wind Forecast in Iceland

The Icelandic Meteorological Office (Vedur.is) is the primary source for weather warnings, wind, and precipitation forecasts. While we have already detailed the weather alert map, it is also crucial to understand the wind forecast.

Wind Speed

In Iceland, unlike many other countries, wind speed is measured in meters per second (m/s). The arrow on the map indicates the direction of the wind and the color scale represents its speed.

• Green variations: Indicate wind speeds between 0-8 m/s.
• Blue variations: Indicate wind speeds between 8-16 m/s.
• Purple variations: Indicate wind speeds between 16-24 m/s.
• Red variations: Indicate wind speeds between 24-32 m/s.
• Brown variations: Indicate wind speeds above 32 m/s

Here are some reference points to give you a better idea of the wind speed hazard level:

• 1-5 m/s: Calm to light breeze. You can enjoy your activities comfortably, driving conditions should be stable.
• 6-10 m/s: Moderate wind. You will start to feel the wind pushing against your vehicle. Always hold your car door with both hands when opening it to prevent damage.
• 11-17 m/s: Strong wind. Driving becomes very challenging, especially for high-profile vehicles like motorhomes and larger campervans. Reduce your speed, stay cautious, and ideally, avoid driving until conditions stabilize.
• Above 18 m/s: Very strong winds. Driving is not recommended. For your safety, we recommend not traveling in these conditions and staying inside until everything settles.

Wind Gusts

While average wind speed tells one story, wind gusts often tell another. Wind gusts are unpredictable, sudden, and strong bursts of wind that can pose a risk while driving and potentially push a car off the road.

These gusts can often reach double the sustained wind speed, meaning a 10 m/s breeze can hide sudden 20 m/s blasts.

Using the SafeTravel.is website, you can easily see alerts regarding wind gusts and driving conditions. This is an essential resource for traveling in Iceland, and we highly recommend checking it along with the Icelandic Met Office website before hitting the road.

Frequently Asked Questions

Understanding Iceland’s weather alerts is crucial for your vehicle rental and your own safety. To help you plan a safe and stress-free journey, we’ve compiled the most common questions travelers might have.

Can I drive during a Yellow Alert in Iceland?

Technically yes, but you should always assess the actual conditions before taking any chances. Expect strong wind gusts that can shake your vehicle, especially high-profile vehicles like RVs. Be cautious, reduce your speed, keep both hands on the wheel, and watch for wind funnels. We also recommend holding onto your doors when opening them.

Is it safe to drive in Iceland during an Orange Alert?

No. During an Orange Alert, weather conditions are considered dangerous, with a high risk of injury and damage to your vehicle. If you have anything planned outdoors, it is highly recommended to reschedule, stay indoors, and wait for the alert to be downgraded.

Can I drive in Iceland during a Red Alert?

Absolutely not. When a Red Alert is issued, you must not travel, as conditions are extremely dangerous. Stay indoors and follow official updates from Vedur.is and SafeTravel.is.

How to check road and weather conditions in Iceland?

Vedur.is, Umferdin.is, and the SafeTravel.is app are your go-to resources when traveling around Iceland. Do not rely on generic phone weather apps, as they often miss local microclimates.

Which month has the most difficult weather in Iceland?

Winter in Iceland, especially from December to March, often brings heavy snow, strong winds, and regular storms. Frequent road closures are common during this period, which is why staying prepared is essential for every traveler.

Ready for a Safe Adventure in Iceland?

Exploring Iceland is an unmatched experience. To make the most of it, it is important to be well-prepared. By understanding weather alerts, road conditions, and using the right tools, you ensure your journey goes smoothly.

To explore the country with total confidence, we recommend that you familiarize yourself with the essentials of safe driving in Iceland before you head out. We have also prepared a detailed guide to help you plan a successful RV trip with the local expertise you need to navigate the country with ease.

If you are ready for the ultimate adventure, explore our vehicles for hire, book your RV rental, and prepare for the experience of a lifetime!