Reliable weather data for the road ahead.
We help drivers and autonomous vehicles make better decisions for every journey. The Xweather Road Weather API provides comprehensive road condition classifications (dry, wet, slush, snow, and ice), road surface temperature, and water, snow, and ice thickness. With robust documentation and SDKs, integrating road weather data and visuals into your applications has never been easier.
Water
Wet conditions account for nearly three-quarters of all weather-related road accidents. Even a small amount of water on the road reduces grip, and the risk of aquaplaning increases rapidly with heavy rainfall.
Identify dry and wet road conditions
Water film thickness
Snow
Snow is a common winter road hazard causing 17% of weather-related accidents in northern parts of Europe and North America. Unlike water, snow can be present on the road for long periods.
Identify snow and slush road conditions
Snow depth
Ice
Ice typically forms on roads when low temperatures turn morning dew into frost or freeze standing water on the pavement. Although ice is less common on roads than water and snow, it is far more dangerous for drivers.
Identify icy road conditions
Ice thickness
Road weather forecasts for the most demanding use cases.
Infotainment and driver support
Road weather is the key to driver safety with timely hazard warnings and enhances other vehicle systems such as navigation and EV range calculation.
ADAS and AD
Road weather is invaluable in advanced driver assistance (ADAS) and autonomous driving (AD) systems. It provides crucial data on the current and upcoming road surface state to keep drivers informed and in control.
Vehicle systems
Reliable real-time weather data is vital in optimizing systems performance to manage the impact of changing environmental conditions on vehicles.
Fleet management
Timely, relevant road weather data helps fleet operators keep drivers and vehicles safe and informed while maintaining operational efficiency.
Delivery and logistics
Take your route planning and timing to the next level with weather-aware navigation and protect drivers with predictive warnings of upcoming road weather hazards.
Research and simulation
Our comprehensive, real-world data supports the development of advanced driving technology and customer-facing road weather products.
Automotive + Transportation
Water, snow, and ice depth in millimeter level detail.
Sophisticated sensor-based modeling
The Road Weather API is powered by advanced modeling through a proprietary network of road weather sensors, high-quality data sources, and algorithms that predict how environmental conditions and other factors will impact the pavement. Precipitation, solar radiation, traffic, maintenance activities, and the physical attributes of the road all play a significant role.
Our Road Weather API combines these inputs with machine learning to produce an accurate nowcast for the road ahead.
Atmospheric weather
Solar radiation
Traffic
Winter maintenance
Artificial structures
Urban heat islands
// Data you can trust
Ground-truth validated data
Accurate, reliable road weather information makes journeys safer and more comfortable for drivers and passengers. We continuously improve our forecasts by validating our data against ground truth measurements from road weather stations and mobile sensors.
Our solutions are the product of 85+ years of sensor development experience and more than 20 years of road weather forecasting. We work with top-tier vehicle manufacturers and automotive tech companies worldwide to improve driver safety, comfort, and convenience.
Millions of kilometers of road across three continents.
The Road Weather API covers millions of kilometers of road in North America, Europe, and Japan. We model primary and secondary roads separately to reflect the effects of different road surfaces, traffic levels, and maintenance priorities. Bridges are also modeled separately to account for the free flow of air beneath the road surface.
Ready to get started?
Xweather Flex includes access to our roadweather endpoint and raster layer, delivering essential information on road conditions through a summary index (green, yellow, or red) that enables users to gauge driving safety at a glance.
To access endpoints and layers available in the Road Weather or Road Weather Analytics Add-Ons, you must enable them for your subscription, which you can do by signing up here or contacting our sales team.
Road Weather Add-On
Roadway temperatures and conditions across the US, Southern Canada, Europe, and Japan.
Road condition summary: Green/Safe, Yellow/Warning, Red/Danger
Road condition categories: Dry, Moist, Wet, Slush, Snow, and Ice
Road surface temperature
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*Xweather Flex subscription required, starting at $300/mo. Road Weather Add-On endpoints and layers use a 5× access multiplier.
Road Weather Analytics
Everything included with the Road Weather Add-On, plus*:
Snow, ice, and water thickness on the road surface with millimeter-level precision
Probability of dry, wet, snowy, or icy road segments
Risk of aquaplaning
Risk of blowing snow
Risk of fog
Risk of wind-induced rollover
*Endpoints and layers for Road Weather Analytics use a 10x access multiplier.