
Seasonal Weather Prediction | Horizon AI S2S
STAY AHEAD WITH ACCURATE SEASONAL WEATHER PREDICTION
Step into a new era of weather forecasting with our groundbreaking Horizon AI Subseasonal to Seasonal forecasting products. With our innovative AI approach, we’ve redefined the standards of resolution, timescales and probabilistic forecasting to provide you with the most accurate weather insights available on the market.
Forecasting For The Extremes in Weather
With the increased variability and intensity in weather patterns we now face, businesses across industries are grappling with the impacts of unpredictable conditions. In this volatile atmosphere, traditional forecasting methods fall short, unable to provide the level of accuracy and foresight necessary for effective decision-making. Weekly subseasonal to seasonal forecast updates and limited resolution leave organizations vulnerable to costly disruptions and missed opportunities.
Climavision rises to meet this pressing need with a revolutionary approach to weather forecasting. Our Horizon AI Subseasonal to Seasonal model, trained on vast amounts of historical data, delivers daily forecasts with performance that exceeds the ECMWF, giving you the confidence to act sooner.
When compared to the ECMWF SEAS5 model globally with 1 month lead time, Horizon AI S2S delivers consistently better accuracy and reliability:
Higher ACC and CRPSS mean stronger forecast correlations and skill scores, while MAE improvements indicate reduced forecast error—giving you more reliable seasonal-to-subseasonal outlooks.
Product Features
- Decades of back testing data, and informed on 15,000 years of simulations
- A suite of validation metrics, validation from back testing available in the API
- Integrates ERA5, and extensive climate simulations
- AI forecasts utilizing advanced neural networks developed entirely in-house
Product Benefits
- Build forecasts for your specific use case
- Delivers daily forecasts with performance that exceeds the ECMWF
- Have access to the most current data, enhancing decision-making and operational planning
- Comprehensive API Access for detailed forecasting data, validation metrics, and easy integration into user systems

Horizon AI S2S Product Specifications
- Domain: Global
- Resolution: Gridded 100km, monthly resolution out to 2 years
- Variables: Temperature, Wind Speed, Precipitation, Solar Irradiance
- Timescale Range: 1 month – 2 years
- Frequency: Updated Daily
- Access: API or visual map
- Output: Probabilistic output, giving probability density function distribution for any of the above weather variables



Climavision Case Studies
A Season Ahead: Horizon AI S2S Forecasts Summer Grid Stress
The summer of 2024 brought persistent heat and wind anomalies across the ERCOT region—conditions that strained grid operations and energy markets. Horizon AI S2S delivered early, consistent signals of these seasonal patterns months in advance, outperforming SEAS5 in both temperature and wind outlooks. These insights helped users better prepare for demand spikes and optimize renewable energy strategies.
How Does Better Subseasonal to Seasonal Forecasting Benefit You?
Extreme weather events impact a wide range of business operations across a number of industries. Decision makers need reliable forecasts customized to their specific use case with easily explainable results. Stop wasting time and money on standard weather forecasts that don’t fit your specific needs. The Horizon AI Subseasonal to Seasonal high-resolution weather model’s superior accuracy can help your organization with:
- Optimizing operations and resource allocation
- Better anticipating and mitigating weather-related risks
- Reducing weather-related downtime
- Optimizing energy consumption
- Maintaining a competitive edge
Climavision’s Horizon AI S2S Predictive Solution
Every weather provider claims to be the most accurate. Yet everyone is approaching forecasting the same way and producing the same standard forecasts. Horizon AI Subseasonal to Seasonal weather model and forecasting solution uses a revolutionary approach that produces verifiably more accurate results for your use case.
- Comprehensive Data Integration
- Forecasts are updated daily
- Model accuracy is verified with millions of observations daily
Climavision ensures forecasts are not only accurate but also understandable, aiding in better decision-making and giving you an edge over your competition.
Enhanced Efficiency
By leveraging probabilistic forecasts, organizations can better anticipate and mitigate weather-related risks, improving overall efficiency and minimizing disruptions.


Competitive Advantage
Access to advanced forecasting capabilities provides organizations with a competitive edge, allowing them to stay ahead of the curve, adapt quickly to changing conditions, and capitalize on opportunities.
WE’RE REVOLUTIONIZING THE WEATHER INDUSTRY
Our extensive weather data and revolutionary, AI-driven climate technologies identify real-time dangers and produce more accurate predictions and forecasting models.
Learn More About What Makes Us Different

Radar Network
First of its kind, supplemental nationwide, high-resolution, dual polarity radar network

Advanced Modeling
Advanced global numeric weather prediction modelling with unprecedented computational capabilities

Observational Datasets
More unique and novel observational datasets assimilated via AI for faster, more accurate forecasts

Technical Expertise
Unparalleled technical expertise across infrastructure, machine learning, cloud and supercomputing