Weather API

Accurate weather forecasts
to facilitate your decision-making

Global weather forecast API

Enhance your decision-making with hyper-accurate weather forecasts integrated directly into your apps.

High-quality forecasting API by weather professionals for critical decision-making 

Frogcast’s team of seasoned meteorologists have developed a unique know-how in forecasting models in different regions and improving their reliability over time.

Accuracy and innovation in the DNA: it’s the only weather API service providing probabilistic forecasts (quantiles) for every data point! 

It is extremely easy to integrate Frogcast’s weather data via API into your solution to improve performance and user experience. 

70%

of business activities are sensitive to weather conditions

3/4

of the world's population has a limited access to reliable and actionable weather information

80%+

of companies are frustrated that weather predictions are not accurate enough

Frogcast weather API's benefits

Premium accuracy 

Unique know-how in the combination of multiple forecasting models, optimized by meteorologists and AI for the most accurate weather forecasts over 15 days with 1-min interval. 

Ultra-local resolution 

Up to 1km weather forecasting modelling and 90 m topographic resolution to retrieve data exactly where you need it. 

Smart probabilistic forecasts 

10 confidence intervals (quantiles) provided for every forecast parameter so you have richer weather information to improve your applications. 

Global coverage 

Weather intelligence provided everywhere in the world, with region-dependent forecasting modelling for better local relevance.

Easy integration 

API integration into your application made easy-to-use, with no code development required. 

Data access flexibility 

26 meteorological variables to meet your needs closely, with no usage limitation and possibility to go further with tailored forecasts working together with our R&D team.

They trust Frogcast’s weather API 

"Our developments require great precision and high availability. We chose Steadysun, which uses Frogcast forecasts, for the accuracy of their predictions all around the world and the reliability of their application."

David Duca

Head of Solar Technologies Division, Alternative Energies and Atomic Energy Commission (CEA) 

"Thanks to Steadysun's temperature forecasts, we can better anticipate heat requirements and define the optimal commitment of our production resources. This enables us to increase the share of renewable energy in our mix and thus limit our CO2 emissions"

Loïc Giraud

Project Engineer, Grenoble Heating Company (CCIAG)

"Our developments require great precision and high availability. We chose Steadysun, which uses Frogcast forecasts, for the accuracy of their predictions all around the world and the reliability of their application."

David Duca

Head of Solar Technologies Division, Alternative Energies and Atomic Energy Commission (CEA) 

"Thanks to Steadysun's temperature forecasts, we can better anticipate heat requirements and define the optimal commitment of our production resources. This enables us to increase the share of renewable energy in our mix and thus limit our CO2 emissions"

Loïc Giraud

Project Engineer, Grenoble Heating Company (CCIAG)

Subscription plans

Start for free or choose the plan that fits your needs.
You can change plan any time.

FREE

400 requests

15-day forecasts

Real-time weather

Probabilistic forecasts

All weather parameters

Worldwide coverage

API access

Graphic visualization

Email and Chat support

€0

START FOR FREE

WEATHER API SUBSCRIPTIONS

6 bundles of API requests depending on your needs

15-day forecasts

Real-time weather

Probabilistic forecasts

All weather parameters

Worldwide coverage

API access

Graphic visualization

Technical support

From

€5

per month

GET REQUESTS

custom

Technical support

Customized data modelling

Procurement process

Large volume discounts

Do you have specific needs? Do you have large data volume needs?
Contact us for a tailored study.

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Weather intelligence for your business 

Wetaher forecast API for Agriculture

Agriculture

DISCOVER

Whether it is to optimize chemical spraying, which depends on the wind and rain, or to optimize planting and harvesting, or to prevent hail and frost, specific meteorological indicators can help farmers optimize their income.

Worldwide Weather Forecast API for building industry

Building industry

Whether it is to optimize the layout of the site or to anticipate rainy days to avoid bringing backhoe loaders when there is mud, specific weather-dependent indicators can help the building industry to keep costs down and maximize revenues. 

DISCOVER
Wetaher forecast API for logistics

Logistics

DISCOVER

Whether it is to avoid the storage of warm clothes when it rains, to anticipate storing fans when demand is high, or to avoid moving an excavator on a muddy site, specific weather-dependent indicators can help logistics keep costs down and maximize revenue.

Wetaher forecast API for transport

Transport

Whether it is to anticipate traffic jams, delays due to weather condition, to optimize the route of vehicles running on renewable energies, or to anticipate maintenance, specific meteorological indicators can help the transport industry to limit costs and CO2 emissions.

Worldwide Weather Forecast API for insurance

Insurance

Whether it is to avoid calling on experts, or to create new types of insurance with easy to purchase options, specific weather dependent indicators can help the insurance industry profitability. 

Worldwide Weather Forecast API for environment

Environment

Whether it is to anticipate the evolution of fires or floods, to anticipate the evolution of Sargassum in order to be able to collect it and transform it into biogas, or to anticipate the evolution of the pollution of the air, specific weather indicators can help environment-related industries. 

Worldwide Weather Forecast API for defense and security

Security

Whether it be to anticipate the evolution of fires or floods to help firefighters, anticipate the risks of avalanches, anticipate storms and hail on the road, air or sea, or to anticipate the evolution of pollution of the air, specific indicators depending on the weather can help with safety related industries.

Worldwide Weather Forecast API for health

Health

Whether it is to anticipate monsoon diseases, the epidemic following a natural disaster sensitive to humidity and temperature, or to anticipate the best time to send a drone to deliver drugs, specific weather-dependent indicators can help the healthcare industry to be more agile. 

All weather forecasts in one platform

All weather parameters to facilitate critical decision-making 

With 26 forecasts parameters covering all application areas, you will definitely find highly accurate data that meets your business needs.

We provide probabilistic forecasts for each parameter: 10 quantiles for each data point. It helps tailor indicators and customized alerts to better support decision-making and risk management.

With our API delivery, you can define the most adapted configuration to fit your needs. Our forecasts are available worldwide up to 15 days in advance, with a topographic resolution down to 90 m and update frequency of 1 hour.

Worldwide Weather Forecast API for temperature

Temperature

Worldwide Weather Forecast API for snow

Snow

Worldwide Weather Forecast API for precipitation

Precipitation

Worldwide Weather Forecast API for humidity

Humidity

Worldwide Weather Forecast API for stability

Stability

Worldwide Weather Forecast API for wind

Wind

Worldwide Weather Forecast API for clouds

Clouds

Worldwide Weather Forecast API for radiation

Radiation

Worldwide Weather Forecast API for gases and aerosols

Gases & Aerosols 

Worldwide Weather Forecast API for pressure

Pressure & density 

Worldwide Weather Forecast API for evapotranspiration

Evapotranspiration

All the features you need

Web application

All-in-one weather dashboard

Online configuration (portfolio, parameters, warnings, etc.) 

Forecasts time series up to 15 days ahead 

Confidence intervals / indices 

Tailored decision-making indicators 

Live notifications for critical events 

Historical forecast and observation data 

Interactive weather maps and satellite images

Continuous forecast verification scores and statistics 

Continuous forecast verification scores and statistics 

Worldwide Weather Forecast by web application

API

Connect to real-time weather forecast very easily with API.

The Frogcast API provides an easy way to integrate your forecast data with any external system. The API closely follows REST semantics, uses JSON to encode objects, and relies on standard HTTP codes to report the results of operations.

Contextual documentation is available in the application. You will find everything you need to create your first query very simply.

Worldwide Weather Forecast API

White label

Everything you need to expand your business solution

Web app 

Add out-of-the-box elements to your web application dashboards, map views, real-time alerts and performance indicators

Mobile notifications 

What could be more effective for real-time decision support (warnings, alerts, periodic information) than mobile notifications ?
Offer it in your own application

Deep integration

The white label plan gives you access to the admin role of your private workspace.
A complete set of API endpoints are available to provide any use-case including the complete portfolio management software integration

Worldwide Weather Forecast API white label

Cutting-Edge Weather Technology

A best-in-class platform combining Physics-based modeling and Artificial Intelligence

Geospatial Big Data 

Collection, storage, access, processing and visualisation of our data is based on the use of state-of-the-art Big Data technologies.

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Frogcast is powered by heterogeneous and complementary geospatial data from more than 20+ world-class providers such as ECMWF and NOAA, including Numerical Weather Prediction (NWP), Earth Observation, as well as ground-based meteorological measurements.

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Probabilistic forecast

Estimating the likelihood of an event occurring enables better decision making by end users to reduce risk.

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Since uncertainty is an inherent ingredient in forecasting, our system optimally combines ensemble forecasts from different models to generate percentiles as well as custom confidence indices for each weather parameter and location in the world.

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High resolution model

Frogcast offers dynamical downscaling using the Weather Research and Forecast (WRF) mesoscale regional model down to 1 km. Developed by our experts, flexible model configurations are adapted to the specific needs of the user.

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Ideally suited to regions with complex terrain, land/sea contrasts and high aerosol concentrations, the model can also assimilate public and proprietary observational data to better resolve local effects - providing more accurate predictions anywhere.

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Machine Learning

The growing availability of high-quality (big) data allows Machine Learning to be applied to many parts of the Frogcast workflow, from advanced post-processing of NWP outputs to innovative nowcasting techniques.

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The growing availability of high-quality (big) data allows Machine Learning to be applied to many parts of the Frogcast workflow, from advanced post-processing of NWP outputs to innovative nowcasting techniques.

Combination of models according to their level of performance at the regional scale

Statistical downscaling using historical observations for bias adjustment across seasons and weather systems

Live corrections based on in situ data

Automatic generation of alerts using configurable thresholds for extreme and critical events

Deep Learning models with data fusion for very short term predictions

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A variety of weather data sources

For improved forecasting accuracy and service reliability 

NWP outputs

Satellites images

In-situ data

Numerical Weather Prediction

Numerical Weather Prediction

Frogcast aggregates data from over 20 different numerical weather prediction models operated by national meteorological agencies around the world.

We also use the Weather Research and Forecast (WRF) model on demand, especially in regions where high-resolution models are not publicly available and where atmospheric processes are complex to model. All these models are pre-processed in a similar way, taking into account their specificities.

About Us

Origin

Why Frogcast?

Our Team

Frogcast, created by the company Steadysun, embodies our commitment to building the world of tomorrow.

Founded in 2013 and originating from the CEA (Commissariat à l'Énergie Atomique et aux Énergies Alternatives) and INES (Institut National de l'Énergie Solaire), Steadysun develops solutions to support the energy transition through forecasting tools for solar and wind electricity production. This experience has earned us the trust of over 120 clients for more than 14,000 sites spread across 25 countries around the world. 

We believe in weather intelligence

Frogcast, created by the company Steadysun, embodies our commitment to building the world of tomorrow.

Founded in 2013 and originating from the CEA (Commissariat à l'Énergie Atomique et aux Énergies Alternatives) and INES (Institut National de l'Énergie Solaire), Steadysun develops solutions to support the energy transition through forecasting tools for solar and wind electricity production. This experience has earned us the trust of over 120 clients for more than 14,000 sites spread across 25 countries around the world. 

Today, we aim to go even further by expanding our weather forecasting services to all weather-dependent sectors. Indeed, 70% of the global economy is weather-sensitive, impacting the management and profitability of businesses.

Based on this observation, we have developed Frogcast, the intelligent weather data platform. Our goal is to help companies better consider the impact of weather conditions on their activities by facilitating their strategic and operational decision-making.

Designed by our team of experts, composed of doctors and engineers specialized in atmospheric sciences, artificial intelligence, and software development, our API allows you to access a large number of weather variables worldwide with just one click.

Learn more about Steadysun.

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