
Whyhydroweb.next ?
Discover data collection

Discover a comprehensive selection of high-quality products tailored to support every phase of your hydrological Studies. Our platform aims to provide centralised access to a vast array of hydrological data originally scattered across multiple platforms. Primarily designed to distribute spatial hydrology data, it also offers valuable collections of model and field data to enhance your research.
Find quickly what you need

Use an intuitive filtering system to quickly find the products best suited to your application. You can easily refine your search by product type, geographical location, time period, and other key criteria. This smart and user-friendly interface helps you access the most relevant hydrological data and tools in just a few clicks, making your research faster, more efficient, and perfectly tailored to your project’s needs.
Experiment online

Explore and interact with data directly online before downloading. Visualize them on dynamic maps, generate plots and graphs, and compare different datasets to better understand their relevance. This interactive environment allows you to assess data quality and consistency, helping you decide whether they truly meet your study’s objectives before committing to a download.
Access centralized documentation

Access detailed insights about each product, including its technical specifications, data structure, and available formats or packaging. Learn how to use the products effectively through clear documentation, usage examples, and best practices. This comprehensive information helps you better understand the data’s content and applicability, ensuring you can integrate it smoothly into your hydrological workflows.
Download products freely

Easily download the products you’ve selected through tailored download options. For those who wish to explore our products hands-on, sample downloads are readily available. The platform offers an online download manager alongside script-based solutions to cater to all user preferences, including the ability to download individual feature time series from graphs.
Work by script

Use scripts to explore data collections and products efficiently through the STAC API with tools such as EODAG or PySTAC, or choose to download them directly using our dedicated API. This flexible approach allows you to automate searches, filter datasets by area, period, or variable, and easily integrate the results into your own workflows. Whether you are building large-scale processing pipelines or running targeted analyses, these APIs provide full control and reproducibility for your hydrological data operations.
Latest news
Vulnerability Notice
on 2026/10/11Following the discovery of a security vulnerability in the Python library py‑hydroweb (path traversal issue), version 1.3.3 has just been released (cf. https://pypi.org/project/py-hydroweb). The hydroweb.next team recommends updating it as soon as possible. Thanks to Jonathan Peri for alerting us.
Maintenance Notice
on 2026/10/07Due to maintenance, the hydroweb.next website will be temporarily unavailable Wednesday October 07 08:00 AM UTC for approximately 2 hours to deploy updates. All pages, login, and transaction services will be offline. We apologize for any inconvenience and appreciate your patience while we make these improvements.
Maintenance Notice
on 2026/09/28Due to maintenance, the hydroweb.next website will be temporarily unavailable Wednesday September 30 08:00 AM UTC for approximately 2 hours to deploy updates. All pages, login, and transaction services will be offline. We apologize for any inconvenience and appreciate your patience while we make these improvements.
“Theia Sentinel 2 Water Quality Priors” Available Again
on 2026/09/28Dear users,
We are pleased to announce that the Theia Sentinel 2 Water Quality Priors collection is back online and ready for download on our portal: Key highlights:
- This update brings version 2.1.9 of the GRS2 processing chain, which resolves the bug that affected the previous release.
- The dataset covers the Theia production mask for the period January 2026 to the present.
Visit the portal to explore and download the refreshed collection, and let us know if you have any questions or feedback.



