Rijkswaterstaat WaterWebservices - Dutch Water Data API
Rijkswaterstaat (Netherlands Ministry of Infrastructure and Water Management) water data portal. Provides water levels, discharge/flow, water and air temperature, waves, salinity and tides at ~10-minute intervals, with bulk historic download and the WaterWebservices REST/OGC APIs.
rijkswaterstaatdata.nl
At a glance
- Region
- Netherlands (Europe)
- Coverage
- Netherlands
- Access
- Free
- Category
- Government
- Last updated
- 2026
What's inside
- water level
- river discharge
- water temperature
- tide
- salinity
Terms explained
What you can do with it
Typical work that data of this type supports.
- 01
Sea-level planning
Plan for sea-level rise and storm surge.
Because it has: tide
- 02
Saline intrusion
Track salt moving into rivers and aquifers.
- 03
Design flows
Estimate 1-in-50 and 1-in-100 year floods for bridges, culverts and spillways.
Because it has: river discharge
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Surge forecasts
Forecast surge and coastal water levels quickly.
- 02
Shoreline change
Detect erosion and accretion from imagery.
- 03
Flow forecasting
Train LSTM-style models on past records to forecast river levels and flow days ahead.
Machine access and documentation
Open API
WaterWebservices JSON REST (OnlineWaarnemingenService) + WMS/WFS; documented at apis.developer.overheid.nl
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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- Arealdata - Danmarks Miljøportal (Hydrometri og grundvand)Europe | Free
- ARPAE Dext3r - Emilia-Romagna Meteo-Hydrological Data ExtractionEurope | Free
- BfG German Federal Waterways Data (PEGELONLINE)Europe | Free
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