Water Level Observations and Predictions

California’s bays and estuaries are increasingly at risk from coastal flooding due to rising sea levels and changing shoreline conditions. This project provides real-time, site-specific water level data to help communities, agencies, and stakeholders monitor and respond to flood risks as they happen.

Our focus is on sheltered coastal areas, like estuaries, where flooding from storm surges, river runoff, and rising sea levels can have significant impacts on infrastructure, natural habitats, and public safety. Through our live data platform, users can access up-to-the-minute water level information from key sites, supporting immediate decision-making and long-term coastal management efforts.

Explore the data below to see current water levels in some of California’s vulnerable coastal regions.