About TideCharts USA

TideCharts USA publishes fast, readable tide times and tide charts for 3,066 US tide prediction stations.

Data source

All tide predictions come from the NOAA Center for Operational Oceanographic Products and Services (CO-OPS) via its public data API and metadata API. NOAA data is a work of the US Government and in the public domain. This site is not affiliated with or endorsed by NOAA.

Heights are in feet above Mean Lower Low Water (MLLW). Times are local standard/daylight time. Predictions are astronomical and do not include weather effects such as wind or storm surge. Pages are regenerated daily.