Station Begin NAVD MHHW MTL MHW MSL MLW MLLW STND feet inch metre cm mm Adjust By

https://tidesandcurrents.noaa.gov/api/datagetter?begin_date=20130101&end_date=20130101&station=8454000&product=water_level&datum=NAVD&units=english&time_zone=gmt&application=web_services&format=json

Stations
NOAA api
NOAA charts
PSMSL
sealevel.info
CU
json2table
Manual on Sea Level Measurement, 2006, IOC

This tool allows one to plot monthly mean water level data from any available tide gauge from NOAA. Data availability may vary from one station to the next. (2017 B. Shrestha)

analysis results here