Sea Level

This page collects sea level records: the satellite global average and long tide-gauge records from individual stations. All charts are drawn automatically from the published data and update on their own.

Global Mean Sea Level – Satellite Altimetry

Global Mean Sea Level Anomaly – 1993 to Present (NOAA STAR)

NOAA STAR’s published global file currently ends in February 2025.
Satellite global mean sea level
Satellite global mean sea level anomaly, seasonal cycle removed, mm. Source: NOAA STAR Laboratory for Satellite Altimetry

Tide Gauge Records – Annual Mean Sea Level

Tide gauges measure sea level relative to the land they stand on, so local land rising or sinking shows up in each record.

New York (The Battery) – Annual Mean Sea Level

New York (The Battery) annual mean sea level
Annual mean sea level at New York (The Battery) tide gauge, metres, with a straight-line trend (orange). Source: PSMSL

San Francisco – Annual Mean Sea Level

San Francisco annual mean sea level
Annual mean sea level at the San Francisco tide gauge, metres, with a straight-line trend (orange). Source: PSMSL

Stockholm – Annual Mean Sea Level

Stockholm annual mean sea level
Annual mean sea level at the Stockholm tide gauge, metres, with a straight-line trend (orange). The land here is still rising after the last ice age, so local sea level falls. Source: PSMSL

Source Guide:

NOAA STAR – Laboratory for Satellite Altimetry
https://www.star.nesdis.noaa.gov/socd/lsa/SeaLevelRise/

Permanent Service for Mean Sea Level (PSMSL)
https://psmsl.org/

NOAA Tides & Currents – Sea Level Trends and Extremes
https://tidesandcurrents.noaa.gov/trends-and-extremes/

Dave Burton – Sea Level Info
https://sealevel.info/

See also the WUWT Ocean Page.