Station Information

Station ID: 10
Latitude: 37.806667
Longitude: -122.465
Coastline code: 823
Station code: 31
Time span of data: 1854 – 2023
Completeness (%): 100
Date of last update: 10 Jan 2024

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: SBRB, UCSF, PBL1, TIBB, SBRN
Nearby Real Time Stations from VLIZ: fpnt, fpnt2
Fast Delivery Data from UHSLC station 551: hourly and daily
Research Quality Data from UHSLC station 551: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

San Francisco 823/031 RLR(1964) is 10.1m below BM180

Documentation added 2011-07-26

The PSMSL record for San Francisco is made of three sections of data from 1854-1877 at Fort Point, 1878-1897 at Sausilito and for 1898 onwards at the Presidio Park. Datum differences at each site are reflected in the RLR factors which convert 'Metric' data to RLR. For a detailed discussion of the San Francisco record, see Smith, R.A. 1980. Golden Gate tidal measurements
1854-1978. Journal of the waterways, Port Coastal and Ocean Division, Proceedings of the American Society of Civil Engineers, 106, 407-410. See also NOAA Technical Report NOS CO-OPS 035, Historical Golden Gate tidal series, 2002.

Documentation added 2012-09-18

For information: Data values during the early 1980's appear to be particularly high. This phenomenon could be due to the El Nino Southern Oscillation (ENSO)as it is mirrored all along the Californian coast.

Data Authority

N.O.A.A. / N.O.S.
N/oes33, Ssmc4, Room 6531
1305 East-West Highway
Silver Spring,
MD 20910