Station Information

Station ID: 377
Latitude: 34.008333
Longitude: -118.5
Coastline code: 823
Station code: 49
Time span of data: 1933 – 2023
Completeness (%): 90
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: WRHS, SPK1, UCLP
Research Quality Data from UHSLC station 578: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Santa Monica 823/049 RLR(1965) is 13.7m below BM(PBM)

Documentation added 2011-10-12

Using NOAA information the RLR diagram has been revised. Previous Primary benchmark BM (PBM) no longer appears in the NOAA listings.Secondary benchmark 3 1940 value confirmed as 8.534m above gauge datumin 1990 is still referred to with a value of 8.536m in 1991 and 8.524m in 2003. Primary benchmark is now TIDAL BM 12 1974 15.065m in 1991 and 15.060m in 2003.
For Information: Data values during the 1980's can appear high by comparison. This could be due to the El Nino Southern Oscillation (ENSO) as it is mirrored 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