Station Information

Station ID: 1192
Latitude: -33.027222
Longitude: 27.931667
Coastline code: 430
Station code: 90
Time span of data:
Completeness (%): 0
Date of last update: 10 Feb 2021

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.

Tide Gauge Data

Download metric sea level data. Use only with extreme caution.
NOTE: If some of the data are red in the plots above, the 'flag for attention' is set. Please see the documentation below.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: ELDN, ELDA
Fast Delivery Data from UHSLC station 187: hourly and daily
Research Quality Data from UHSLC station 187: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

East London 430/090 RLR(1967) is 11.2m below BM'TG Pit'

Documentation added 1996-08-28

For discussions of MSL changes and extreme sea levels around Namibia
and South Africa, see: G.B.Brundrit, S.Afr.J.Mar.Sci.,16,9-17,1995
and S.Searson and G.B.Brundrit, S.Afr.J.of Science, 91,579-588,1995.

Documentation added 2009-09-24

Heights of chart datum relative to land levelling
datum in South Africa and Namibia: East London
Datum: up to 31st Dec 1978 = -0.762
Datum: 1st Jan 1979 - 31st Dec 1997 = -0.900
Datum: 1st Jan 1998 - 31st Dec 2002 = -1.006
Datum: 1st Jan 2003 onwards = -0.716
Datum is now LAT so unlikely to change.

Documentation added 2010-05-11

There appears to be a spike in the dataset for November 2002. This is possibly
real as it appears in several of the S. African stations.

Documentation added 2019-11-07

The South African Navy Hydrographic Office (SANHO) are the copyright owners of the East London sea level data and must be contacted to request permission to use the data.

Documentation added 2021-02-10

"The South African Hydrographic Office have asked us to remove this record in line with the Hydrographic Act of 2019 (Act No. 35 of 2019) and the South African Spatial Data Infrastructure Act, 2003 (Act No. 54 of 2003). The data can be obtained directly from SANHO (email: hydrosan@iafrica.com)

Data Authority

Hydrographic Office
Maritime Headquarters
Private Bag X1
Tokai 7966