Station Information

Station ID: 284
Latitude: -29.874203
Longitude: 31.050761
Coastline code: 430
Station code: 91
Time span of RLR data: 1971 – 2016
RLR completeness (%): 70
Time span of metric data: 1926 – 2016
Metric completeness (%): 36
Frequency Code: 24
Date of last update: 23 Feb 2017

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR 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: DRBA, DRBN
Fast Delivery Data from UHSLC station 181: hourly and daily
Research Quality Data from UHSLC station 181: hourly and daily

Station Documentation

Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 28-AUG-96 :
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.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Durban 430/091 RLR(1972) is 10.6m below TGBM
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 2000Jun12 :
Data for November 1992 - July 1993 deleted as clearly anomalous.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 28-Feb-2008 :
2004/5 gauge was either non-operational or producing rubbish.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Sep-2009 :
Heights of chart datum relative to land levelling datum in South Africa and Namibia: Durban Datum: up to 31st Dec 1978 = -0.838 Datum: 1st Jan 1979 - 31st Dec 1997 = -0.900 Datum: 1st Jan 1998 - 31st Dec 2002 = -1.113 Datum: 1st Jan 2003 onwards = -0.913 Datum is now LAT so unlikely to change. For details of these datum references see the correspondence file.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-May-2010 :
There appears to be a spike in the dataset for December 2002. This is possibly real as it appears in several of the S. African stations.

Data Authority

Hydrographic Office
Maritime Headquarters
Private Bag X1
Tokai 7966