Station Information

Station ID: 1842
Latitude: -21.136806
Longitude: -175.180694
Coastline code: 744
Station code: 2
Country: TONGA
Time span of data: 1993 – 2023
Completeness (%): 99
Link to ellipsoid: Available
Date of last update: 05 Feb 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: TONG
Nearby Real Time Stations from VLIZ: nkfa, nkfa2
Fast Delivery Data from UHSLC station 38: hourly and daily
Research Quality Data from UHSLC station 38: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1998-01-13

National Tidal Facility SEAFRAME station

Documentation added 2010-08-26

Supplying authority have confirmed that tide gauge zero is chart datum (1990). Tide gauge benchmark TON 1 is 2.0686 m above chart datum. RLR is defined as 8.0 m below TON 1

Data Authority

National Tidal Centre
Bureau of Meteorology
PO Box 421
Kent Town 5071
South Australia

Documentation added 2010-08-12

Formerly known as the National Tidal Facility