| * | 11 Sep 2026 | The August 2026 Edition of Monthly Notices to Mariners and Cumulative List Of South African Notices To Mariners 2026 are now available. |
Navigation Messages Currently in Force.
|
Summary |
Complete Set of Messages |
Last updated on |
|
|
18/09/2026 |
NB. This information is only updated
during
office
hours 0730 -1600 Mon - Fri.
2026 Series
014 Indian Ocean - SW Sector - Port of Maputo - Buoy Missing.
221 South Atlantic Ocean - NE
Sector - Offshore Oranjemund - Buoy Adrift.
246 South Atlantic Ocean - NE Sector - Offshore Orange River Mouth - Seismic Survey.
258 South Atlantic Ocean - NE Sector - Rig List.
259 South Atlantic Ocean - NE Sector - Namibia - Offshore Orange River Mouth - Mining/Sampling/Exploration Operations.
260 Message in Force.
261 Indian Ocean - SW Sector - Offshore Ile De La Reunion - Oceanographic Survey.
|
|
18/09/2026 |
NB: This information is only updated during office hours 0730 -1600 Mon - Fri.
2026 Series
018 West Coast - Offshore
Lamberts Bay - Mooring Deployed.
019 South Coast - Offshore Port of Port Elizabeth - Buoy Deployed.
384 South Coast -
Struisbaai Harbour - Light not Operational.
410 East Coast - Bird Island -Lighthouse Unlit.
413 South Coast - Cape St Francis to Great Fish Point - Pelagic Survey Operations.
461 Southwest Coast - Dassen Island - Light Unlit.
462 Namibia - Offshore Orange River Mouth - Mining/Sampling/Exploration Operations.
465 Message in Force.
466 West Coast to East Coast - Alexander Bay to Richards Bay - Weather.
Reporting of Navigational Hazards
-
Changes observed at Sea by Mariners navigating beyond Harbours Reporting Form.
-
Changes observed by Mariners concerning Ports and Harbours Reporting Form.
Tide Tables for South Africa and Namibia
The South African Tide Tables may not be reproduced without written permission, as it is copyrighted to the South African National Hydrographer, SA Navy.
This page allows you to select the current month's tidal information for any of the tidal ports listed. Please select a port from the drop-down list provided on the map below. Please ensure your pop-up blocker is deactivated to allow the file to open.
|
|
© This information is copyrighted to The Hydrographer, SA Navy. All information produced by the SA Navy Hydrographic Office is a product and is subject to the Copyright Act, 1978 (Act No. 98 of 1978, as amended up to Copyright Amendment Act 2002), the Hydrographic Bill of 2019, the South African Spatial Data Infrastructure Act, 2003 (Act No. 54 of 2003) the Policy on Pricing of Spatial Information Products and Services (2015) and the Promotion of Access to Information Act, 2000.
Tide Theory (pdf 847.36 KB)
Heights of Chart Datum Relative to Land Levelling Datum in South Africa and Namibia
|
Port |
Up to |
1 Jan 1997 to 31 Dec 1997 |
1 Jan 1998 to 31 Dec 2002 |
1 Jan 2003 |
| Walvis Bay | -0.913 | -0.900 | -0.966 | -0.966 |
| Lüderitz | -0.865* | -0.900 | -0.935 | -1.055 |
| Port Nolloth | -0.718* | -0.900 | -1.075 | -0.925 |
| Saldanha | -0.582 | -0.900 | -0.975 | -0.865 |
| Cape Town | -0.829 | -0.900 | -0.975 | -0.825 |
| Simon's Town | -0.651 | -0.900 | -1.003 | -0.843 |
| Hermanus | -0.619 | -0.900 | -0.978 | -0.788 |
| Mossel Bay | -0.761 | -0.900 | -1.163 | -0.933 |
| Knysna | -0.625 | -0.900 | -1.048 | -0.788 |
| Port Elizabeth | -0.838 | -0.900 | -1.026 | -0.836 |
| East London | -0.762 | -0.900 | -1.006 | -0.716 |
| Durban | -0.838 | -0.900 | -1.113 | -0.913 |
| Richards Bay | -0.900 | -0.900 | -1.205 | -1.015 |
* In use until 1 January 1994