| * | 02 April 2026 | The March 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 |
|
|
28/04/2026 |
NB. This information is only updated
during
office
hours 0730 -1600 Mon - Fri.
2026 Series
013 Indian Ocean - SW Sector -
Offshore Capo Delgado - MEZ Established.
014 Indian Ocean - SW Sector - Port of Maputo - Buoy Missing.
038 AFMET ZSJ off the air.
045 South Atlantic Ocean - NE Sector - Angola - Seismic Survey.
067 South Atlantic Ocean - NE Sector - Rig List.
073 South Atlantic Ocean - NE Sector - Namibia - Offshore Orange River Mouth
- Mining/Sampling/Exploration Operations.
107 South Atlantic Ocean - NE Sector - Namibia - Drilling Operations.
117 South Atlantic Ocean - NE Sector - Luanda - Vessel Adrift.
122 Message in Force.
|
|
28/04/2026 |
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.
020 East Coast - Offshore Durban - Diving Operations.
021 South Coast - Algoa Bay - Buoys Deployed.
051 Southwest Coast - Offshore Cape Town - Buoy Deployed.
052 AFMET ZSJ off the air.
074 East Coast - Durban - VHF and HF Sites out of Service.
130 Namibia - Offshore Orange River Mouth - Mining/Sampling/Exploration
Operations.
184 South Coast - Offshore Cape St Francis - Oceanographic Research
Buoy.
196 South Coast - Knysna - Light Unlit.
207 South Coast - Offshore Cape St Blaize - FA Platform Unlit.
243 Message in Force.
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.
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© 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