| * | 23 November 2023 | The October 2023 Edition of Monthly Notices to Mariners, and Cumulative List Of South African Notices To Mariners 2023 are now available. |
Navigation Messages Currently in Force.
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Summary |
Complete Set of Messages |
Last updated on |
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08/12/2023 |
NB. This information is only updated during office hours 0730 -1600 Mon - Fri.
2023 Series
075 South Atlantic Ocean - NE Sector - Port of Walvis Bay -Buoys.
084 Atlantic Ocean - SE Sector - Light Unreliable.
107 South Atlantic Ocean - NE Sector - Port of Walvis Bay -Jetty Construction.
118 Indian Ocean - SW Sector - Madagascar - Mahajanga and Harbour.
120 Indian Ocean - SW Sector - Madagascar - Anchoring and Trawling Prohibited.
121 South Atlantic Ocean - NE Sector - Angola - Mooring Buoys and FPSO.
129 South Atlantic Ocean - NE Sector - Namibia and RSA West Coast - Drilling Operations.
158 South Atlantic Ocean - NE Sector -Port of Lüderitz - Bottom Seabed Deployed.
232 South Atlantic Ocean - NE Sector - Offshore Angola - Drilling Operation.
293 South Atlantic Ocean - NE Sector - Namibia - Survey Operations.
310 South Atlantic Ocean - NE Sector - Namibia - Data well Wave Buoy Adrift.
329 Indian Ocean - SW Sector - Capsized Vessel.
343 South Atlantic Ocean - NE Sector - Angola - Cable Operations.
346 Indian Ocean - SW Sector and Atlantic Ocean - SE Sector - Space Debris.
347 South Atlantic Ocean - NE Sector - Namibia - Seismic Survey.
353 South Atlantic and Indian Ocean - Rig List.
355 South Atlantic Ocean - NE Sector - Namibia and RSA West Coast - Mining Vessels.
356 Message in Force.
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08/12/2023 |
NB: This information is only updated during office hours 0730 -1600 Mon - Fri.
2023
Series
013 East Coast - Port St Johns - Off the Air.
104 Namibia - Port of Walvis Bay - Buoy.
151 Namibia - Port of Walvis Bay - Jetty Construction.
166 East Coast - Port Alfred - Light Unreliable.
167 South Coast - Offshore Cape Infanta - Buoy.
183 Namibia - Offshore Orange River -Drilling Operations.
223 Namibia - Port of Lüderitz - Bottom Seabed Deployed.
377 West Coast - Saldanha Bay - Off the Air.
388 East Coast - Offshore East London - Sank Vessel.
400 West Coast - Saldanha Bay - Sank Vessel.
426 Namibia - Offshore Orange River -Survey Operations.
441 South West coast - False Bay - Whittle Rock Buoy.
475 East Coast - Offshore Cape Lucia -Light.
478 West Coast - Saldanha Bay - Buoys.
515 South Coast - Arniston Harbour - Unlit Light.
516 East Coast - Kosi Bay - Off the Air.
518 South West coast - Cape Hangklip - Main Light.
520 West Coast - Cape Columbine - Fishing Gear.
521 Namibia and RSA West Coast- Offshore Orange River Mouth - Mining Vessels.
522 Message in Force.
Reporting of Navigational Hazards
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Changes observed at Sea by Mariners navigating
Reporting of Navigational Hazards
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Changes observed at Sea by Mariners navigating beyond Harbours Reporting Form.
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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 2018, 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
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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