| * | 08 October 2021 | The September 2021 Edition of Monthly Notices to Mariners and updated Cumulative List Of South African Notices To Mariners are now available. |
| * | 10 May 2021 | SEABED 2030 project information available under Hydro News. |
The South African National Hydrographer's Message in response to COVID-19
“The outbreaks of the Coronavirus (COVID-19) pandemic has had the world scrambling to “flatten the curve” and administer vaccines to slow down the spread of this disease. South Africa has not escaped the reach of this pandemic.
During any mandated “lockdown period”, the South African Navy Hydrographic Office (SANHO) will remain open for business as an essential service to the Republic. In an effort to protect our staff, we may enter into a rotating watch system ensuring that all functions remain capacitated at all times.
We will be doing everything possible to minimise the impact of service delivery to you our valued clients and stakeholders.
On behalf of the SANHO team, I wish you, your team and families all the very best in these trying times. Please stay safe and keep well.”
For more information, news and regulations regarding the South African Government's fight against COVID-19, please follow the link to www.sacoronavirus.co.za
Navigation Messages Currently in Force.
|
Summary |
Complete Set of Messages |
Last updated on |
|
|
26/10/2021 |
NB. This information is only updated during office hours 0730 -1600 Mon - Fri.
2021 Series
117
South Atlantic Ocean - SE Sector - Gough Island - Shoal Reported.
118
Indian Ocean - SW Sector - Mozambique Channel - Drilling Structure.
161
Indian Ocean - SW Sector - Mozambique - Lighthouse unlit.
162
South Atlantic Ocean - NE Sector - Angola - Mooring Buoys and FPSOs.
163
Indian Ocean - SW Sector -
Madagascar
- Mahajanga Harbour Buoys.
223
Indian Ocean - SW Sector - Mozambique - Lighthouse
Unlit.
224
Indian Ocean - SW Sector - Mozambique - Lighthouse
Unlit.
311 South Atlantic and Indian Sector - Rig List.
322 Messages in Force.
323
South
Atlantic Ocean - NE Sector - Namibia - Mining Vessels.
|
|
26/10/2021 |
NB: This information is only updated during office hours 0730 -1600 Mon - Fri.
2021
Series
287
South West Coast - False Bay - Desalination Structure.
314 East Coast - Offshore Durban - Outfall Pipeline.
386 South Coast - Breede River Estuary - Construction.
445 South Coast - Berg River Mouth - RACONs Non-operational.
493 East Coast - Port of Durban - Fairway Buoy Removed.
514 South West Coast - False Bay - Gunnery Firing Exercise.
521
Namibia - Offshore Oranjemund - Mining Vessels.
524 Messages in Force.
529 South West Coast - False Bay - Gunnery Exercise.
531 South West Coast - False Bay - Gunnery Exercise.
532 East Coast - Offshore Great Fish Pt - Towing Operation.
533 Messages
in Force.
534 South West Coast - Struisbaai - Directional LT Unlit.
535 South West Coast - Table Bay to Agulhas Weather Alert.
537 South Coast - Offshore Cape Seal - Vessel NUC.
538
Namibia - Offshore Oranjemund - Mining Vessels.
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 South African National 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 Act of 2019 (Act No. 35 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