|*||10 May 2021||SEABED 2030 project information available under Hydro News.|
|*||29 April 2021||The April 2021 Edition of Monthly Notices to Mariners is now available.|
09 March 2021
|The 1:600 000 National Series is permanently withdrawn from SAN Folio 1 and 2 with effect from 01 March 2021. These charts are no longer available from Chart Agents and superseded by the 1:1 000 000 INT Chart Series.|
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.
Complete Set of Messages
Last updated on
NB. This information is only updated during office hours 0730 -1600 Mon - Fri.
023 Indian Ocean - SW Sector
- Mozambique - Lighthouse unlit.
029 South Atlantic Ocean - NE Sector - Angola - Mooring Buoys and FPSOs.
Indian Ocean - SW Sector - Madagascar
- Mahajanga Harbour Buoys.
077 Indian Ocean - SW Sector
- Port of Beira - Buoy out of Position.
South Atlantic Ocean - NE Sector - Rig List.
099 AFMET - Weather Broadcast.
112 South Atlantic Ocean - NE
Sector - Namibia - Mining Operation.
117 South Atlantic
Ocean - SE Sector - Gough Island - Shoal Reported.
Indian Ocean - SW Sector - Mozambique Channel - Drilling Structure.
Indian Ocean - SW Sector - Mayotte
South Atlantic Ocean -
NE Sector - Namibia - Drilling
150 Messages in Force
South Atlantic Ocean - NE Sector - Namibia - Mining Vessels.
NB: This information is only updated during office hours 0730 -1600 Mon - Fri.
040 East Coast - East London -
Nahoon Light Unlit.
127 South Coast - Offshore Cape Recife - Anchor Left.
197 AFMET - Weather Broadcast
West Coast - Offshore Lüderitz - Mining Operations.
229 West Coast - Offshore Alexander Bay - Mining Operations.
245 South West Coast - False Bay -
Desalination Pipeline Afloat.
257 West Coast - Offshore Lüderitz - Drilling Operations
264 West Coast - Offshore Lamberts Bay - Anchor left
Namibia - Offshore Oranjemund - Mining Vessels.
269 Messages in Force
270 South West Coast - False Bay - Gunnery Ex.
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 and following 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 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
1 Jan 1997
31 Dec 1997
1 Jan 1998
31 Dec 2002
1 Jan 2003
* In use until 1 January 1994