* 09 April 2021 The March 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* 09 March 2021 The 1:600 000 National Series is permanently withdrawn from SAN Folio 1 and 2 with effect from 01 March 2021. These charts are no longer available from Chart Agents and superseded by the 1:1 000 000 INT Chart Series..
* 01 December 2020 The Maritime Safety Information eLearning Training and Awareness Platform is now available for comment by SAIHC Member States.
* 03 June 2020

The Hydrographic Act No. 35 of 2019 was gazetted.  Click here to read the act.


The South African National Hydrographer's Message in response to COVID-19

 

“The recent outbreak of the Coronavirus (COVID-19) pandemic has the world scrambling to “flatten the curve” and slow down the spread of this disease.  South Africa has not escaped the reach of this pandemic.

 

During the 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 will enter into a rotating watch system ensuring that all functions remain capacitated at all times.  We have prioritised our services to the following:

 

 

We are 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

16/04/2021

NB. This information is only updated during office hours 0730 -1600 Mon - Fri.

2020 Series

226 Indian Ocean - SW Sector - Port of Quelimane - Buoys out of position.
267 South Atlantic Ocean - SE Sector - Gough Island - Shoal Reported.
269 Indian Ocean - SW Sector - Port of Maputo - Buoys and Lights.
307 Indian Ocean - SW Sector - Mozambique Channel - Drilling Structure.

2021 Series

007   South Atlantic Ocean - NE Sector - Survey Operations.
023   Indian Ocean - SW Sector - Mozambique - Lighthouse unlit.
029   South Atlantic Ocean - NE Sector - Angola - Mooring Buoys and FPSOs.
0
41   Indian Ocean - SW Sector - Madagascar - Mahajanga Harbour Buoys.
0
74   South Atlantic Ocean - NE Sector - Namibia - Mining Vessels. 

077  
Indian Ocean - SW Sector - Port of Beira - Buoy out of Position.
094   South Atlantic Ocean - NE Sector - Rig List.
097   South Atlantic Ocean - NE Sector - Namibia - Drilling. 

099   AFMET - Weather Broadcast.

112   South Atlantic Ocean - NE Sector - Namibia - Mining Operation. 
115   Messages in Force.

16/04/2021

NB: This information is only updated during office hours 0730 -1600 Mon - Fri.

2021 Series

040 East Coast - East London - Nahoon Light Unlit.
127 South Coast - Offshore Cape Recife - Anchor Left.
150 Namibia - Offshore Oranjemund - Mining Vessels.
195 Namibia - Offshore Lüderitz - Drilling Operations.
197 AFMET - Weather Broadcast
198 South West Coast - Simon's Town - Gunnery Exercise.
201 East Coast - Offshore East London - Wreckage Adrift.
204 South Coast - Knysna - Shoal Reported.
209 South Coast - Knysna - Buoy Out of Position.
210 Messages in Force.
212 West Coast - Offshore Alexander Bay - Left Anchors.
213 South Coast - Knysna - Buoy Out of Position.
214 West Coast - Port of Lambert Bay - Light Unlit.
215 West Coast - Offshore Lüderitz - Mining Operations.
216 South West Coast -Offshore Saldanha Bay - Military Exercises.
217 West Coast - Offshore Alexander Bay - Mining Operations
.

 


Reporting of Navigational Hazards

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

Port

Up to
 31 Dec 1978

1 Jan 1997
to
31 Dec 1997
1 Jan 1998
to
31 Dec 2002

 1 Jan 2003
onwards

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