|*||05 February 2021||The Annual Summary of South African Notices To Mariners 2021 Edition is now available.|
|*||05 February 2021||The January 2021 Edition of Monthly Notices to Mariners is now available.|
|*||05 January 2021||New charts SAN 88 (INT 7580) JESSER POINT TO BOA PAZ and SAN 95 (INT 7052) DURBAN TO INHAMBANE are now available from official Chart Agents.|
|*||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:
Coastal Navigation and NAVAREA VII Warnings;
Notices to Mariners;
Paper chart, ENC supply and production activities; and
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.
Complete Set of Messages
Last updated on
NB. This information is only updated during office hours 0730 -1600 Mon - Fri.
005 Indian Ocean - SW Sector - Indian Ocean Islands - Survey Operations.
007 South Atlantic Ocean - NE Sector - Survey Operations.
020 South Atlantic Ocean - NE Sector - Rig List.
023 Indian Ocean - SW Sector - Mozambique - Lighthouse unlit.
029 South Atlantic Ocean - NE Sector - Angola - Mooring Buoys and FPSOs.
038 South Atlantic Ocean - NE Sector - Namibia - Mining Vessels.
041 Indian Ocean - SW Sector - Madagascar - Missing Buoy.
045 Indian Ocean - SW Sector - Juan de Nova Approaches - Survey Operations.
051 South Atlantic Ocean - NE Sector - Offshore Lüderitz - Drilling Operations.
052 South Atlantic Ocean - NE Sector - Offshore Walvis Bay - Towing Operations.
053 Messages in Force.
054 Indian Ocean – SW Sector – St Paul And Amsterdam Islands – Rocket Carrier Elements Falling.
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.
306 Indian Ocean - SW Sector - Offshore La reunion - Survey Operations.
307 Indian Ocean - SW Sector - Mozambique Channel - Drilling Structure.
NB: This information is only updated during office hours 0730 -1600 Mon - Fri.
013 West Coast - Laaiplek - Racon Out of Order.
040 East Coast - East London - Nahoon Light Unlit.
079 Namibia - Offshore Oranjemund - Mining Vessels.
100 Messages in Force.
107 West Coast - Offshore Hondeklipbaai - Survey Operations.
108 West to South Coast - Weather Alert.
110 Namibia - Offshore Lüderitz - Drilling Operations.
112 East Coast - Offshore Cape St Lucia - Towing Operation.
113 Namibia - Offshore Walvis Bay - Towing Operations.
115 South West to South Coasts - Weather Alert.
583 South Coast - Offshore Port Elizabeth -
681 South Coast - Offshore Port Elizabeth - Lost Anchor.
690 West Coast - Laaiplek - Aids to Navigation Deployed.
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