Important Messages

2020/01/23

We’ll be doing maintenance on the website from January 23, 2020, 9:00 A.M. – January 27, 2020, 9:00 A.M. (ET). During this period, there may be service interruptions to the tides.gc.ca and the charts.gc.ca websites.

2019/12/19

The CHS waterlevel observations web service has been experiencing difficulties and had to be taken down for repairs. It is expected to return to operation in a couple of days. We apologize for any inconvenience.

2019/12/11

We’ll be doing maintenance on the website on December 14, 2019, from 12:00 P.M. – 1:00 P.M. (ET). During this period, there may be service interruptions to the tides.gc.ca, chs-shc.gc.ca and the Chart Registry websites as well as the Water Level Forecasts, Predictions, and Observations Web Services.

2019/12/05

Users of the WDS tidal prediction data service: A problem developed with water level prediction data on the WDS service following loading of new 2020 data, which commenced on Nov 10, 2019. If you have acquired data from the WDS service on or prior to Thursday Dec 5th 2019, please be advised you must re-download all tidal predictions starting Dec 14th 2019 and onward through 2020.

2019/10/30

We’ll be doing maintenance on the website from Wednesday November 13, 2019, 8:00 P.M. – 11:00 P.M. (ET).

During this period, there may be service interruptions to the tides.gc.ca and the charts.gc.ca websites.