Tides and locks

Tide tables

Old Québec Station

Date

Hour

HAE000102030405060708091011121314151617181920212223
2024-05-272.92.21.61.10.71.12.83.94.85.35.14.33.62.92.21.61.10.70.82.33.33.94.13.8
2024-05-283.22.72.01.51.00.71.43.04.04.85.24.94.13.52.82.11.51.00.61.02.43.33.94.1
2024-05-293.83.22.72.01.51.00.81.63.04.04.75.04.84.03.42.72.01.40.90.61.02.43.33.9
2024-05-304.13.93.32.72.11.51.10.81.42.83.74.44.84.63.93.32.62.01.40.90.61.02.43.3
2024-05-313.94.24.03.42.92.21.61.20.81.12.53.44.14.54.53.93.32.62.01.40.90.61.02.4
2024-06-013.34.04.34.23.63.02.41.71.20.80.82.03.13.84.44.43.93.22.62.01.40.90.61.1
2024-06-022.63.54.24.64.53.73.12.41.81.20.80.61.52.93.74.34.43.93.22.61.91.30.90.5

Tide tables of other stations

Date

Hour

HAE000102030405060708091011121314151617181920212223
2024-05-272.92.21.61.10.71.12.83.94.85.35.14.33.62.92.21.61.10.70.82.33.33.94.13.8
2024-05-283.22.72.01.51.00.71.43.04.04.85.24.94.13.52.82.11.51.00.61.02.43.33.94.1
2024-05-293.83.22.72.01.51.00.81.63.04.04.75.04.84.03.42.72.01.40.90.61.02.43.33.9
2024-05-304.13.93.32.72.11.51.10.81.42.83.74.44.84.63.93.32.62.01.40.90.61.02.43.3
2024-05-313.94.24.03.42.92.21.61.20.81.12.53.44.14.54.53.93.32.62.01.40.90.61.02.4
2024-06-013.34.04.34.23.63.02.41.71.20.80.82.03.13.84.44.43.93.22.62.01.40.90.61.1
2024-06-022.63.54.24.64.53.73.12.41.81.20.80.61.52.93.74.34.43.93.22.61.91.30.90.5

Access the marina by the lock

From the river, you must pass through a lock to get to the marina. Most of the time, lockages are done on demand everyday from 7 am to 12:30 am (there may be a short delay depending on other ongoing operations). 

Please contact the lock keeper directly on VHF channel 71 and remain on the call for the duration of your passage through the lock in order to hear all of the instructions. 

Free passage schedule

During free passages, all of the lock doors are open so there is no delay to pass.

  • Ask the lock keeper for permission to pass and identify yourself as well as the name of your boat
  • Only go through when the traffic light is green
  • The free passage schedule is available every week on our Facebook page (no need to have an account to follow the link)
  • At each free passage period, a green rectangular flag is hoisted to the mast of the Marina services station. The scheduled hours are approximate, since the variation of the tide is not always as predicted

Lockages on Saturdays, Sundays and public holidays (between St-Jean-Baptiste and Labour Day)

  • Reserve 24 hours in advance by calling 418-648-2233 for an outing between 10 am and 2 pm if there is no free passage planned
  • Arrive at the lock gates 10 minutes before the scheduled time and listen for instructions on VHF 71

We also remind you to always:

  • Prepare fenders on both sides in order to be ready to dock either port or starboard side, and to be double-moored if necessary
  • Move to the back to leave maximum space for others
  • Attach the rear mooring line first, taking up all the slack, then attach the front
  • Turn off the engines once securely moored
  • Wait for the light to turn green before unhooking the boat

Plan your trip

Plan your trip

Useful distances to the nearest nautical mile

From / ToQuébecTrois-RivièresLes Escoumins
Montréal14068260
Sorel9828219
Trois-Rivières680188
Québec068121
Pointe-au-pic7013751

When to leave?

Québec to Trois-Rivières

SpeedSuggested departure time
13 knots and over30 minutes before high tide in Québec
12 knots1 hour before high tide in Québec
10 to 11 knots4 hours and a half before low tide in Québec, 1 hour and a half before high tide in Québec
9 knots2 hours before high tide in Québec
8 knots3 hours before high tide in Québec
7 knots30 minutes after high tide in Québec

Trois-Rivières to Québec

SpeedSuggested departure time
20 knots and over3 hours before low tide in Québec
25 knots4 hours before low tide in Québec
12 to 14 knots4 hours and a half before low tide in Québec
10 to 11 knots5 hours before low tide in Québec
8 to 9 knots6 hours before low tide in Québec
6 to 7 knots8 hours before low tide in Québec

Between Québec and Cap-à-l'aigle

ItinerarySuggested departure time
Québec to Isle-aux-Coudres2 hours before high tide in Québec
Isle-aux-Coudres to Québec6 hours before high tide in Québec
Québec to Cap-à-l'Aigle2 hours before low tide in Québec
Cap-à-l'Aigle to Québec9 hours before high tide in Québec

Please note: plan navigation to arrive at the end of the current at the destination. Therefore, at Cap-à-l’Aigle, the current drops again 2 hours after low tide. From Québec to Cap-à-l’Aigle, by taking the north channel of Ile d’Orléans or the St-Roch ferry, you can save up to an hour. For a boat going faster than 10 knots, leave at high tide in Québec.