Saint-Laurent I.O. — QC, Canada

Tide times & tide chart

13.9 ft12:27am3.5 ft7:21am11.3 ft1:13pm4.5 ft7:24pmNow
Tide predictions for Saint-Laurent I.O., computed from harmonic constituents. High 13.9 feet on Mon 19 Oct 2026 at 00:30, low 3.5 feet on Mon 19 Oct 2026 at 07:20, above LLWLT, the chart datum.
↑7:07am↓5:49pm

Predictions are not observations — conditions vary with weather and river flow. Not for navigation.

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Tide times for the next 7 days

Mon 19 Oct 2026 through Sun 25 Oct 2026. All times are local to Saint-Laurent I.O. (America/Toronto). Heights are in feet above LLWLT.
DayTideTimeHeight
Mon 19 Oct 2026High13.9 ft
Mon 19 Oct 2026Low3.5 ft
Mon 19 Oct 2026High11.3 ft
Mon 19 Oct 2026Low4.5 ft
Tue 20 Oct 2026High13.5 ft
Tue 20 Oct 2026Low3.5 ft
Tue 20 Oct 2026High11.7 ft
Tue 20 Oct 2026Low4.3 ft
Wed 21 Oct 2026High13.5 ft
Wed 21 Oct 2026Low3.2 ft
Wed 21 Oct 2026High12.6 ft
Wed 21 Oct 2026Low3.6 ft
Thu 22 Oct 2026High14.0 ft
Thu 22 Oct 2026Low2.7 ft
Thu 22 Oct 2026High13.8 ft
Thu 22 Oct 2026Low2.8 ft
Fri 23 Oct 2026High14.7 ft
Fri 23 Oct 2026Low2.2 ft
Fri 23 Oct 2026High15.2 ft
Fri 23 Oct 2026Low2.1 ft
Sat 24 Oct 2026High15.5 ft
Sat 24 Oct 2026Low2.0 ft
Sat 24 Oct 2026High16.5 ft
Sun 25 Oct 2026Low1.5 ft
Sun 25 Oct 2026High16.1 ft
Sun 25 Oct 2026Low2.0 ft
Sun 25 Oct 2026High17.5 ft

Station facts

Position
46.8582° N, 71.0033° W
Time zone
America/Toronto
Datum
LLWLT datum · computed from harmonic constituents
Source
Harmonic constituents from TICON-4
Region
QC, Canada

Heights are measured above chart datum. A negative height means there is that much less water than the charted depth shows.

Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data

How we check predictions — dated samples and their limits.

Nearby

All tide stations