St Clair State Police — MI, United States

Tide times & tide chart

Mostly seasonal — the yearly change in water level here is about 30 times the daily tide.

Now
Tide predictions for St Clair State Police, computed from harmonic constituents. High 0.0 feet on Mon 19 Oct 2026 at 18:50, low 0.0 feet on Tue 20 Oct 2026 at 00:00, above MLLW, the chart datum.
↑7:48am↓6:40pm

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 St Clair State Police (America/Detroit). Heights are in feet above MLLW.
DayTideTimeHeight
Tue 20 Oct 2026Low0.0 ft
Tue 20 Oct 2026High0.0 ft
Wed 21 Oct 2026Low-0.1 ft
Wed 21 Oct 2026High0.0 ft
Wed 21 Oct 2026Low-0.1 ft
Wed 21 Oct 2026High0.0 ft
Thu 22 Oct 2026Low-0.1 ft
Thu 22 Oct 2026High0.0 ft
Thu 22 Oct 2026Low-0.1 ft
Thu 22 Oct 2026High0.0 ft
Fri 23 Oct 2026Low-0.1 ft
Fri 23 Oct 2026High-0.1 ft
Fri 23 Oct 2026Low-0.1 ft
Fri 23 Oct 2026High-0.1 ft
Sat 24 Oct 2026Low-0.1 ft
Sat 24 Oct 2026High-0.1 ft
Sat 24 Oct 2026Low-0.1 ft
Sun 25 Oct 2026High-0.1 ft
Sun 25 Oct 2026Low-0.1 ft
Sun 25 Oct 2026High-0.1 ft
Sun 25 Oct 2026Low-0.1 ft

Station facts

Position
42.8122° N, 82.4856° W
Time zone
America/Detroit
Datum
MLLW datum · computed from harmonic constituents
Source
Harmonic constituents from TICON-4
Region
MI, United States

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