Thomas Bay — AK, United States

Tide times & tide chart

3.9 ft2:03am10.8 ft9:11am7.4 ft2:36pm11.4 ft8:20pmNow
Tide predictions for Thomas Bay, computed from harmonic constituents. High 11.4 feet on Mon 19 Oct 2026 at 20:20, low 3.9 feet on Mon 19 Oct 2026 at 02:00, above MLLW, the chart datum.
↑7:33am↓5:37pm

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 Thomas Bay (America/Sitka). Heights are in feet above MLLW.
DayTideTimeHeight
Mon 19 Oct 2026Low3.9 ft
Mon 19 Oct 2026High10.8 ft
Mon 19 Oct 2026Low7.4 ft
Mon 19 Oct 2026High11.4 ft
Tue 20 Oct 2026Low3.6 ft
Tue 20 Oct 2026High11.7 ft
Tue 20 Oct 2026Low6.2 ft
Tue 20 Oct 2026High11.9 ft
Wed 21 Oct 2026Low3.0 ft
Wed 21 Oct 2026High12.9 ft
Wed 21 Oct 2026Low4.5 ft
Wed 21 Oct 2026High12.8 ft
Thu 22 Oct 2026Low2.3 ft
Thu 22 Oct 2026High14.1 ft
Thu 22 Oct 2026Low2.7 ft
Thu 22 Oct 2026High13.9 ft
Fri 23 Oct 2026Low1.6 ft
Fri 23 Oct 2026High15.4 ft
Fri 23 Oct 2026Low0.8 ft
Sat 24 Oct 2026High15.0 ft
Sat 24 Oct 2026Low1.2 ft
Sat 24 Oct 2026High16.7 ft
Sat 24 Oct 2026Low-0.8 ft
Sun 25 Oct 2026High15.8 ft
Sun 25 Oct 2026Low1.0 ft
Sun 25 Oct 2026High17.7 ft
Sun 25 Oct 2026Low-2.2 ft

Station facts

Position
56.9967° N, 132.7850° W
Time zone
America/Sitka
Datum
MLLW datum · computed from harmonic constituents
Source
Harmonic constituents from US National Oceanic and Atmospheric Administration
Region
AK, 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)

How we check predictions — dated samples and their limits.

Nearby

All tide stations