Composite Island — AK, United States

Tide times & tide chart

2.9 ft2:46am11.7 ft9:50am6.7 ft3:15pm12.7 ft8:46pmNow
Tide predictions for Composite Island, NOAA reference highs and lows, adjusted by published offsets. High 12.7 feet on Mon 19 Oct 2026 at 20:50, low 2.9 feet on Mon 19 Oct 2026 at 02:50, above MLLW, the chart datum.
↑7:53am↓5:47pm

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 Composite Island (America/Juneau). Heights are in feet above MLLW.
DayTideTimeHeight
Mon 19 Oct 2026Low2.9 ft
Mon 19 Oct 2026High11.7 ft
Mon 19 Oct 2026Low6.7 ft
Mon 19 Oct 2026High12.7 ft
Tue 20 Oct 2026Low2.7 ft
Tue 20 Oct 2026High12.6 ft
Tue 20 Oct 2026Low5.7 ft
Tue 20 Oct 2026High13.0 ft
Wed 21 Oct 2026Low2.4 ft
Wed 21 Oct 2026High13.7 ft
Wed 21 Oct 2026Low4.2 ft
Wed 21 Oct 2026High13.7 ft
Thu 22 Oct 2026Low2.0 ft
Thu 22 Oct 2026High15.0 ft
Thu 22 Oct 2026Low2.7 ft
Fri 23 Oct 2026High14.5 ft
Fri 23 Oct 2026Low1.8 ft
Fri 23 Oct 2026High16.3 ft
Fri 23 Oct 2026Low1.1 ft
Sat 24 Oct 2026High15.3 ft
Sat 24 Oct 2026Low1.8 ft
Sat 24 Oct 2026High17.7 ft
Sat 24 Oct 2026Low-0.3 ft
Sun 25 Oct 2026High16.0 ft
Sun 25 Oct 2026Low2.0 ft
Sun 25 Oct 2026High19.0 ft
Sun 25 Oct 2026Low-1.5 ft

Station facts

Position
58.8883° N, 136.5730° W
Time zone
America/Juneau
Datum
MLLW datum · NOAA reference highs and lows, adjusted by published offsets
Source
NOAA tide offsets from 9452634
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