Union — WA, United States

Tide times & tide chart

1.8 ft5:29am11.2 ft1:31pm7.2 ft7:34pm7.6 ft10:23pmNow
Tide predictions for Union, computed from harmonic constituents. High 11.2 feet on Mon 19 Oct 2026 at 13:30, low 1.8 feet on Mon 19 Oct 2026 at 05:30, above MLLW, the chart datum.
↑7:36am↓6:16pm

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 Union (America/Los_Angeles). Heights are in feet above MLLW.
DayTideTimeHeight
Mon 19 Oct 2026Low1.8 ft
Mon 19 Oct 2026High11.2 ft
Mon 19 Oct 2026Low7.2 ft
Mon 19 Oct 2026High7.6 ft
Tue 20 Oct 2026Low2.2 ft
Tue 20 Oct 2026High11.4 ft
Tue 20 Oct 2026Low6.1 ft
Wed 21 Oct 2026High7.7 ft
Wed 21 Oct 2026Low2.5 ft
Wed 21 Oct 2026High11.5 ft
Wed 21 Oct 2026Low4.8 ft
Thu 22 Oct 2026High8.4 ft
Thu 22 Oct 2026Low2.9 ft
Thu 22 Oct 2026High11.6 ft
Thu 22 Oct 2026Low3.4 ft
Fri 23 Oct 2026High9.3 ft
Fri 23 Oct 2026Low3.5 ft
Fri 23 Oct 2026High11.6 ft
Fri 23 Oct 2026Low2.0 ft
Sat 24 Oct 2026High10.3 ft
Sat 24 Oct 2026Low4.1 ft
Sat 24 Oct 2026High11.6 ft
Sat 24 Oct 2026Low0.6 ft
Sun 25 Oct 2026High11.3 ft
Sun 25 Oct 2026Low4.9 ft
Sun 25 Oct 2026High11.6 ft
Sun 25 Oct 2026Low-0.6 ft

Station facts

Position
47.3583° N, 123.0980° W
Time zone
America/Los_Angeles
Datum
MLLW datum · computed from harmonic constituents
Source
Harmonic constituents from US National Oceanic and Atmospheric Administration
Region
WA, 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