Willamette River at Portland — OR, United States

Tide times & tide chart

Mostly seasonal — the yearly change in water level here is about 3.1 times the daily tide.

-0.8 ft12:41am-2.9 ft8:19am-1.7 ft1:50pm-2.5 ft7:19pmNow
Tide predictions for Willamette River at Portland, computed from harmonic constituents. High -0.8 feet on Mon 19 Oct 2026 at 00:40, low -2.9 feet on Mon 19 Oct 2026 at 08:20, above MLLW, the chart datum.
↑7:32am↓6:17pm

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 Willamette River at Portland (America/Los_Angeles). Heights are in feet above MLLW.
DayTideTimeHeight
Mon 19 Oct 2026High-0.8 ft
Mon 19 Oct 2026Low-2.9 ft
Mon 19 Oct 2026High-1.7 ft
Mon 19 Oct 2026Low-2.5 ft
Tue 20 Oct 2026High-0.8 ft
Tue 20 Oct 2026Low-2.9 ft
Tue 20 Oct 2026High-1.4 ft
Tue 20 Oct 2026Low-2.5 ft
Wed 21 Oct 2026High-0.7 ft
Wed 21 Oct 2026Low-2.9 ft
Wed 21 Oct 2026High-1.0 ft
Wed 21 Oct 2026Low-2.4 ft
Thu 22 Oct 2026High-0.5 ft
Thu 22 Oct 2026Low-2.8 ft
Thu 22 Oct 2026High-0.5 ft
Thu 22 Oct 2026Low-2.3 ft
Fri 23 Oct 2026High-0.2 ft
Fri 23 Oct 2026Low-2.5 ft
Fri 23 Oct 2026High0.1 ft
Fri 23 Oct 2026Low-2.1 ft
Sat 24 Oct 2026High0.1 ft
Sat 24 Oct 2026Low-2.3 ft
Sat 24 Oct 2026High0.7 ft
Sun 25 Oct 2026Low-1.8 ft
Sun 25 Oct 2026High0.4 ft
Sun 25 Oct 2026Low-1.9 ft
Sun 25 Oct 2026High1.2 ft

Station facts

Position
45.5175° N, 122.6692° W
Time zone
America/Los_Angeles
Datum
MLLW datum · computed from harmonic constituents
Source
Harmonic constituents from TICON-4
Region
OR, 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