Astoria (Columbia River), OR tide times

The hero block shows the next high tide at the Tongue Point gauge in local Pacific time. The 7-day table covers all four daily extremes. River discharge from the Columbia adds a non-tidal component to actual water levels, especially during spring runoff in May and June; harmonic predictions describe the astronomical tide only.

Mean range at Astoria is about 2.4 metres, climbing past 2.9 metres on spring tides and dropping near 1.6 on neaps. The river-mouth amplifies the open-Pacific signal modestly; further inland up the Columbia toward Vancouver and Portland the range damps significantly as the river takes over from the tide.

NOAA CO-OPS station 9439040 at Tongue Point, just east of Astoria. NOAA's harmonic predictions resolve both the astronomical tide and the long-period river-cycle component. Accuracy is navigation-grade under normal weather. The Columbia Bar's pilots maintain their own real-time current and surge information for ship traffic, which is the authoritative source for crossing decisions.

The lowest lows — minus tides below MLLW — cluster around new and full moons, especially late autumn through early spring. The 7-day table flags each day's lowest predicted tide. Trestle Bay and the broader Lewis and Clark NWR flats open up best at the bottom of these cycles, exposing mudflats that hold dunlin, plovers, and the occasional sandhill crane in passage.

No. The Columbia Bar is one of the most heavily piloted ship channels in North America for a reason. For any small-craft transit of the bar use the Coast Guard's bar restrictions, NOAA's authoritative chart products, and the latest pilot-station information. The breaking water on a strong ebb against incoming Pacific swell is real and lethal; this site is a planning tool, not a crossing decision.