Pacific Northwest
Cosmopolis
Chehalis River · Washington · NOAA station 9441158 · Tide predictions
46.9667, -123.7780
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Grays Harbor, WA (036) buoy · 23 mi W · Station 46211
Wind & wave reports →
Nearby tide stations
- ABERDEEN · 3.5 mi W
- Markham · 11.2 mi W
- Bay City, South Bay · 15.2 mi SW
- Westport, Point Chehalis · 16.0 mi W
- Point Brown · 16.5 mi W
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 13.6 ft — Fri Jan 22 · 12:42 PM
Lowest predicted low tide: -3.2 ft — Mon Jul 5 · 8:59 AM
Biggest single-day swing: 15.7 ft on Fri Jan 22
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jul 5 | 8:59 AM | -3.2 ft |
| Sun Jul 4 | 8:13 AM | -3.2 ft |
| Sun Jun 6 | 9:14 AM | -3.0 ft |
| Sat Jun 5 | 8:28 AM | -2.9 ft |
| Tue Jul 6 | 9:43 AM | -2.9 ft |
| Mon Jun 7 | 10:01 AM | -2.8 ft |
| Sat Jul 3 | 7:27 AM | -2.8 ft |
| Mon Aug 2 | 7:55 AM | -2.8 ft |
| Tue Aug 3 | 8:38 AM | -2.7 ft |
| Fri Jun 4 | 7:43 AM | -2.5 ft |
176 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
About this station
NOAA builds the predictions for Cosmopolis, Chehalis River from the Toke Point station: high tides about 1.23× the height, 26 min later; low tides about 1.12× the height, 15 min later.
Puget Sound and the Columbia estuary amplify mixed tides far inland — ranges past 10 ft in the South Sound — with river flow stacked on top.