Pacific Northwest
Union
Washington · NOAA station 9445478 · Tide predictions
47.3583, -123.0980
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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
Angeles Point, WA (248) buoy · 61 mi N · Station 46267
Wind & wave reports →
Nearby tide stations
- Walkers Landing, Pickering Passage · 9.8 mi SE
- Shelton, Oakland Bay · 9.9 mi S
- Lynch Cove Dock · 10.1 mi NE
- Ayock Point · 10.6 mi N
- Allyn, Case Inlet · 13.0 mi E
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 14.0 ft — Sat Jan 23 · 5:59 AM
Lowest predicted low tide: -4.2 ft — Sun Jul 4 · 11:30 AM
Biggest single-day swing: 17.6 ft on Sun Jul 4
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jul 4 | 11:30 AM | -4.2 ft |
| Mon Jul 5 | 12:16 PM | -4.0 ft |
| Sun Jun 6 | 12:30 PM | -3.9 ft |
| Sat Jul 3 | 10:43 AM | -3.9 ft |
| Sat Jun 5 | 11:45 AM | -3.8 ft |
| Mon Jun 7 | 1:17 PM | -3.5 ft |
| Sun Aug 1 | 10:26 AM | -3.4 ft |
| Mon Aug 2 | 11:14 AM | -3.4 ft |
| Fri Jun 4 | 11:02 AM | -3.3 ft |
| Tue Jul 6 | 1:02 PM | -3.1 ft |
164 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
Union is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
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.