Pacific Northwest
Blaine
Semiahmoo Bay · Washington · NOAA station 9449679 · Tide predictions
48.9917, -122.7650
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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
Se'lhaem Bellingham Bay buoy · 20 mi SE · Station 46118
Wind & wave reports →
Nearby tide stations
- CHERRY POINT · 8.9 mi S
- Sandy Point, Lummi Bay · 14.2 mi S
- POINT ROBERTS, PUGET SOUND · 14.5 mi W
- Patos Island Wharf · 17.0 mi SW
- Echo Bay, Sucia Islands · 17.3 mi S
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 10.8 ft — Thu Dec 16 · 8:25 AM
Lowest predicted low tide: -3.5 ft — Sun Jul 4 · 12:08 PM
Biggest single-day swing: 14.1 ft on Sun Jul 4
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jul 4 | 12:08 PM | -3.5 ft |
| Sun Jun 6 | 1:09 PM | -3.4 ft |
| Mon Jul 5 | 12:56 PM | -3.3 ft |
| Sat Jun 5 | 12:23 PM | -3.3 ft |
| Sat Jul 3 | 11:21 AM | -3.3 ft |
| Mon Jun 7 | 1:56 PM | -3.1 ft |
| Sun Aug 1 | 11:04 AM | -2.8 ft |
| Fri Jun 4 | 11:39 AM | -2.8 ft |
| Mon Aug 2 | 11:53 AM | -2.7 ft |
| Fri Jul 2 | 10:33 AM | -2.6 ft |
174 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
Blaine, Semiahmoo Bay 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.