California
Half Moon Bay tides
Tide charts & times for Half Moon Bay, California · read from NOAA station Pillar Point Harbor, Half Moon Bay (#9414131)
Half Moon Bay · California · NOAA station 9414131 · Tide predictions
37.5025, -122.4822
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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
San Francisco Bar, CA (142) buoy · 21 mi NW · Station 46237
Wind & wave reports →
Nearby tide stations
- Seaplane Harbor · 10.7 mi NE
- Coyote Point Marina · 11.1 mi NE
- Point San Bruno · 11.7 mi NE
- South San Francisco · 12.4 mi NE
- Oyster Point Marina · 12.6 mi NE
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 7.1 ft — Thu Jan 21 · 8:43 AM
Lowest predicted low tide: -1.9 ft — Sun Jun 6 · 6:49 AM
Biggest single-day swing: 8.7 ft on Thu Jan 21
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jun 7 | 7:38 AM | -1.7 ft |
| Thu Jan 21 | 4:07 PM | -1.6 ft |
| Fri Jan 22 | 4:51 PM | -1.6 ft |
| Tue Dec 14 | 5:25 PM | -1.5 ft |
| Sat May 8 | 7:00 AM | -1.5 ft |
| Mon Dec 13 | 4:40 PM | -1.5 ft |
| Wed Jan 20 | 3:21 PM | -1.5 ft |
| Wed Dec 15 | 6:11 PM | -1.4 ft |
| Tue Jul 6 | 7:17 AM | -1.4 ft |
| Sun May 9 | 7:50 AM | -1.4 ft |
183 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
Pillar Point Harbor, Half Moon 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.
Mixed semidiurnal tides — two unequal highs and two unequal lows a day — with ranges growing as you head north. Harbor entrances feel the swell as much as the tide.