Know the Tide

Know the tide.

West Coast

Bolinas Lagoon

California · NOAA station 9414958 · Tide predictions

· Pacific Time · Feet / MLLW (mean lower low water)

37.9080, -122.6785

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48-hour outlook

Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.

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 · 9 mi S · Station 46237
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Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 5.1 ft — Tue Dec 14 · 10:57 AM

Lowest predicted low tide: -0.9 ft — Sun Jun 6 · 8:49 AM

Biggest single-day swing: 5.8 ft on Sun Jun 6

Best daytime minus tides of 2027
DateLow tideHeight
Sun Jun 68:49 AM-0.9 ft
Sat Jun 58:06 AM-0.9 ft
Mon Jun 79:31 AM-0.8 ft
Sun Jul 47:44 AM-0.8 ft
Mon Jul 58:23 AM-0.7 ft
Fri Jun 47:21 AM-0.7 ft
Sun May 99:53 AM-0.7 ft
Sat May 89:05 AM-0.7 ft
Tue Jun 810:13 AM-0.7 ft
Sat Jul 37:02 AM-0.7 ft

135 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

Bolinas Lagoon 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.

Diurnal range4.3 ft
Mean range2.9 ft
RegionWest Coast
NOAA chart18649
Station since1979