Know the Tide

Know the tide.

West Coast

Alameda

California · NOAA station 9414750 · Tide predictions

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

37.7720, -122.3003

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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 · 18 mi W · Station 46237
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Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 7.9 ft — Sun Aug 1 · 11:40 PM

Lowest predicted low tide: -1.7 ft — Sun Jun 6 · 8:03 AM

Biggest single-day swing: 9.5 ft on Thu Jan 21

Best daytime minus tides of 2027
DateLow tideHeight
Sun Jun 68:03 AM-1.7 ft
Mon Jul 57:48 AM-1.7 ft
Sun Jul 47:02 AM-1.7 ft
Thu Jan 215:22 PM-1.7 ft
Fri Jan 226:06 PM-1.7 ft
Sat Jun 57:15 AM-1.7 ft
Mon Jun 78:52 AM-1.6 ft
Tue Dec 146:37 PM-1.5 ft
Tue Jul 68:33 AM-1.5 ft
Wed Jan 204:35 PM-1.5 ft

184 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

Alameda 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 range6.6 ft
Mean range4.8 ft
RegionWest Coast
NOAA chart18649
Station since1939