Know the Tide

Know the tide.

West Coast

PORT CHICAGO

SUISUN BAY · California · NOAA station 9415144 · Tide predictions

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

38.0560, -122.0395

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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 · 37 mi SW · Station 46237
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Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 6.1 ft — Sun Jul 4 · 1:29 AM

Lowest predicted low tide: -0.6 ft — Fri Jan 22 · 8:46 PM

Biggest single-day swing: 6.6 ft on Sun Jul 4

Best daytime minus tides of 2027
DateLow tideHeight
Mon Jun 711:36 AM-0.6 ft
Sun Jun 610:51 AM-0.5 ft
Mon Jul 510:31 AM-0.5 ft
Tue Jun 812:22 PM-0.5 ft
Tue Jul 611:11 AM-0.5 ft
Sat Jun 510:04 AM-0.5 ft
Sun Jul 49:49 AM-0.5 ft
Wed May 198:46 AM-0.4 ft
Thu Feb 186:55 PM-0.4 ft
Wed Jun 91:06 PM-0.4 ft

155 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

PORT CHICAGO, SUISUN 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.

Diurnal range4.9 ft
Mean range3.7 ft
RegionWest Coast
NOAA chart18656
Station since1976