Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 1h 27m at 8:26 am (-0.2 ft)
Next high tide : 2:35 pm (4.3 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:20 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jul 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:365.25:304.710:59-0.311:171.44:487:34Waxing Crescent1Fri
2Sat4:394.76:174.811:400.04:497:34First Quarter2Sat
3Sun5:494.17:054.812:241.212:220.34:497:34First Quarter3Sun
4Mon7:063.77:544.91:341.01:070.64:507:34First Quarter4Mon
5Tue8:233.58:425.02:450.71:561.04:507:34First Quarter5Tue
6Wed9:363.59:295.13:520.52:491.44:517:34Waxing Gibbous6Wed
7Thu10:423.610:135.24:530.23:421.74:517:33Waxing Gibbous7Thu
8Fri11:413.810:525.25:470.04:352.04:527:33Waxing Gibbous8Fri
9Sat12:334.06:35-0.15:252.24:537:33Waxing Gibbous9Sat
10Sun1:214.17:19-0.16:132.34:537:32Full Moon10Sun
11Mon12:005.22:054.27:59-0.16:592.34:547:32Full Moon11Mon
12Tue12:325.22:454.28:330.07:432.24:557:32Full Moon12Tue
13Wed1:065.13:214.29:030.08:252.14:557:31Full Moon13Wed
14Thu1:425.03:524.29:270.09:062.04:567:31Waning Gibbous14Thu
15Fri2:224.84:204.29:480.19:471.84:577:30Waning Gibbous15Fri
16Sat3:054.64:434.310:090.110:311.64:577:30Waning Gibbous16Sat
17Sun3:524.35:084.510:370.211:211.54:587:29Waning Gibbous17Sun
18Mon4:463.95:384.711:120.44:597:29Third Quarter18Mon
19Tue5:543.66:164.912:201.411:54 AM0.85:007:28Third Quarter19Tue
20Wed7:233.37:025.11:341.212:431.15:007:27Third Quarter20Wed
21Thu8:573.37:555.32:571.01:391.55:017:27Third Quarter21Thu
22Fri10:153.48:535.64:110.72:411.85:027:26Waning Crescent22Fri
23Sat11:203.79:525.85:140.43:482.05:037:25Waning Crescent23Sat
24Sun12:173.96:090.14:552.15:037:25Waning Crescent24Sun
25Mon1:084.26:59-0.16:012.05:047:24New Moon25Mon
26Tue1:554.47:45-0.27:041.95:057:23New Moon26Tue
27Wed12:445.92:404.58:28-0.28:051.75:067:22New Moon27Wed
28Thu1:395.73:224.79:08-0.29:031.55:077:21Waxing Crescent28Thu
29Fri2:355.44:044.89:46-0.110:001.35:087:20Waxing Crescent29Fri
30Sat3:315.04:454.910:220.110:591.15:087:20Waxing Crescent30Sat
31Sun4:314.65:274.910:580.45:097:19Waxing Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415144)

Common Questions About Port Chicago, CA Tides

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What time does the tide turn (slack tide) in Port Chicago, CA today?

Slack tide in Port Chicago, CA is approximately 11:30 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Port Chicago, CA?

Port Chicago, CA is currently in a spring phase. Tonight's moon is 1% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Port Chicago, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Port Chicago, CA?

Tide predictions for Port Chicago, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Port Chicago, CA?

Tide data for Port Chicago, CA is sourced from NOAA Station #9415144. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415144.

What is the moon phase in Port Chicago, CA tonight?

Tonight the moon over Port Chicago, CA is New Moon (1% illuminated). This places Port Chicago, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA