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 5h 56m 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 - Nov 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:213.98:423.42:440.33:081.36:335:09First Quarter1Tue
2Wed10:004.19:523.43:280.44:081.06:345:08Waxing Gibbous2Wed
3Thu10:344.210:523.54:070.55:020.66:355:07Waxing Gibbous3Thu
4Fri11:014.511:463.64:430.75:510.46:365:06Waxing Gibbous4Fri
5Sat11:254.75:171.06:370.16:375:05Waxing Gibbous5Sat
6Sun12:383.711:50 AM5.05:531.27:220.06:395:04Full Moon6Sun
7Mon1:283.812:215.36:331.58:07-0.16:405:03Full Moon7Mon
8Tue2:193.912:575.57:161.68:52-0.26:415:02Full Moon8Tue
9Wed3:113.91:395.68:041.89:38-0.36:425:01Waning Gibbous9Wed
10Thu4:053.92:265.58:561.810:27-0.36:435:00Waning Gibbous10Thu
11Fri5:003.93:185.39:541.811:18-0.26:445:00Waning Gibbous11Fri
12Sat5:573.94:174.910:581.76:454:59Waning Gibbous12Sat
13Sun6:544.05:264.412:13-0.112:101.66:464:58Third Quarter13Sun
14Mon7:504.16:514.01:100.01:281.36:474:57Third Quarter14Mon
15Tue8:434.38:193.82:070.12:441.06:484:56Third Quarter15Tue
16Wed9:324.59:363.73:010.23:540.66:494:56Waning Crescent16Wed
17Thu10:174.710:433.73:510.44:560.26:504:55Waning Crescent17Thu
18Fri10:584.911:423.84:370.75:52-0.16:514:54Waning Crescent18Fri
19Sat11:345.15:201.06:44-0.36:534:54Waning Crescent19Sat
20Sun12:373.912:065.16:011.37:32-0.46:544:53New Moon20Sun
21Mon1:294.012:355.16:411.68:18-0.36:554:52New Moon21Mon
22Tue2:194.01:025.17:211.99:01-0.36:564:52New Moon22Tue
23Wed3:074.01:305.08:032.09:40-0.26:574:51New Moon23Wed
24Thu3:554.02:034.98:462.010:17-0.16:584:51Waxing Crescent24Thu
25Fri4:414.02:424.79:312.010:51-0.16:594:51Waxing Crescent25Fri
26Sat5:263.93:254.410:191.911:240.07:004:50Waxing Crescent26Sat
27Sun6:113.84:154.111:131.811:570.17:014:50Waxing Crescent27Sun
28Mon6:553.85:143.712:131.77:024:49First Quarter28Mon
29Tue7:383.96:273.312:350.21:211.57:034:49First Quarter29Tue
30Wed8:184.07:573.11:180.32:321.27:044:49First Quarter30Wed
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