Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 5h 08m at 10:41 am (0.0 ft)
Next high tide : 5:04 pm (4.3 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Nov 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:284.112:185.16:121.07:29-0.36:345:09New Moon1Thu
2Fri1:224.112:485.26:511.38:17-0.36:355:08New Moon2Fri
3Sat2:154.11:175.27:301.69:04-0.36:365:07New Moon3Sat
4Sun3:074.11:475.18:111.89:49-0.26:375:06Waxing Crescent4Sun
5Mon3:594.02:205.08:541.910:33-0.16:385:05Waxing Crescent5Mon
6Tue4:514.02:584.89:412.011:160.06:395:04Waxing Crescent6Tue
7Wed5:443.93:424.510:332.011:590.16:405:03Waxing Crescent7Wed
8Thu6:363.84:344.111:311.96:415:02First Quarter8Thu
9Fri7:273.85:373.712:440.112:361.86:425:01First Quarter9Fri
10Sat8:153.86:593.41:300.21:471.66:445:00First Quarter10Sat
11Sun8:593.98:273.22:160.32:561.26:454:59First Quarter11Sun
12Mon9:384.19:413.22:590.43:580.96:464:58Waxing Gibbous12Mon
13Tue10:114.310:443.33:390.64:530.56:474:57Waxing Gibbous13Tue
14Wed10:394.511:403.44:170.95:430.36:484:57Waxing Gibbous14Wed
15Thu11:034.84:541.16:300.16:494:56Waxing Gibbous15Thu
16Fri12:333.611:29 AM5.15:321.47:15-0.16:504:55Full Moon16Fri
17Sat1:243.712:015.46:131.77:59-0.26:514:54Full Moon17Sat
18Sun2:153.812:395.66:581.88:43-0.36:524:54Full Moon18Sun
19Mon3:053.91:225.67:481.99:27-0.36:534:53Full Moon19Mon
20Tue3:563.92:095.68:411.910:13-0.36:544:53Waning Gibbous20Tue
21Wed4:473.93:015.39:381.910:59-0.36:554:52Waning Gibbous21Wed
22Thu5:403.93:594.910:411.711:49-0.26:564:52Waning Gibbous22Thu
23Fri6:324.05:064.511:511.66:574:51Third Quarter23Fri
24Sat7:254.16:264.012:41-0.11:071.36:584:51Third Quarter24Sat
25Sun8:174.37:553.71:340.12:241.06:594:50Third Quarter25Sun
26Mon9:064.59:163.62:280.33:350.57:004:50Waning Crescent26Mon
27Tue9:514.810:263.63:190.54:400.17:014:50Waning Crescent27Tue
28Wed10:335.011:293.74:080.85:38-0.27:024:49Waning Crescent28Wed
29Thu11:115.14:541.26:31-0.47:034:49Waning Crescent29Thu
30Fri12:263.811:46 AM5.25:391.57:21-0.47:044:49New Moon30Fri
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 1:52 pm — 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 90% 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 Waning Gibbous (90% 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