Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 3h 03m at 1:40 am (1.1 ft)
Next high tide : 7:39 am (3.4 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - May 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:205.45:253.410:220.09:322.25:116:58Waxing Crescent1Sun
2Mon3:025.36:253.411:060.010:262.35:106:59Waxing Crescent2Mon
3Tue3:515.17:243.512:010.05:097:00Waxing Crescent3Tue
4Wed4:484.88:193.61:05-0.15:087:01First Quarter4Wed
5Thu5:574.49:083.712:472.22:08-0.15:077:02First Quarter5Thu
6Fri7:204.19:503.92:101.93:03-0.15:067:03First Quarter6Fri
7Sat8:483.910:284.23:251.43:51-0.15:047:04Waxing Gibbous7Sat
8Sun10:063.911:014.54:310.84:340.15:037:05Waxing Gibbous8Sun
9Mon11:133.911:334.95:300.35:130.45:027:06Waxing Gibbous9Mon
10Tue12:163.96:26-0.15:520.85:017:07Waxing Gibbous10Tue
11Wed12:035.21:153.97:20-0.46:311.25:007:07Full Moon11Wed
12Thu12:345.42:153.98:13-0.57:131.65:007:08Full Moon12Thu
13Fri1:075.63:153.99:05-0.68:002.04:597:09Full Moon13Fri
14Sat1:435.64:154.09:57-0.58:502.24:587:10Waning Gibbous14Sat
15Sun2:225.55:154.010:48-0.49:462.44:577:11Waning Gibbous15Sun
16Mon3:065.16:144.011:41-0.310:492.44:567:12Waning Gibbous16Mon
17Tue3:564.77:114.012:33-0.24:557:13Waning Gibbous17Tue
18Wed4:574.28:044.012:002.31:26-0.14:547:14Third Quarter18Wed
19Thu6:163.78:534.11:162.12:150.04:547:14Third Quarter19Thu
20Fri7:493.49:364.22:311.73:010.14:537:15Third Quarter20Fri
21Sat9:093.210:144.33:381.33:410.34:527:16Third Quarter21Sat
22Sun10:163.110:464.54:380.84:160.54:527:17Waning Crescent22Sun
23Mon11:153.211:124.65:300.44:470.94:517:18Waning Crescent23Mon
24Tue12:103.26:180.25:151.24:507:19Waning Crescent24Tue
25Wed1:033.37:030.05:451.64:507:19Waning Crescent25Wed
26Thu1:553.57:46-0.16:192.04:497:20New Moon26Thu
27Fri12:095.32:473.68:26-0.16:582.34:497:21New Moon27Fri
28Sat12:395.53:383.79:04-0.27:432.54:487:22New Moon28Sat
29Sun1:165.64:283.79:42-0.28:332.54:487:22Waxing Crescent29Sun
30Mon1:595.65:163.710:20-0.29:262.54:477:23Waxing Crescent30Mon
31Tue2:475.46:043.711:00-0.310:252.44:477:24Waxing Crescent31Tue
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 4:39 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 transitional phase. Tonight's moon is 64% 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 shifting between spring and neap.

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 Third Quarter (64% illuminated). This places Port Chicago, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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