Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 12:03 am (1.7 ft)
Next high tide : in 2h 13m at 6:35 pm (4.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Sep 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:584.25:355.212:070.511:30 AM1.26:387:37Waxing Crescent1Tue
2Wed7:083.96:205.11:100.512:161.56:397:35First Quarter2Wed
3Thu8:213.87:164.92:190.51:121.86:407:34First Quarter3Thu
4Fri9:323.88:264.73:290.52:202.16:407:32First Quarter4Fri
5Sat10:373.99:414.64:340.43:352.16:417:31First Quarter5Sat
6Sun11:344.110:474.65:310.24:452.06:427:29Waxing Gibbous6Sun
7Mon12:224.26:190.15:461.86:437:28Waxing Gibbous7Mon
8Tue1:044.37:010.16:381.66:447:26Waxing Gibbous8Tue
9Wed12:304.51:414.47:370.27:251.36:457:25Waxing Gibbous9Wed
10Thu1:124.52:134.48:070.38:091.26:467:23Full Moon10Thu
11Fri1:524.42:384.48:330.58:491.06:467:22Full Moon11Fri
12Sat2:314.32:564.58:530.79:270.96:477:20Full Moon12Sat
13Sun3:114.13:094.69:130.910:020.86:487:19Full Moon13Sun
14Mon3:534.03:274.99:371.110:360.86:497:17Waning Gibbous14Mon
15Tue4:393.83:555.110:081.311:130.76:507:15Waning Gibbous15Tue
16Wed5:343.74:315.210:461.511:570.76:517:14Waning Gibbous16Wed
17Thu6:403.55:145.211:301.76:527:12Waning Gibbous17Thu
18Fri7:573.46:065.112:580.712:241.96:527:11Third Quarter18Fri
19Sat9:113.47:075.02:210.71:292.16:537:09Third Quarter19Sat
20Sun10:163.58:224.83:410.52:472.16:547:08Third Quarter20Sun
21Mon11:113.79:454.84:450.34:061.86:557:06Waning Crescent21Mon
22Tue11:574.011:014.85:390.25:171.56:567:04Waning Crescent22Tue
23Wed12:384.26:250.16:201.16:577:03Waning Crescent23Wed
24Thu12:074.91:154.57:060.17:180.76:587:01Waning Crescent24Thu
25Fri1:064.91:504.87:440.38:130.46:597:00New Moon25Fri
26Sat2:024.82:235.08:210.59:070.26:596:58New Moon26Sat
27Sun2:574.62:555.28:570.810:010.17:006:57New Moon27Sun
28Mon3:544.53:285.39:351.110:540.17:016:55Waxing Crescent28Mon
29Tue4:524.34:035.210:151.411:490.17:026:53Waxing Crescent29Tue
30Wed5:544.14:425.111:001.77:036:52Waxing Crescent30Wed
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 9:19 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 80% 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 (80% 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