Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 2h 31m at 6:29 am (0.2 ft)
Next high tide : 12:37 pm (4.0 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:30 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jul 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:525.16:314.311:55-0.211:382.25:498:34Waxing Crescent1Thu
2Fri4:444.77:134.312:29-0.15:508:34Waxing Crescent2Fri
3Sat5:404.27:544.312:372.01:000.15:508:34First Quarter3Sat
4Sun6:463.78:324.31:401.71:310.35:518:34First Quarter4Sun
5Mon8:033.39:094.42:471.42:040.65:518:34First Quarter5Mon
6Tue9:253.19:424.63:561.12:421.05:528:33First Quarter6Tue
7Wed10:423.010:134.85:010.83:241.55:538:33First Quarter7Wed
8Thu11:523.210:425.06:000.54:101.95:538:33Waxing Gibbous8Thu
9Fri12:543.46:520.34:592.35:548:32Waxing Gibbous9Fri
10Sat1:503.77:410.15:512.65:558:32Waxing Gibbous10Sat
11Sun2:403.98:250.06:442.75:558:32Full Moon11Sun
12Mon12:285.63:264.09:06-0.17:382.85:568:31Full Moon12Mon
13Tue1:125.74:084.19:44-0.28:312.65:578:31Full Moon13Tue
14Wed1:595.74:454.110:18-0.39:222.45:578:30Full Moon14Wed
15Thu2:485.65:204.110:51-0.310:142.15:588:30Waning Gibbous15Thu
16Fri3:395.45:534.211:22-0.311:081.85:598:29Waning Gibbous16Fri
17Sat4:335.06:274.311:54-0.35:598:29Waning Gibbous17Sat
18Sun5:324.67:024.512:061.612:280.06:008:28Waning Gibbous18Sun
19Mon6:414.17:404.81:111.41:070.36:018:27Third Quarter19Mon
20Tue8:053.68:245.02:271.11:510.76:028:27Third Quarter20Tue
21Wed9:353.49:115.33:480.92:421.26:038:26Third Quarter21Wed
22Thu10:593.510:025.55:040.63:391.76:038:25Waning Crescent22Thu
23Fri12:113.76:110.34:422.16:048:24Waning Crescent23Fri
24Sat1:153.97:100.05:472.46:058:24Waning Crescent24Sat
25Sun2:104.28:03-0.16:502.56:068:23New Moon25Sun
26Mon12:375.83:014.38:51-0.27:512.56:078:22New Moon26Mon
27Tue1:265.73:474.49:33-0.28:462.46:078:21New Moon27Tue
28Wed2:135.54:294.410:11-0.19:382.26:088:20New Moon28Wed
29Thu2:595.25:074.410:44-0.110:272.06:098:19Waxing Crescent29Thu
30Fri3:444.95:424.311:120.111:161.86:108:18Waxing Crescent30Fri
31Sat4:314.56:134.311:350.26:118:17Waxing Crescent31Sat
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 9:33 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 82% 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 Waxing Gibbous (82% 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