Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Friday, August 14, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 2h 35m at 10:18 am (0.0 ft)
Next high tide : 4:32 pm (4.6 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waxing Crescent (6% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Sep 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:533.77:214.72:440.61:262.25:376:38Third Quarter1Sat
2Sun9:583.88:334.73:500.42:402.35:386:37Third Quarter2Sun
3Mon10:534.09:404.64:460.33:502.25:396:35Waning Crescent3Mon
4Tue11:414.210:364.75:330.14:492.05:406:34Waning Crescent4Tue
5Wed12:224.26:130.15:411.85:406:32Waning Crescent5Wed
6Thu12:574.36:470.16:281.65:416:31Waning Crescent6Thu
7Fri12:054.61:284.37:160.27:111.35:426:29New Moon7Fri
8Sat12:454.51:524.37:380.47:511.25:436:28New Moon8Sat
9Sun1:254.42:084.47:560.58:291.05:446:26New Moon9Sun
10Mon2:054.32:194.68:140.79:060.95:456:25New Moon10Mon
11Tue2:494.12:364.98:380.99:430.85:466:23Waxing Crescent11Tue
12Wed3:373.93:035.19:101.110:250.75:466:22Waxing Crescent12Wed
13Thu4:343.73:395.39:471.411:160.75:476:20Waxing Crescent13Thu
14Fri5:453.54:225.310:321.75:486:18First Quarter14Fri
15Sat7:083.45:145.212:280.711:25 AM2.05:496:17First Quarter15Sat
16Sun8:283.46:185.11:560.712:322.25:506:15First Quarter16Sun
17Mon9:353.67:374.93:120.51:542.35:516:14First Quarter17Mon
18Tue10:313.89:054.94:150.23:182.05:526:12Waxing Gibbous18Tue
19Wed11:174.010:214.95:070.04:311.75:526:11Waxing Gibbous19Wed
20Thu11:584.311:255.05:52-0.15:341.25:536:09Waxing Gibbous20Thu
21Fri12:364.56:32-0.16:320.95:546:07Full Moon21Fri
22Sat12:234.91:104.77:090.17:270.65:556:06Full Moon22Sat
23Sun1:174.71:424.97:430.48:190.35:566:04Full Moon23Sun
24Mon2:114.52:125.18:170.79:110.25:576:03Full Moon24Mon
25Tue3:074.32:425.28:511.110:030.25:586:01Waning Gibbous25Tue
26Wed4:064.13:135.29:271.410:570.35:596:00Waning Gibbous26Wed
27Thu5:093.93:475.110:081.711:550.45:595:58Waning Gibbous27Thu
28Fri6:163.84:284.910:562.06:005:56Third Quarter28Fri
29Sat7:243.75:204.612:590.411:56 AM2.26:015:55Third Quarter29Sat
30Sun8:293.86:284.32:050.41:082.36:025:53Third Quarter30Sun
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 1:25 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 6% 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 Crescent (6% 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