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 4h 04m at 10:26 pm (1.2 ft)
Next high tide (tomorrow) : 3:59 am (4.9 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 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:174.26:12-0.15:271.95:376:38Waxing Gibbous1Fri
2Sat12:594.46:56-0.26:271.65:386:37Full Moon2Sat
3Sun12:165.21:374.57:34-0.17:221.35:396:35Full Moon3Sun
4Mon1:075.02:124.68:090.08:141.05:406:33Full Moon4Mon
5Tue1:574.82:434.78:400.39:040.95:416:32Full Moon5Tue
6Wed2:474.53:114.89:080.69:520.75:426:30Waning Gibbous6Wed
7Thu3:404.23:354.89:350.910:420.75:426:29Waning Gibbous7Thu
8Fri4:383.94:004.910:051.311:360.75:436:27Waning Gibbous8Fri
9Sat5:433.64:304.910:401.65:446:26Waning Gibbous9Sat
10Sun6:563.55:084.812:370.811:25 AM2.05:456:24Third Quarter10Sun
11Mon8:093.55:574.71:460.812:222.35:466:23Third Quarter11Mon
12Tue9:173.67:014.52:550.61:342.55:476:21Third Quarter12Tue
13Wed10:153.88:194.43:560.52:502.45:486:20Third Quarter13Wed
14Thu11:043.99:314.54:470.33:572.25:486:18Waning Crescent14Thu
15Fri11:454.010:304.55:290.24:541.95:496:16Waning Crescent15Fri
16Sat12:214.16:050.15:431.65:506:15Waning Crescent16Sat
17Sun12:504.26:350.16:291.35:516:13Waning Crescent17Sun
18Mon12:074.61:144.37:000.27:121.05:526:12New Moon18Mon
19Tue12:524.51:324.47:230.47:550.75:536:10New Moon19Tue
20Wed1:384.41:494.77:470.68:370.55:546:09New Moon20Wed
21Thu2:274.32:115.08:160.89:220.45:546:07Waxing Crescent21Thu
22Fri3:204.12:425.38:501.110:120.45:556:05Waxing Crescent22Fri
23Sat4:213.93:205.59:291.411:100.45:566:04Waxing Crescent23Sat
24Sun5:313.64:055.510:161.85:576:02Waxing Crescent24Sun
25Mon6:503.54:585.312:220.411:12 AM2.15:586:01First Quarter25Mon
26Tue8:083.66:065.01:420.412:242.25:595:59First Quarter26Tue
27Wed9:163.77:334.72:570.31:522.26:005:58First Quarter27Wed
28Thu10:133.99:074.63:590.13:181.96:015:56Waxing Gibbous28Thu
29Fri11:024.210:214.64:52-0.14:301.56:015:55Waxing Gibbous29Fri
30Sat11:444.411:224.65:37-0.15:311.16:025:53Waxing Gibbous30Sat
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 1:12 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 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