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 17m at 5:18 pm (2.5 ft)
Next high tide : 11:08 pm (4.8 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 - Feb 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:185.44:252.46:39-0.27:115:31Waxing Gibbous1Tue
2Wed12:494.111:18 AM5.55:352.37:27-0.47:105:32Waxing Gibbous2Wed
3Thu1:374.312:135.46:372.28:09-0.47:095:34Full Moon3Thu
4Fri2:204.41:045.37:322.08:47-0.47:085:35Full Moon4Fri
5Sat3:004.41:515.18:241.79:20-0.37:075:36Full Moon5Sat
6Sun3:374.42:384.89:121.59:49-0.17:065:37Waning Gibbous6Sun
7Mon4:104.33:254.410:001.310:130.17:055:38Waning Gibbous7Mon
8Tue4:394.34:164.010:481.110:350.47:045:39Waning Gibbous8Tue
9Wed5:044.35:153.511:411.011:010.77:035:40Waning Gibbous9Wed
10Thu5:284.46:273.212:410.97:025:41Third Quarter10Thu
11Fri5:544.47:503.01:510.87:015:43Third Quarter11Fri
12Sat6:284.59:113.112:161.63:040.77:005:44Third Quarter12Sat
13Sun7:144.510:223.41:112.14:100.56:595:45Third Quarter13Sun
14Mon8:114.611:213.62:202.45:070.26:585:46Waning Crescent14Mon
15Tue9:154.73:332.55:550.06:565:47Waning Crescent15Tue
16Wed12:103.910:15 AM4.84:392.56:37-0.16:555:48Waning Crescent16Wed
17Thu12:524.011:10 AM5.05:362.37:14-0.26:545:49Waning Crescent17Thu
18Fri1:284.111:59 AM5.16:262.07:47-0.36:535:50New Moon18Fri
19Sat2:004.112:465.17:121.78:16-0.36:515:51New Moon19Sat
20Sun2:284.21:335.07:561.48:42-0.26:505:52New Moon20Sun
21Mon2:514.32:204.88:401.09:08-0.16:495:53New Moon21Mon
22Tue3:144.53:114.59:260.89:370.26:485:54Waxing Crescent22Tue
23Wed3:404.74:074.110:160.610:090.56:465:55Waxing Crescent23Wed
24Thu4:114.95:153.711:140.510:480.96:455:56Waxing Crescent24Thu
25Fri4:505.16:403.312:260.66:435:57First Quarter25Fri
26Sat5:365.18:133.31:540.56:425:59First Quarter26Sat
27Sun6:335.19:373.412:341.93:190.46:416:00First Quarter27Sun
28Mon7:454.910:453.71:532.24:300.16:396:01Waxing Gibbous28Mon
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 8:13 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 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