Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide (tomorrow) : in 1h 15m at 11:19 pm (1.1 ft)
Next high tide : 4:53 am (4.4 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Sep 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:593.83:524.79:510.910:541.15:376:39Waning Gibbous1Tue
2Wed4:563.54:194.910:221.211:431.05:386:37Waning Gibbous2Wed
3Thu6:123.34:555.011:011.65:386:36Third Quarter3Thu
4Fri7:413.25:405.012:531.011:50 AM2.05:396:34Third Quarter4Fri
5Sat9:043.36:365.02:220.912:512.45:406:33Third Quarter5Sat
6Sun10:123.57:435.03:390.72:042.55:416:31Third Quarter6Sun
7Mon11:073.78:575.14:400.43:222.55:426:30Waning Crescent7Mon
8Tue11:523.910:095.25:300.24:312.25:436:28Waning Crescent8Tue
9Wed12:304.06:130.05:311.95:446:27Waning Crescent9Wed
10Thu1:054.26:52-0.16:271.55:446:25New Moon10Thu
11Fri12:115.31:364.37:27-0.17:211.15:456:24New Moon11Fri
12Sat1:065.32:064.68:000.08:150.75:466:22New Moon12Sat
13Sun2:005.02:354.88:330.29:090.45:476:20Waxing Crescent13Sun
14Mon2:574.73:065.09:060.510:050.35:486:19Waxing Crescent14Mon
15Tue3:574.43:405.29:410.911:050.35:496:17Waxing Crescent15Tue
16Wed5:044.04:195.310:221.35:506:16Waxing Crescent16Wed
17Thu6:193.85:055.212:110.311:10 AM1.75:506:14First Quarter17Thu
18Fri7:363.76:034.91:240.412:102.15:516:13First Quarter18Fri
19Sat8:503.87:194.72:380.31:272.35:526:11First Quarter19Sat
20Sun9:544.08:464.63:450.22:502.35:536:09Waxing Gibbous20Sun
21Mon10:494.29:594.54:420.04:022.15:546:08Waxing Gibbous21Mon
22Tue11:354.310:564.55:30-0.15:031.75:556:06Waxing Gibbous22Tue
23Wed12:164.46:11-0.15:551.45:566:05Waxing Gibbous23Wed
24Thu12:514.46:460.06:421.25:576:03Full Moon24Thu
25Fri12:274.31:214.47:150.27:251.05:576:02Full Moon25Fri
26Sat1:084.21:444.47:390.58:050.85:586:00Full Moon26Sat
27Sun1:484.01:594.57:580.78:420.75:595:58Full Moon27Sun
28Mon2:303.92:104.68:151.09:170.66:005:57Full Moon28Mon
29Tue3:153.72:274.88:391.29:500.66:015:55Waning Gibbous29Tue
30Wed4:063.52:535.09:091.510:250.66:025:54Waning Gibbous30Wed
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 2:06 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 12% 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 (12% 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