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 3h 11m 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 - Jun 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:155.66:134.111:40-0.410:512.45:468:25Waxing Crescent1Tue
2Wed4:035.27:074.112:28-0.35:468:26Waxing Crescent2Wed
3Thu4:574.87:584.21:15-0.25:468:27Waxing Crescent3Thu
4Fri6:004.28:474.21:022.22:00-0.15:458:27First Quarter4Fri
5Sat7:153.79:334.22:131.92:440.15:458:28First Quarter5Sat
6Sun8:393.310:154.33:251.53:260.35:458:28First Quarter6Sun
7Mon9:573.110:534.54:311.14:040.55:458:29First Quarter7Mon
8Tue11:073.111:244.65:310.74:390.95:458:29Waxing Gibbous8Tue
9Wed12:103.16:250.35:121.35:448:30Waxing Gibbous9Wed
10Thu1:083.37:150.15:461.75:448:30Waxing Gibbous10Thu
11Fri12:095.02:023.48:01-0.16:222.15:448:31Waxing Gibbous11Fri
12Sat12:285.22:553.68:45-0.17:032.45:448:31Full Moon12Sat
13Sun12:535.43:453.89:26-0.27:482.65:448:32Full Moon13Sun
14Mon1:275.64:323.910:04-0.28:372.75:448:32Full Moon14Mon
15Tue2:075.65:173.910:41-0.29:282.65:448:33Full Moon15Tue
16Wed2:525.65:593.911:16-0.310:212.55:458:33Waning Gibbous16Wed
17Thu3:415.46:403.911:51-0.411:162.35:458:33Waning Gibbous17Thu
18Fri4:345.17:204.012:27-0.45:458:33Waning Gibbous18Fri
19Sat5:324.78:004.112:172.01:07-0.35:458:34Third Quarter19Sat
20Sun6:404.28:404.31:251.71:49-0.15:458:34Third Quarter20Sun
21Mon8:023.79:204.62:411.42:350.25:458:34Third Quarter21Mon
22Tue9:323.510:004.93:581.03:220.65:468:34Third Quarter22Tue
23Wed10:563.410:405.35:100.64:111.05:468:34Waning Crescent23Wed
24Thu12:103.56:160.25:011.55:468:35Waning Crescent24Thu
25Fri1:173.77:16-0.15:541.95:478:35Waning Crescent25Fri
26Sat12:025.82:183.98:11-0.26:502.35:478:35New Moon26Sat
27Sun12:455.93:164.19:03-0.37:482.55:478:35New Moon27Sun
28Mon1:305.94:104.29:52-0.48:482.65:488:35New Moon28Mon
29Tue2:165.85:004.310:36-0.39:462.55:488:35New Moon29Tue
30Wed3:035.55:474.311:17-0.310:422.45:498:35Waxing Crescent30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415144)

Common Questions About Port Chicago, CA Tides

Show All
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