Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 4h 44m at 2:11 am (1.3 ft)
Next high tide : 7:33 am (3.8 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - May 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:263.711:254.34:551.04:460.46:107:59Waxing Gibbous1Tue
2Wed11:373.711:564.75:550.55:300.66:098:00Waxing Gibbous2Wed
3Thu12:413.96:510.26:140.86:088:01Waxing Gibbous3Thu
4Fri12:295.11:404.07:45-0.26:591.16:078:02Full Moon4Fri
5Sat1:035.42:384.08:38-0.47:461.46:068:03Full Moon5Sat
6Sun1:415.63:364.19:31-0.58:361.66:058:04Full Moon6Sun
7Mon2:235.74:344.110:23-0.69:301.86:048:05Waning Gibbous7Mon
8Tue3:095.65:324.111:16-0.610:281.86:038:05Waning Gibbous8Tue
9Wed3:585.46:314.112:08-0.56:028:06Waning Gibbous9Wed
10Thu4:535.07:294.11:02-0.46:018:07Waning Gibbous10Thu
11Fri5:584.58:264.212:401.81:56-0.26:008:08Third Quarter11Fri
12Sat7:184.09:204.31:551.62:50-0.15:598:09Third Quarter12Sat
13Sun8:453.610:104.43:101.33:420.15:588:10Third Quarter13Sun
14Mon10:033.410:564.64:210.94:300.35:578:11Third Quarter14Mon
15Tue11:113.411:364.75:250.55:130.55:568:12Waning Crescent15Tue
16Wed12:103.46:210.25:530.85:568:13Waning Crescent16Wed
17Thu12:114.81:043.57:110.06:291.25:558:13Waning Crescent17Thu
18Fri12:404.91:553.67:58-0.27:031.55:548:14Waning Crescent18Fri
19Sat1:045.02:433.78:41-0.27:361.85:538:15New Moon19Sat
20Sun1:245.03:303.79:21-0.28:122.05:538:16New Moon20Sun
21Mon1:465.14:163.89:57-0.18:512.15:528:17New Moon21Mon
22Tue2:165.25:003.810:30-0.19:332.15:518:18New Moon22Tue
23Wed2:525.25:433.811:00-0.110:182.15:518:18Waxing Crescent23Wed
24Thu3:335.06:253.811:27-0.211:062.05:508:19Waxing Crescent24Thu
25Fri4:194.87:073.711:56-0.25:498:20Waxing Crescent25Fri
26Sat5:104.57:493.812:001.912:32-0.25:498:21Waxing Crescent26Sat
27Sun6:094.18:293.91:011.71:15-0.15:488:21First Quarter27Sun
28Mon7:183.89:094.12:101.52:030.15:488:22First Quarter28Mon
29Tue8:423.59:484.43:251.22:540.45:478:23First Quarter29Tue
30Wed10:093.410:274.84:360.83:460.75:478:24Waxing Gibbous30Wed
31Thu11:263.511:075.25:410.44:381.05:478:24Waxing Gibbous31Thu
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 4:52 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 transitional phase. Tonight's moon is 38% 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 shifting between spring and neap.

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 First Quarter (38% illuminated). This places Port Chicago, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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