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 24m at 2:13 pm (0.2 ft)
Next high tide : 9:00 pm (4.6 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Mar 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:024.311:26 AM4.65:331.66:40-0.26:396:01Waning Crescent1Tue
2Wed12:434.412:114.56:251.47:15-0.16:386:02New Moon2Wed
3Thu1:194.412:524.47:101.27:450.16:366:03New Moon3Thu
4Fri1:504.51:324.37:531.08:100.36:356:04New Moon4Fri
5Sat2:164.52:104.18:320.98:300.56:336:05New Moon5Sat
6Sun2:344.52:504.09:080.88:480.76:326:06New Moon6Sun
7Mon2:484.63:333.89:430.79:120.96:316:07Waxing Crescent7Mon
8Tue3:064.74:223.610:170.69:431.16:296:08Waxing Crescent8Tue
9Wed3:324.95:223.410:550.610:211.46:286:09Waxing Crescent9Wed
10Thu4:084.96:353.211:430.611:081.76:266:10Waxing Crescent10Thu
11Fri4:514.97:533.212:520.76:256:11First Quarter11Fri
12Sat5:444.89:043.312:041.92:180.66:236:12First Quarter12Sat
13Sun7:484.611:043.51:142.14:290.47:227:13First Quarter13Sun
14Mon9:044.611:523.73:332.05:260.27:207:14First Quarter14Mon
15Tue10:234.64:481.86:130.07:197:15Waxing Gibbous15Tue
16Wed12:333.911:33 AM4.75:531.46:540.07:177:16Waxing Gibbous16Wed
17Thu1:094.212:344.86:511.07:320.07:167:16Waxing Gibbous17Thu
18Fri1:424.41:314.87:450.68:080.17:147:17Full Moon18Fri
19Sat2:134.72:264.88:380.38:430.37:137:18Full Moon19Sat
20Sun2:445.03:214.69:310.19:190.67:117:19Full Moon20Sun
21Mon3:175.24:194.410:24-0.19:580.97:097:20Waning Gibbous21Mon
22Tue3:525.35:204.111:20-0.110:411.27:087:21Waning Gibbous22Tue
23Wed4:315.36:273.912:190.07:067:22Waning Gibbous23Wed
24Thu5:155.17:383.71:240.17:057:23Third Quarter24Thu
25Fri6:084.88:493.712:271.82:330.17:037:24Third Quarter25Fri
26Sat7:184.49:553.81:391.93:410.17:027:25Third Quarter26Sat
27Sun8:484.110:544.03:011.94:420.07:007:26Third Quarter27Sun
28Mon10:124.011:444.24:191.75:34-0.16:597:27Waning Crescent28Mon
29Tue11:184.05:251.46:190.06:577:28Waning Crescent29Tue
30Wed12:274.312:134.06:221.06:570.16:567:29Waning Crescent30Wed
31Thu1:054.41:003.97:110.77:300.36:547:30Waning Crescent31Thu
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 5:36 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 neap phase. Tonight's moon is 49% 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 minimum.

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 (49% illuminated). This places Port Chicago, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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