Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 3:31 pm (2.1 ft)
Next high tide : in 5h 00m at 11:04 am (3.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Apr 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:034.411:104.03:261.94:54-0.25:536:30Waning Crescent1Wed
2Thu10:224.511:494.34:381.45:38-0.35:516:31Waning Crescent2Thu
3Fri11:264.55:390.96:17-0.25:506:32Waning Crescent3Fri
4Sat12:234.512:244.56:340.46:520.15:486:33New Moon4Sat
5Sun12:564.81:184.37:270.17:260.45:476:34New Moon5Sun
6Mon1:255.02:124.28:17-0.17:590.85:456:35New Moon6Mon
7Tue1:535.13:074.09:07-0.28:331.25:446:36New Moon7Tue
8Wed2:215.24:063.99:57-0.29:091.55:426:37Waxing Crescent8Wed
9Thu2:505.25:083.710:48-0.19:511.95:416:38Waxing Crescent9Thu
10Fri3:245.16:143.611:420.110:412.15:396:39Waxing Crescent10Fri
11Sat4:044.87:203.612:430.25:386:40First Quarter11Sat
12Sun4:534.48:233.71:460.25:366:41First Quarter12Sun
13Mon5:574.09:203.812:592.32:470.25:356:41First Quarter13Mon
14Tue7:253.710:093.92:202.13:400.15:336:42First Quarter14Tue
15Wed8:553.610:504.03:311.74:240.15:326:43Waxing Gibbous15Wed
16Thu10:043.511:254.14:311.35:000.15:316:44Waxing Gibbous16Thu
17Fri11:003.611:544.25:230.95:300.35:296:45Waxing Gibbous17Fri
18Sat11:503.66:100.65:550.55:286:46Waxing Gibbous18Sat
19Sun12:164.312:383.66:540.36:170.85:266:47Full Moon19Sun
20Mon12:304.51:253.67:350.16:421.15:256:48Full Moon20Mon
21Tue12:444.82:143.68:150.07:121.45:246:49Full Moon21Tue
22Wed1:055.13:053.68:55-0.17:481.75:226:50Full Moon22Wed
23Thu1:355.44:013.69:36-0.18:301.95:216:51Waning Gibbous23Thu
24Fri2:125.55:003.510:21-0.19:182.15:206:52Waning Gibbous24Fri
25Sat2:565.56:043.511:14-0.110:142.25:196:53Waning Gibbous25Sat
26Sun4:465.38:073.51:15-0.16:177:54Waning Gibbous26Sun
27Mon5:464.99:073.612:212.22:21-0.16:167:54Third Quarter27Mon
28Tue6:594.410:003.81:422.13:23-0.26:157:55Third Quarter28Tue
29Wed8:314.110:474.03:091.84:18-0.26:147:56Third Quarter29Wed
30Thu10:033.911:294.34:281.35:06-0.16:127:57Waning Crescent30Thu
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 1:17 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 transitional phase. Tonight's moon is 72% 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 Waxing Gibbous (72% 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