Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 5h 51m at 9:59 am (-0.1 ft)
Next high tide : 4:21 pm (4.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Apr 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:444.52:094.18:260.58:030.75:526:31Full Moon1Sat
2Sun2:004.62:534.09:030.38:330.85:516:32Full Moon2Sun
3Mon2:234.83:423.99:410.29:101.05:496:32Waning Gibbous3Mon
4Tue2:555.04:383.710:230.29:521.25:486:33Waning Gibbous4Tue
5Wed3:355.05:443.611:120.210:411.55:466:34Waning Gibbous5Wed
6Thu4:215.06:573.512:170.25:456:35Third Quarter6Thu
7Fri5:164.88:093.61:330.25:436:36Third Quarter7Fri
8Sat6:244.59:143.812:531.82:470.15:426:37Third Quarter8Sat
9Sun7:484.310:104.02:181.73:500.05:406:38Third Quarter9Sun
10Mon9:174.310:594.33:391.54:44-0.15:396:39Waning Crescent10Mon
11Tue10:324.411:424.64:471.15:32-0.15:386:40Waning Crescent11Tue
12Wed11:344.45:460.76:160.05:366:41Waning Crescent12Wed
13Thu12:224.812:304.56:410.46:560.25:356:42New Moon13Thu
14Fri12:584.91:234.47:330.27:340.55:336:43New Moon14Fri
15Sat1:315.02:154.38:230.08:110.85:326:44New Moon15Sat
16Sun2:025.03:084.29:10-0.18:471.05:306:44New Moon16Sun
17Mon2:315.04:034.09:57-0.19:251.35:296:45Waxing Crescent17Mon
18Tue3:014.95:003.910:440.010:071.55:286:46Waxing Crescent18Tue
19Wed3:354.76:013.811:340.110:551.75:266:47Waxing Crescent19Wed
20Thu4:144.57:033.712:270.25:256:48Waxing Crescent20Thu
21Fri5:024.28:043.71:250.25:246:49First Quarter21Fri
22Sat6:033.99:003.81:021.92:230.25:226:50First Quarter22Sat
23Sun7:233.69:514.02:161.83:170.25:216:51First Quarter23Sun
24Mon8:473.510:354.13:251.54:040.25:206:52First Quarter24Mon
25Tue9:563.511:134.24:241.24:440.35:186:53Waxing Gibbous25Tue
26Wed10:533.611:454.35:170.95:190.45:176:54Waxing Gibbous26Wed
27Thu11:443.76:040.65:500.65:166:55Waxing Gibbous27Thu
28Fri12:114.412:323.86:490.46:190.85:156:56Waxing Gibbous28Fri
29Sat12:314.61:193.87:310.26:491.05:136:57Full Moon29Sat
30Sun12:494.83:073.99:120.08:241.26:127:57Full Moon30Sun
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 1:10 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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