Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 2h 30m at 12:32 am (1.2 ft)
Next high tide : 6:16 am (3.7 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jun 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:045.01:163.47:22-0.26:191.55:478:24Waning Crescent1Fri
2Sat12:325.12:113.68:10-0.36:551.95:468:25New Moon2Sat
3Sun12:555.23:033.78:55-0.37:332.35:468:25New Moon3Sun
4Mon1:175.33:533.89:36-0.28:142.55:468:26New Moon4Mon
5Tue1:435.34:413.910:14-0.28:582.65:458:27New Moon5Tue
6Wed2:165.35:263.910:49-0.19:442.65:458:27Waxing Crescent6Wed
7Thu2:555.26:093.911:20-0.110:322.55:458:28Waxing Crescent7Thu
8Fri3:385.06:503.811:47-0.211:222.35:458:28Waxing Crescent8Fri
9Sat4:264.77:293.812:15-0.25:448:29Waxing Crescent9Sat
10Sun5:184.48:053.812:162.112:46-0.25:448:30Waxing Crescent10Sun
11Mon6:173.98:383.91:161.91:23-0.15:448:30First Quarter11Mon
12Tue7:273.59:094.12:231.62:030.15:448:30First Quarter12Tue
13Wed8:513.39:384.53:351.22:470.55:448:31First Quarter13Wed
14Thu10:193.210:104.94:430.83:330.95:448:31Waxing Gibbous14Thu
15Fri11:383.210:465.35:470.54:201.45:448:32Waxing Gibbous15Fri
16Sat12:483.46:470.15:101.85:448:32Waxing Gibbous16Sat
17Sun1:523.67:43-0.26:042.25:448:32Waxing Gibbous17Sun
18Mon12:116.02:523.88:38-0.47:032.45:448:33Full Moon18Mon
19Tue1:006.23:484.09:30-0.58:072.55:448:33Full Moon19Tue
20Wed1:526.14:414.110:20-0.69:132.55:458:33Full Moon20Wed
21Thu2:475.95:314.211:07-0.610:192.35:458:34Waning Gibbous21Thu
22Fri3:445.66:204.311:52-0.611:242.05:458:34Waning Gibbous22Fri
23Sat4:455.17:064.412:35-0.55:458:34Waning Gibbous23Sat
24Sun5:524.57:524.512:311.81:17-0.25:468:34Third Quarter24Sun
25Mon7:073.98:384.61:421.51:580.05:468:34Third Quarter25Mon
26Tue8:283.59:224.82:551.12:400.45:468:34Third Quarter26Tue
27Wed9:473.310:044.94:070.83:230.85:478:34Third Quarter27Wed
28Thu11:003.210:425.15:140.44:081.35:478:34Waning Crescent28Thu
29Fri12:073.46:140.14:531.85:478:34Waning Crescent29Fri
30Sat1:083.67:070.05:402.25:488:34Waning Crescent30Sat
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 3:24 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 74% 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 Waning Gibbous (74% 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