Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 5h 24m at 11:47 am (-0.2 ft)
Next high tide : 6:35 pm (4.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jun 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:353.76:45-0.15:421.35:468:25Waxing Gibbous1Tue
2Wed12:025.41:363.87:41-0.36:331.65:468:25Waxing Gibbous2Wed
3Thu12:415.62:334.08:33-0.47:261.95:468:26Full Moon3Thu
4Fri1:205.63:274.19:23-0.58:192.15:458:27Full Moon4Fri
5Sat2:005.64:204.210:09-0.59:132.25:458:27Full Moon5Sat
6Sun2:425.45:104.210:53-0.410:072.25:458:28Waning Gibbous6Sun
7Mon3:255.15:574.211:33-0.311:012.15:458:28Waning Gibbous7Mon
8Tue4:124.76:434.212:11-0.25:458:29Waning Gibbous8Tue
9Wed5:024.37:284.212:48-0.15:448:29Waning Gibbous9Wed
10Thu6:013.88:124.212:581.81:230.15:448:30Third Quarter10Thu
11Fri7:143.48:544.32:051.62:000.35:448:30Third Quarter11Fri
12Sat8:393.19:334.43:141.32:390.65:448:31Third Quarter12Sat
13Sun10:003.010:104.64:211.03:220.95:448:31Third Quarter13Sun
14Mon11:113.010:424.85:220.64:061.35:448:32Waning Crescent14Mon
15Tue12:143.26:170.44:511.65:448:32Waning Crescent15Tue
16Wed1:103.47:070.15:371.95:448:32Waning Crescent16Wed
17Thu2:033.67:530.06:252.25:448:33Waning Crescent17Thu
18Fri12:165.42:513.88:36-0.17:142.35:458:33New Moon18Fri
19Sat12:545.63:363.99:15-0.28:052.35:458:33New Moon19Sat
20Sun1:375.74:194.09:53-0.38:572.25:458:34New Moon20Sun
21Mon2:235.74:594.110:27-0.39:502.15:458:34New Moon21Mon
22Tue3:125.55:384.111:01-0.410:451.95:458:34Waxing Crescent22Tue
23Wed4:045.26:174.211:35-0.311:431.65:468:34Waxing Crescent23Wed
24Thu5:014.86:574.412:11-0.25:468:34Waxing Crescent24Thu
25Fri6:044.47:404.612:471.412:520.05:468:34First Quarter25Fri
26Sat7:203.98:254.81:591.21:360.35:478:35First Quarter26Sat
27Sun8:463.69:135.03:160.92:270.75:478:35First Quarter27Sun
28Mon10:103.510:025.34:300.63:211.15:478:35Waxing Gibbous28Mon
29Tue11:253.610:515.55:370.34:201.55:488:35Waxing Gibbous29Tue
30Wed12:313.76:380.05:191.85:488:34Waxing Gibbous30Wed
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 3:11 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 80% 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 Waning Gibbous (80% 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