Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide (tomorrow) : in 1h 07m at 11:39 pm (1.3 ft)
Next high tide : 5:14 am (4.1 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jul 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:024.86:544.412:19-0.35:488:34Waning Gibbous1Wed
2Thu6:084.37:354.712:441.412:570.05:498:34Third Quarter2Thu
3Fri7:253.88:184.91:571.21:390.45:498:34Third Quarter3Fri
4Sat8:533.49:045.13:150.92:260.85:508:34Third Quarter4Sat
5Sun10:183.49:525.44:310.63:191.35:508:34Waning Crescent5Sun
6Mon11:343.510:405.55:400.34:161.75:518:34Waning Crescent6Mon
7Tue12:413.76:410.05:172.15:528:33Waning Crescent7Tue
8Wed1:393.97:36-0.16:172.35:528:33Waning Crescent8Wed
9Thu12:145.72:324.18:25-0.27:162.55:538:33New Moon9Thu
10Fri12:585.63:214.39:10-0.28:112.55:538:32New Moon10Fri
11Sat1:415.54:054.39:50-0.29:032.45:548:32New Moon11Sat
12Sun2:235.34:464.310:24-0.19:522.25:558:32New Moon12Sun
13Mon3:055.05:224.310:53-0.110:392.05:558:31Waxing Crescent13Mon
14Tue3:484.75:554.311:170.011:261.85:568:31Waxing Crescent14Tue
15Wed4:344.46:244.311:370.25:578:30Waxing Crescent15Wed
16Thu5:244.06:504.312:151.611:59 AM0.45:588:30Waxing Crescent16Thu
17Fri6:253.57:134.41:111.512:270.65:588:29First Quarter17Fri
18Sat7:413.27:404.62:151.31:041.05:598:28First Quarter18Sat
19Sun9:103.08:154.83:271.11:481.56:008:28First Quarter19Sun
20Mon10:343.18:585.04:380.92:391.96:018:27First Quarter20Mon
21Tue11:453.39:475.25:400.63:372.36:018:27Waxing Gibbous21Tue
22Wed12:453.66:350.44:392.56:028:26Waxing Gibbous22Wed
23Thu1:373.87:240.15:422.66:038:25Waxing Gibbous23Thu
24Fri2:234.08:09-0.16:432.56:048:24Waxing Gibbous24Fri
25Sat12:295.83:044.18:49-0.27:422.36:058:24Full Moon25Sat
26Sun1:235.83:414.29:27-0.38:392.06:058:23Full Moon26Sun
27Mon2:175.74:164.310:02-0.39:351.76:068:22Full Moon27Mon
28Tue3:105.54:504.510:35-0.310:311.46:078:21Waning Gibbous28Tue
29Wed4:065.15:244.711:08-0.111:291.26:088:20Waning Gibbous29Wed
30Thu5:054.76:014.911:420.26:098:19Waning Gibbous30Thu
31Fri6:124.26:415.112:331.012:190.56:108:18Third Quarter31Fri
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 2:26 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 spring phase. Tonight's moon is 83% 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 (83% 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