Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 10:41 am (0.0 ft)
Next high tide : in 3h 30m at 3:35 am (4.8 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Apr 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:424.82:553.88:560.38:201.15:526:31New Moon1Mon
2Tue2:055.03:423.79:290.28:551.35:516:31Waxing Crescent2Tue
3Wed2:365.14:343.610:050.29:361.45:496:32Waxing Crescent3Wed
4Thu3:155.25:343.510:470.210:241.65:486:33Waxing Crescent4Thu
5Fri4:005.16:423.411:410.211:201.75:466:34Waxing Crescent5Fri
6Sat4:534.97:503.512:510.25:456:35First Quarter6Sat
7Sun5:574.68:533.612:301.82:070.25:436:36First Quarter7Sun
8Mon7:154.39:473.81:511.73:130.15:426:37First Quarter8Mon
9Tue8:424.210:344.13:121.44:090.15:416:38Waxing Gibbous9Tue
10Wed10:014.311:164.44:221.04:570.15:396:39Waxing Gibbous10Wed
11Thu11:084.311:544.75:240.65:410.25:386:40Waxing Gibbous11Thu
12Fri12:074.46:200.26:220.45:366:41Waxing Gibbous12Fri
13Sat12:304.91:034.47:140.07:010.75:356:42Full Moon13Sat
14Sun1:045.11:574.38:06-0.27:400.95:336:43Full Moon14Sun
15Mon1:365.22:524.28:56-0.38:201.25:326:43Full Moon15Mon
16Tue2:095.23:484.19:46-0.39:021.45:306:44Waning Gibbous16Tue
17Wed2:435.14:454.010:35-0.29:481.65:296:45Waning Gibbous17Wed
18Thu3:204.95:453.911:26-0.110:401.85:286:46Waning Gibbous18Thu
19Fri4:034.66:453.812:200.05:266:47Waning Gibbous19Fri
20Sat4:544.27:443.81:160.15:256:48Third Quarter20Sat
21Sun6:013.88:403.912:501.92:120.15:246:49Third Quarter21Sun
22Mon7:293.59:314.02:061.73:050.25:226:50Third Quarter22Mon
23Tue8:543.410:164.13:161.43:520.25:216:51Third Quarter23Tue
24Wed10:023.410:544.34:181.04:330.35:206:52Waning Crescent24Wed
25Thu10:593.411:264.45:110.75:080.55:186:53Waning Crescent25Thu
26Fri11:503.511:534.56:000.45:400.85:176:54Waning Crescent26Fri
27Sat12:383.66:440.26:091.05:166:55Waning Crescent27Sat
28Sun12:134.72:243.68:260.17:391.36:157:56New Moon28Sun
29Mon1:324.93:113.79:060.08:121.56:137:56New Moon29Mon
30Tue1:565.13:583.79:44-0.18:511.66:127:57New Moon30Tue
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 7:08 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 90% 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 (90% 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