Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 11:47 am (-0.2 ft)
Next high tide : in 2h 28m at 4:28 am (4.6 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 - Oct 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:014.02:384.78:461.19:480.57:046:51Full Moon1Fri
2Sat3:443.92:544.89:101.310:230.57:056:49Full Moon2Sat
3Sun4:303.83:184.99:391.510:560.57:056:48Waning Gibbous3Sun
4Mon5:193.73:505.010:151.711:300.57:066:46Waning Gibbous4Mon
5Tue6:153.54:305.010:581.87:076:45Waning Gibbous5Tue
6Wed7:163.55:174.912:130.511:48 AM1.97:086:43Waning Gibbous6Wed
7Thu8:203.46:124.71:090.512:472.07:096:42Third Quarter7Thu
8Fri9:213.57:184.42:180.41:561.97:106:40Third Quarter8Fri
9Sat10:143.68:364.33:260.43:131.77:116:39Third Quarter9Sat
10Sun11:003.89:594.34:240.34:251.47:126:37Waning Crescent10Sun
11Mon11:404.111:124.35:130.25:291.07:136:36Waning Crescent11Mon
12Tue12:164.45:560.36:280.67:146:34Waning Crescent12Tue
13Wed12:164.412:494.76:370.47:230.27:156:33Waning Crescent13Wed
14Thu1:154.51:225.07:160.68:180.07:166:31New Moon14Thu
15Fri2:124.51:555.37:570.99:12-0.27:176:30New Moon15Fri
16Sat3:094.42:315.58:391.210:05-0.37:186:29New Moon16Sat
17Sun4:074.33:115.59:251.411:00-0.27:196:27Waxing Crescent17Sun
18Mon5:074.23:545.410:151.611:56-0.27:206:26Waxing Crescent18Mon
19Tue6:094.14:425.111:091.87:216:25Waxing Crescent19Tue
20Wed7:124.05:384.712:54-0.112:111.87:226:23First Quarter20Wed
21Thu8:144.06:494.31:530.01:221.87:236:22First Quarter21Thu
22Fri9:134.08:163.92:530.12:381.77:246:21First Quarter22Fri
23Sat10:084.19:383.73:490.13:511.47:256:19First Quarter23Sat
24Sun10:564.310:473.74:390.14:561.07:266:18Waxing Gibbous24Sun
25Mon11:394.411:453.75:240.35:530.77:276:17Waxing Gibbous25Mon
26Tue12:154.56:030.46:440.47:286:16Waxing Gibbous26Tue
27Wed12:373.712:464.66:370.77:310.27:296:14Waxing Gibbous27Wed
28Thu1:253.71:114.67:071.08:150.17:306:13Full Moon28Thu
29Fri2:123.71:294.77:341.38:560.17:316:12Full Moon29Fri
30Sat2:583.71:464.98:031.69:340.17:326:11Full Moon30Sat
31Sun2:443.71:095.07:351.89:090.16:335:10Full Moon31Sun
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 8:07 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 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