Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 8:26 am (-0.2 ft)
Next high tide : in 2h 16m at 12:21 am (5.8 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Mar 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:125.011:294.03:271.85:150.16:406:00Waxing Gibbous1Wed
2Thu10:235.14:391.66:04-0.16:396:01Waxing Gibbous2Thu
3Fri12:144.211:26 AM5.25:421.36:47-0.16:376:02Waxing Gibbous3Fri
4Sat12:554.512:235.26:401.07:28-0.16:366:03Full Moon4Sat
5Sun1:344.71:175.17:350.78:060.06:346:04Full Moon5Sun
6Mon2:114.82:115.08:280.58:420.26:336:05Full Moon6Mon
7Tue2:464.93:054.79:200.39:170.56:316:06Waning Gibbous7Tue
8Wed3:215.04:014.410:130.39:540.86:306:07Waning Gibbous8Wed
9Thu3:564.95:024.111:080.310:341.16:296:08Waning Gibbous9Thu
10Fri4:334.86:093.812:080.46:276:09Waning Gibbous10Fri
11Sat5:174.67:203.61:140.46:266:10Third Quarter11Sat
12Sun6:114.48:303.612:171.72:220.46:246:11Third Quarter12Sun
13Mon7:214.29:333.81:271.83:260.36:236:12Third Quarter13Mon
14Tue8:394.110:293.92:421.94:220.26:216:13Third Quarter14Tue
15Wed9:474.111:174.13:521.75:100.16:206:14Waning Crescent15Wed
16Thu10:434.111:584.24:511.55:520.16:186:15Waning Crescent16Thu
17Fri11:314.25:421.26:270.16:166:16Waning Crescent17Fri
18Sat12:344.312:134.26:281.06:580.36:156:17Waning Crescent18Sat
19Sun1:054.412:544.27:100.97:240.46:136:18New Moon19Sun
20Mon1:294.41:334.17:500.77:470.66:126:19New Moon20Mon
21Tue1:474.52:134.08:260.68:100.76:106:20New Moon21Tue
22Wed2:044.72:553.99:010.58:380.96:096:21New Moon22Wed
23Thu2:264.93:413.89:360.49:121.06:076:22Waxing Crescent23Thu
24Fri2:575.04:353.610:140.39:521.26:066:23Waxing Crescent24Fri
25Sat3:355.15:393.511:000.310:391.56:046:24Waxing Crescent25Sat
26Sun4:215.06:543.412:000.46:036:24First Quarter26Sun
27Mon5:154.98:073.41:190.46:016:25First Quarter27Mon
28Tue6:204.69:133.612:471.82:380.36:006:26First Quarter28Tue
29Wed7:394.510:093.92:091.73:440.25:586:27First Quarter29Wed
30Thu9:054.410:574.23:291.54:390.15:576:28Waxing Gibbous30Thu
31Fri10:204.511:404.44:381.15:260.05:556:29Waxing Gibbous31Fri
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 4:23 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 5% 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 Crescent (5% 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