Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 3h 55m at 7:39 am (-0.1 ft)
Next high tide : 1:50 pm (4.1 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 - Aug 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:564.06:440.25:442.15:117:17Waning Crescent1Thu
2Fri1:384.27:250.16:392.05:117:16New Moon2Fri
3Sat12:165.72:164.38:020.07:331.85:127:15New Moon3Sat
4Sun1:075.72:534.58:370.08:261.65:137:14New Moon4Sun
5Mon1:585.53:284.69:120.09:201.35:147:13Waxing Crescent5Mon
6Tue2:525.34:054.89:470.110:161.25:157:12Waxing Crescent6Tue
7Wed3:494.94:444.910:240.311:171.05:167:11Waxing Crescent7Wed
8Thu4:524.55:275.011:050.55:177:10First Quarter8Thu
9Fri6:054.16:175.112:250.911:52 AM0.95:177:09First Quarter9Fri
10Sat7:253.87:155.11:390.812:471.25:187:07First Quarter10Sat
11Sun8:433.88:185.12:530.61:511.55:197:06First Quarter11Sun
12Mon9:543.99:215.24:010.43:001.75:207:05Waxing Gibbous12Mon
13Tue10:574.110:195.25:020.24:081.85:217:04Waxing Gibbous13Tue
14Wed11:514.311:115.25:550.05:091.95:227:03Waxing Gibbous14Wed
15Thu12:404.46:420.06:051.85:237:01Waxing Gibbous15Thu
16Fri1:244.57:230.06:561.85:247:00Full Moon16Fri
17Sat12:405.12:034.68:010.17:431.75:246:59Full Moon17Sat
18Sun1:204.92:394.58:330.38:261.65:256:57Full Moon18Sun
19Mon1:594.83:094.59:010.49:081.55:266:56Full Moon19Mon
20Tue2:394.53:354.59:240.59:471.45:276:55Waning Gibbous20Tue
21Wed3:214.33:564.59:450.710:271.35:286:53Waning Gibbous21Wed
22Thu4:074.04:184.610:120.811:111.25:296:52Waning Gibbous22Thu
23Fri5:013.74:464.710:451.05:306:51Waning Gibbous23Fri
24Sat6:103.55:244.712:021.211:27 AM1.35:316:49Third Quarter24Sat
25Sun7:293.36:114.71:091.112:171.65:316:48Third Quarter25Sun
26Mon8:453.47:064.82:251.01:161.85:326:46Third Quarter26Mon
27Tue9:523.58:104.83:340.82:232.05:336:45Third Quarter27Tue
28Wed10:483.79:165.04:320.63:312.05:346:43Waning Crescent28Wed
29Thu11:363.910:185.15:220.44:341.85:356:42Waning Crescent29Thu
30Fri12:184.16:050.25:321.75:366:41Waning Crescent30Fri
31Sat12:574.36:460.26:281.45:376:39New Moon31Sat
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 10:44 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