Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 3:32 am (0.8 ft)
Next high tide : in 4h 55m at 7:15 pm (4.8 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Feb 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:594.24:233.910:591.410:550.47:125:31Waxing Crescent1Mon
2Tue5:234.25:223.511:491.311:310.67:115:32Waxing Crescent2Tue
3Wed5:534.36:423.212:531.27:105:33First Quarter3Wed
4Thu6:314.48:163.112:151.02:121.17:095:34First Quarter4Thu
5Fri7:174.69:393.21:081.33:290.87:085:35First Quarter5Fri
6Sat8:104.710:463.42:081.74:340.67:075:36First Quarter6Sat
7Sun9:075.011:433.73:141.95:290.37:065:37Waxing Gibbous7Sun
8Mon10:055.24:182.06:180.07:055:39Waxing Gibbous8Mon
9Tue12:324.011:01 AM5.45:202.07:03-0.27:045:40Waxing Gibbous9Tue
10Wed1:174.111:56 AM5.66:181.87:45-0.37:035:41Full Moon10Wed
11Thu1:584.312:495.77:131.68:24-0.37:025:42Full Moon11Thu
12Fri2:374.41:425.68:071.49:02-0.37:015:43Full Moon12Fri
13Sat3:154.52:365.39:011.19:39-0.26:595:44Waning Gibbous13Sat
14Sun3:534.63:335.09:560.910:160.06:585:45Waning Gibbous14Sun
15Mon4:324.74:344.510:540.810:550.36:575:46Waning Gibbous15Mon
16Tue5:134.75:434.111:590.711:390.76:565:47Waning Gibbous16Tue
17Wed6:004.77:013.71:110.66:555:48Third Quarter17Wed
18Thu6:544.78:213.612:301.12:260.56:535:50Third Quarter18Thu
19Fri7:564.79:353.71:321.43:380.36:525:51Third Quarter19Fri
20Sat9:004.710:403.92:421.74:410.16:515:52Waning Crescent20Sat
21Sun10:014.711:364.13:521.85:36-0.16:505:53Waning Crescent21Sun
22Mon10:544.74:541.86:23-0.26:485:54Waning Crescent22Mon
23Tue12:244.311:40 AM4.85:491.87:05-0.26:475:55Waning Crescent23Tue
24Wed1:084.412:214.76:381.77:42-0.16:465:56New Moon24Wed
25Thu1:464.412:594.77:221.58:140.06:445:57New Moon25Thu
26Fri2:204.41:354.58:031.48:400.26:435:58New Moon26Fri
27Sat2:494.32:114.48:411.39:020.36:415:59New Moon27Sat
28Sun3:124.32:484.29:161.19:200.46:406:00Waxing Crescent28Sun
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 11:23 pm — 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 neap phase. Tonight's moon is 47% 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 minimum.

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 First Quarter (47% illuminated). This places Port Chicago, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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