Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 5:23 pm (2.5 ft)
Next high tide : in 11m at 12:59 pm (3.9 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Sep 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:584.210:195.14:580.24:161.75:376:38Waxing Gibbous1Mon
2Tue11:504.411:165.15:500.05:191.65:386:36Waxing Gibbous2Tue
3Wed12:364.66:360.06:161.55:396:35Waxing Gibbous3Wed
4Thu12:065.11:184.77:180.17:081.35:406:33Full Moon4Thu
5Fri12:535.01:564.77:550.27:561.25:416:32Full Moon5Fri
6Sat1:384.82:304.78:290.48:421.15:426:30Full Moon6Sat
7Sun2:224.63:004.68:580.69:251.05:426:29Waning Gibbous7Sun
8Mon3:074.43:254.69:240.810:071.05:436:27Waning Gibbous8Mon
9Tue3:554.13:484.69:511.010:511.05:446:26Waning Gibbous9Tue
10Wed4:483.94:144.610:221.211:390.95:456:24Waning Gibbous10Wed
11Thu5:503.64:474.611:011.45:466:23Third Quarter11Thu
12Fri6:593.55:304.512:360.911:49 AM1.65:476:21Third Quarter12Fri
13Sat8:103.56:244.41:440.912:471.85:486:20Third Quarter13Sat
14Sun9:153.57:284.42:510.81:551.95:486:18Third Quarter14Sun
15Mon10:123.78:394.43:510.63:051.95:496:16Waning Crescent15Mon
16Tue11:003.99:454.54:410.54:081.85:506:15Waning Crescent16Tue
17Wed11:424.110:434.75:250.35:041.55:516:13Waning Crescent17Wed
18Thu12:184.26:030.35:551.35:526:12Waning Crescent18Thu
19Fri12:504.46:380.36:441.05:536:10New Moon19Fri
20Sat12:264.91:194.57:110.47:320.85:546:09New Moon20Sat
21Sun1:164.91:474.77:450.58:210.65:546:07New Moon21Sun
22Mon2:074.82:175.08:200.69:110.45:556:05Waxing Crescent22Mon
23Tue3:014.62:515.18:590.810:040.35:566:04Waxing Crescent23Tue
24Wed4:004.43:315.29:411.011:020.35:576:02Waxing Crescent24Wed
25Thu5:054.24:185.110:301.25:586:01Waxing Crescent25Thu
26Fri6:164.05:135.012:070.311:26 AM1.45:595:59First Quarter26Fri
27Sat7:293.96:214.71:180.312:341.66:005:58First Quarter27Sat
28Sun8:384.07:454.52:280.31:521.76:015:56First Quarter28Sun
29Mon9:414.29:064.53:330.23:091.66:015:54Waxing Gibbous29Mon
30Tue10:354.410:144.54:290.14:171.36:025:53Waxing Gibbous30Tue
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 3:11 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 spring phase. Tonight's moon is 12% 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 (12% 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