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 6h 49m 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 - Nov 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:504.31:575.48:131.49:42-0.46:345:09Waxing Crescent1Fri
2Sat3:484.32:405.39:031.510:35-0.36:355:08Waxing Crescent2Sat
3Sun4:484.23:275.09:581.611:29-0.26:365:07Waxing Crescent3Sun
4Mon5:474.14:214.610:571.76:375:06Waxing Crescent4Mon
5Tue6:474.15:264.212:24-0.112:041.76:385:05First Quarter5Tue
6Wed7:454.16:473.81:200.01:161.66:395:04First Quarter6Wed
7Thu8:404.28:103.62:150.12:291.36:405:03First Quarter7Thu
8Fri9:304.39:233.53:070.23:351.06:415:02First Quarter8Fri
9Sat10:144.410:243.53:540.34:340.76:425:01Waxing Gibbous9Sat
10Sun10:534.511:193.64:360.55:270.46:435:00Waxing Gibbous10Sun
11Mon11:264.65:130.76:150.26:454:59Waxing Gibbous11Mon
12Tue12:093.611:54 AM4.75:471.06:590.16:464:58Waxing Gibbous12Tue
13Wed12:563.712:154.86:181.37:410.06:474:57Full Moon13Wed
14Thu1:423.712:344.96:491.58:190.06:484:57Full Moon14Thu
15Fri2:273.812:575.07:231.78:550.06:494:56Full Moon15Fri
16Sat3:123.81:285.18:011.89:270.06:504:55Full Moon16Sat
17Sun3:573.82:065.18:431.99:580.06:514:55Waning Gibbous17Sun
18Mon4:433.72:495.09:291.910:30-0.16:524:54Waning Gibbous18Mon
19Tue5:293.73:374.810:201.811:09-0.16:534:53Waning Gibbous19Tue
20Wed6:183.74:324.511:181.711:560.06:544:53Waning Gibbous20Wed
21Thu7:073.85:374.212:251.66:554:52Third Quarter21Thu
22Fri7:573.96:553.812:500.11:401.46:564:52Third Quarter22Fri
23Sat8:444.28:233.71:470.22:561.06:574:51Third Quarter23Sat
24Sun9:284.59:443.72:440.44:040.66:584:51Waning Crescent24Sun
25Mon10:104.810:533.83:380.65:060.26:594:50Waning Crescent25Mon
26Tue10:505.111:564.04:290.86:03-0.17:004:50Waning Crescent26Tue
27Wed11:295.45:191.16:58-0.37:014:50New Moon27Wed
28Thu12:544.112:095.56:091.37:50-0.57:024:49New Moon28Thu
29Fri1:504.212:505.67:011.68:41-0.57:034:49New Moon29Fri
30Sat2:454.31:325.57:531.79:29-0.57:044:49New Moon30Sat
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