Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 3h 30m at 1:32 pm (-0.1 ft)
Next high tide : 8:15 pm (4.5 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Sep 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:194.06:110.25:122.36:387:36Waning Crescent1Sat
2Sun1:064.26:570.16:092.26:397:35Waning Crescent2Sun
3Mon1:484.37:380.16:592.06:407:33Waning Crescent3Mon
4Tue12:354.82:254.38:120.17:451.86:417:32New Moon4Tue
5Wed1:164.82:564.38:420.18:271.66:427:30New Moon5Wed
6Thu1:564.83:224.29:060.29:061.46:437:29New Moon6Thu
7Fri2:354.73:404.39:250.39:441.26:437:27New Moon7Fri
8Sat3:164.53:544.49:450.410:211.06:447:26Waxing Crescent8Sat
9Sun4:004.34:114.610:100.611:010.96:457:24Waxing Crescent9Sun
10Mon4:504.04:384.910:410.811:460.86:467:23Waxing Crescent10Mon
11Tue5:493.85:145.111:191.16:477:21Waxing Crescent11Tue
12Wed7:043.55:585.212:420.812:041.56:487:20First Quarter12Wed
13Thu8:323.46:515.22:010.712:591.96:497:18First Quarter13Thu
14Fri9:543.57:555.13:290.62:062.26:497:16First Quarter14Fri
15Sat11:033.79:135.04:450.43:272.36:507:15Waxing Gibbous15Sat
16Sun12:003.95:470.24:492.16:517:13Waxing Gibbous16Sun
17Mon12:484.26:39-0.15:591.86:527:12Waxing Gibbous17Mon
18Tue1:314.47:25-0.27:011.56:537:10Waxing Gibbous18Tue
19Wed12:495.12:104.58:07-0.17:581.16:547:09Full Moon19Wed
20Thu1:455.12:464.68:450.08:510.86:557:07Full Moon20Thu
21Fri2:384.93:194.79:190.29:430.66:557:05Full Moon21Fri
22Sat3:314.63:504.89:520.510:340.56:567:04Waning Gibbous22Sat
23Sun4:264.34:194.810:240.811:260.46:577:02Waning Gibbous23Sun
24Mon5:254.04:474.910:581.26:587:01Waning Gibbous24Mon
25Tue6:303.85:204.812:200.411:36 AM1.56:596:59Waning Gibbous25Tue
26Wed7:403.65:594.71:200.512:231.97:006:58Third Quarter26Wed
27Thu8:513.66:484.52:260.51:222.27:016:56Third Quarter27Thu
28Fri9:573.77:554.33:340.52:342.37:026:54Third Quarter28Fri
29Sat10:563.99:164.24:350.33:492.27:026:53Third Quarter29Sat
30Sun11:464.110:294.25:270.24:552.07:036:51Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415144)

Common Questions About Port Chicago, CA Tides

Show All
What time does the tide turn (slack tide) in Port Chicago, CA today?

Slack tide in Port Chicago, CA is approximately 4:53 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 transitional phase. Tonight's moon is 38% 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 shifting between spring and neap.

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 (38% illuminated). This places Port Chicago, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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