Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 2h 17m at 2:37 pm (1.6 ft)
Next high tide : 9:22 pm (4.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Sep 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:493.96:340.15:282.26:377:38Waxing Gibbous1Wed
2Thu1:274.07:150.06:281.96:387:37Waxing Gibbous2Thu
3Fri12:155.22:014.27:53-0.17:241.56:397:35Full Moon3Fri
4Sat1:125.32:324.48:27-0.18:171.16:407:34Full Moon4Sat
5Sun2:065.23:014.69:000.19:100.86:417:32Full Moon5Sun
6Mon3:005.03:314.99:320.310:040.56:417:31Waning Gibbous6Mon
7Tue3:564.74:035.210:060.611:000.46:427:29Waning Gibbous7Tue
8Wed4:564.44:395.410:430.96:437:28Waning Gibbous8Wed
9Thu6:044.05:195.412:010.411:24 AM1.36:447:26Waning Gibbous9Thu
10Fri7:203.86:085.31:090.412:141.76:457:25Third Quarter10Fri
11Sat8:383.77:075.12:240.51:162.06:467:23Third Quarter11Sat
12Sun9:523.88:234.93:390.42:322.26:477:21Third Quarter12Sun
13Mon10:573.99:464.74:470.33:532.26:477:20Waning Crescent13Mon
14Tue11:524.210:584.75:450.15:051.96:487:18Waning Crescent14Tue
15Wed12:394.36:330.06:061.66:497:17Waning Crescent15Wed
16Thu1:204.47:140.06:591.46:507:15Waning Crescent16Thu
17Fri12:444.61:564.47:490.17:471.16:517:14New Moon17Fri
18Sat1:284.42:264.48:180.38:310.96:527:12New Moon18Sat
19Sun2:104.32:504.48:410.69:130.86:537:11New Moon19Sun
20Mon2:524.13:064.58:590.89:520.76:537:09New Moon20Mon
21Tue3:344.03:164.69:171.110:290.76:547:07Waxing Crescent21Tue
22Wed4:203.83:314.89:401.311:060.76:557:06Waxing Crescent22Wed
23Thu5:113.63:575.010:121.511:440.76:567:04Waxing Crescent23Thu
24Fri6:103.54:325.110:501.86:577:03Waxing Crescent24Fri
25Sat7:193.45:145.012:320.711:36 AM2.16:587:01First Quarter25Sat
26Sun8:323.36:064.91:370.712:322.36:597:00First Quarter26Sun
27Mon9:393.47:084.72:530.61:402.36:596:58First Quarter27Mon
28Tue10:373.58:254.54:010.42:582.27:006:56First Quarter28Tue
29Wed11:243.79:494.54:570.24:141.97:016:55Waxing Gibbous29Wed
30Thu12:043.95:440.05:201.57:026:53Waxing Gibbous30Thu
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 5:59 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 63% 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 (63% 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