Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 12:03 am (1.7 ft)
Next high tide : in 4h 32m at 6:35 pm (4.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Nov 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:353.95:513.81:030.112:421.96:345:08First Quarter1Sun
2Mon8:263.97:183.51:550.21:551.66:355:07First Quarter2Mon
3Tue9:134.08:413.32:430.23:041.36:365:06First Quarter3Tue
4Wed9:554.19:503.33:260.34:050.96:375:05Waxing Gibbous4Wed
5Thu10:304.310:493.34:050.54:590.66:385:04Waxing Gibbous5Thu
6Fri10:594.411:433.44:390.75:480.36:395:03Waxing Gibbous6Fri
7Sat11:224.65:101.06:340.16:415:02Waxing Gibbous7Sat
8Sun12:343.511:42 AM4.85:411.37:170.06:425:01Full Moon8Sun
9Mon1:233.612:045.16:151.67:59-0.16:435:00Full Moon9Mon
10Tue2:123.712:335.36:531.98:39-0.16:445:00Full Moon10Tue
11Wed3:013.71:105.57:352.09:19-0.16:454:59Full Moon11Wed
12Thu3:513.71:525.58:232.19:59-0.26:464:58Waning Gibbous12Thu
13Fri4:413.72:405.49:152.110:42-0.26:474:57Waning Gibbous13Fri
14Sat5:323.73:335.110:122.011:30-0.26:484:56Waning Gibbous14Sat
15Sun6:243.74:334.711:161.86:494:56Third Quarter15Sun
16Mon7:153.85:444.212:21-0.112:301.66:504:55Third Quarter16Mon
17Tue8:054.07:093.91:150.01:481.36:514:54Third Quarter17Tue
18Wed8:534.28:373.72:090.13:040.96:524:54Third Quarter18Wed
19Thu9:374.59:553.63:000.34:120.46:534:53Waning Crescent19Thu
20Fri10:184.811:023.73:490.65:140.06:544:52Waning Crescent20Fri
21Sat10:565.14:350.96:10-0.36:564:52Waning Crescent21Sat
22Sun12:043.811:32 AM5.35:201.37:03-0.46:574:51New Moon22Sun
23Mon1:013.912:065.46:061.67:54-0.56:584:51New Moon23Mon
24Tue1:554.012:405.46:521.98:42-0.56:594:50New Moon24Tue
25Wed2:484.11:165.37:412.19:27-0.47:004:50New Moon25Wed
26Thu3:394.11:545.28:302.110:09-0.37:014:50Waxing Crescent26Thu
27Fri4:294.12:354.99:212.110:49-0.27:024:49Waxing Crescent27Fri
28Sat5:174.03:204.610:132.011:28-0.17:034:49Waxing Crescent28Sat
29Sun6:034.04:114.111:091.97:044:49Waxing Crescent29Sun
30Mon6:493.95:123.712:050.012:111.77:054:49First Quarter30Mon
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 9:19 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 80% 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 Gibbous (80% 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