Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 3h 13m at 11:47 am (-0.2 ft)
Next high tide : 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 - Apr 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:064.310:293.82:401.73:580.15:526:31First Quarter1Thu
2Fri9:294.311:104.13:541.44:470.15:516:32Waxing Gibbous2Fri
3Sat10:404.411:464.44:580.95:300.15:496:33Waxing Gibbous3Sat
4Sun12:424.56:560.57:100.26:487:34Waxing Gibbous4Sun
5Mon1:204.71:404.57:510.17:480.56:467:34Full Moon5Mon
6Tue1:535.02:364.48:45-0.18:270.76:457:35Full Moon6Tue
7Wed2:265.23:334.39:38-0.39:071.06:437:36Full Moon7Wed
8Thu3:005.44:314.210:30-0.39:501.36:427:37Waning Gibbous8Thu
9Fri3:375.35:314.011:24-0.310:371.56:407:38Waning Gibbous9Fri
10Sat4:175.26:343.912:19-0.26:397:39Waning Gibbous10Sat
11Sun5:024.97:383.81:18-0.16:377:40Waning Gibbous11Sun
12Mon5:564.58:423.812:311.92:200.06:367:41Third Quarter12Mon
13Tue7:074.19:423.91:441.93:200.16:347:42Third Quarter13Tue
14Wed8:373.710:364.03:031.84:160.16:337:43Third Quarter14Wed
15Thu10:003.611:224.24:161.55:050.16:317:44Third Quarter15Thu
16Fri11:073.65:191.15:480.26:307:45Waning Crescent16Fri
17Sat12:034.312:033.66:140.76:240.46:297:46Waning Crescent17Sat
18Sun12:384.412:533.67:030.46:560.66:277:47Waning Crescent18Sun
19Mon1:074.51:393.67:480.27:230.96:267:47Waning Crescent19Mon
20Tue1:294.62:253.68:300.17:491.26:257:48New Moon20Tue
21Wed1:454.73:103.69:090.18:161.46:237:49New Moon21Wed
22Thu2:024.93:553.69:460.08:481.66:227:50New Moon22Thu
23Fri2:275.14:423.610:200.09:261.76:217:51New Moon23Fri
24Sat2:595.25:313.610:530.010:081.86:197:52Waxing Crescent24Sat
25Sun3:395.26:243.511:29-0.110:571.96:187:53Waxing Crescent25Sun
26Mon4:245.17:193.512:12-0.16:177:54Waxing Crescent26Mon
27Tue5:164.98:163.51:040.06:167:55First Quarter27Tue
28Wed6:164.59:103.612:581.82:050.06:147:56First Quarter28Wed
29Thu7:294.210:003.92:151.73:060.06:137:57First Quarter29Thu
30Fri8:553.910:444.13:341.34:020.16:127:58First Quarter30Fri
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 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