Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 10:52 pm (1.5 ft)
Next high tide : in 2h 54m at 5:04 pm (4.3 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Feb 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:224.75:463.812:060.87:135:30Third Quarter1Wed
2Thu6:034.77:003.51:130.77:125:31Third Quarter2Thu
3Fri6:494.68:173.412:161.22:240.67:115:32Third Quarter3Fri
4Sat7:414.69:293.41:101.63:330.47:105:33Third Quarter4Sat
5Sun8:394.610:333.62:141.94:340.27:095:34Waning Crescent5Sun
6Mon9:354.611:283.93:232.05:270.07:085:35Waning Crescent6Mon
7Tue10:274.74:262.16:12-0.17:075:37Waning Crescent7Tue
8Wed12:164.011:12 AM4.75:212.06:52-0.17:065:38Waning Crescent8Wed
9Thu12:584.211:52 AM4.76:101.97:27-0.17:055:39Waning Crescent9Thu
10Fri1:354.212:294.76:551.77:570.07:045:40New Moon10Fri
11Sat2:074.21:064.77:361.68:220.17:035:41New Moon11Sat
12Sun2:334.31:444.68:151.48:420.27:025:42New Moon12Sun
13Mon2:544.32:244.48:531.29:020.37:015:43New Moon13Mon
14Tue3:124.53:074.29:301.09:280.47:005:44Waxing Crescent14Tue
15Wed3:334.73:564.010:110.910:000.66:585:45Waxing Crescent15Wed
16Thu4:034.94:553.610:570.810:390.96:575:47Waxing Crescent16Thu
17Fri4:415.06:133.311:570.811:261.36:565:48First Quarter17Fri
18Sat5:275.17:473.21:210.86:555:49First Quarter18Sat
19Sun6:225.19:113.312:231.62:510.66:545:50First Quarter19Sun
20Mon7:295.110:203.61:341.94:050.46:525:51First Quarter20Mon
21Tue8:455.111:173.92:552.05:050.16:515:52Waxing Gibbous21Tue
22Wed10:005.24:131.95:57-0.16:505:53Waxing Gibbous22Wed
23Thu12:064.111:06 AM5.25:211.66:42-0.26:485:54Waxing Gibbous23Thu
24Fri12:504.412:045.36:211.37:23-0.26:475:55Full Moon24Fri
25Sat1:304.612:585.27:171.08:00-0.16:465:56Full Moon25Sat
26Sun2:074.71:495.08:100.88:350.16:445:57Full Moon26Sun
27Mon2:424.82:414.79:010.69:070.36:435:58Waning Gibbous27Mon
28Tue3:154.93:344.49:510.59:380.66:425:59Waning Gibbous28Tue
29Wed3:464.94:304.110:430.410:110.96:406:00Waning Gibbous29Wed
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 7:58 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 90% 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 (90% 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