Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 3:09 am (1.0 ft)
Next high tide : in 5h 51m at 7:10 pm (5.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Dec 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:033.92:595.59:342.211:15-0.47:054:49Waning Gibbous1Mon
2Tue5:593.93:585.110:402.17:064:48Waning Gibbous2Tue
3Wed6:553.95:064.612:09-0.311:54 AM2.07:074:48Third Quarter3Wed
4Thu7:484.16:294.11:04-0.21:131.77:074:48Third Quarter4Thu
5Fri8:394.27:593.81:58-0.12:311.27:084:48Third Quarter5Fri
6Sat9:264.59:203.62:490.13:420.87:094:48Waning Crescent6Sat
7Sun10:094.710:293.53:370.34:460.37:104:48Waning Crescent7Sun
8Mon10:474.911:323.64:200.75:44-0.17:114:48Waning Crescent8Mon
9Tue11:225.05:011.06:36-0.37:124:48Waning Crescent9Tue
10Wed12:293.711:51 AM5.15:401.47:25-0.47:134:48New Moon10Wed
11Thu1:233.812:175.26:191.88:11-0.47:134:48New Moon11Thu
12Fri2:153.912:425.27:002.18:54-0.37:144:48New Moon12Fri
13Sat3:054.01:095.27:422.49:33-0.37:154:49New Moon13Sat
14Sun3:534.01:425.18:262.410:10-0.27:164:49Waxing Crescent14Sun
15Mon4:394.02:215.09:122.410:43-0.17:164:49Waxing Crescent15Mon
16Tue5:233.93:044.710:002.311:15-0.17:174:49Waxing Crescent16Tue
17Wed6:063.93:534.410:512.211:46-0.17:184:50Waxing Crescent17Wed
18Thu6:473.84:484.011:482.07:184:50First Quarter18Thu
19Fri7:273.85:533.612:200.012:521.77:194:50First Quarter19Fri
20Sat8:033.97:153.212:590.12:031.47:204:51First Quarter20Sat
21Sun8:364.18:453.11:410.33:121.17:204:51First Quarter21Sun
22Mon9:064.410:053.12:260.74:160.77:214:52Waxing Gibbous22Mon
23Tue9:364.811:143.33:111.05:140.47:214:52Waxing Gibbous23Tue
24Wed10:095.23:581.46:070.17:214:53Waxing Gibbous24Wed
25Thu12:173.510:48 AM5.54:471.86:58-0.17:224:53Waxing Gibbous25Thu
26Fri1:143.711:30 AM5.85:382.17:48-0.37:224:54Full Moon26Fri
27Sat2:093.912:176.06:342.38:37-0.47:234:55Full Moon27Sat
28Sun3:014.01:076.07:322.39:23-0.57:234:55Full Moon28Sun
29Mon3:514.12:015.88:322.210:09-0.57:234:56Waning Gibbous29Mon
30Tue4:404.12:575.59:332.010:54-0.57:234:57Waning Gibbous30Tue
31Wed5:284.23:585.010:371.811:37-0.47:244:57Waning Gibbous31Wed
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 11:09 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 neap phase. Tonight's moon is 53% 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 minimum.

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 Third Quarter (53% illuminated). This places Port Chicago, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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