Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 7h 44m at 7:39 am (-0.1 ft)
Next high tide : 1:50 pm (4.1 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Dec 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:384.32:175.38:471.810:16-0.47:054:49Waxing Crescent1Sun
2Mon4:314.33:045.09:431.811:01-0.37:064:48Waxing Crescent2Mon
3Tue5:234.33:564.610:401.811:46-0.27:074:48Waxing Crescent3Tue
4Wed6:154.24:564.111:421.77:084:48First Quarter4Wed
5Thu7:064.26:093.712:310.012:491.57:094:48First Quarter5Thu
6Fri7:554.27:313.31:170.21:591.37:104:48First Quarter6Fri
7Sat8:424.38:493.22:040.43:081.07:114:48First Quarter7Sat
8Sun9:254.49:573.22:500.64:100.67:124:48Waxing Gibbous8Sun
9Mon10:044.510:583.33:340.95:050.37:124:48Waxing Gibbous9Mon
10Tue10:384.711:523.54:171.25:550.17:134:48Waxing Gibbous10Tue
11Wed11:064.84:571.46:410.07:144:48Waxing Gibbous11Wed
12Thu12:433.611:31 AM5.05:381.77:23-0.17:154:49Waxing Gibbous12Thu
13Fri1:303.711:58 AM5.16:181.98:02-0.17:154:49Full Moon13Fri
14Sat2:163.812:305.27:002.08:38-0.17:164:49Full Moon14Sat
15Sun2:593.91:085.37:442.09:10-0.27:174:49Full Moon15Sun
16Mon3:403.91:505.38:302.09:41-0.27:184:50Waning Gibbous16Mon
17Tue4:194.02:365.19:181.810:11-0.27:184:50Waning Gibbous17Tue
18Wed4:584.03:264.910:091.710:45-0.27:194:50Waning Gibbous18Wed
19Thu5:384.04:224.511:061.611:25-0.17:194:51Waning Gibbous19Thu
20Fri6:204.15:274.112:111.47:204:51Third Quarter20Fri
21Sat7:064.36:463.712:120.11:261.27:204:52Third Quarter21Sat
22Sun7:544.58:163.51:040.42:430.97:214:52Third Quarter22Sun
23Mon8:434.89:383.52:000.73:550.57:214:53Waning Crescent23Mon
24Tue9:325.110:493.73:001.04:590.17:224:53Waning Crescent24Tue
25Wed10:205.311:523.93:591.35:57-0.17:224:54Waning Crescent25Wed
26Thu11:065.54:571.56:51-0.37:234:54Waning Crescent26Thu
27Fri12:494.111:51 AM5.65:531.77:41-0.47:234:55New Moon27Fri
28Sat1:424.312:355.56:491.88:27-0.57:234:56New Moon28Sat
29Sun2:324.41:195.47:431.99:10-0.47:234:57New Moon29Sun
30Mon3:194.42:035.28:361.89:50-0.37:244:57Waxing Crescent30Mon
31Tue4:054.42:494.99:281.77:244:58Waxing Crescent31Tue
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 10:44 am — 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 12% 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 Crescent (12% 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