Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Friday, August 14, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 6h 05m at 10:18 am (0.0 ft)
Next high tide : 4:32 pm (4.6 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waxing Crescent (6% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Dec 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:334.210:183.12:410.74:330.57:054:49Waning Crescent1Sat
2Sun9:574.511:223.23:221.05:260.27:064:48Waning Crescent2Sun
3Mon10:224.94:031.46:160.07:074:48Waning Crescent3Mon
4Tue12:203.410:51 AM5.34:461.87:04-0.27:084:48Waning Crescent4Tue
5Wed1:153.611:28 AM5.65:332.17:51-0.37:094:48New Moon5Wed
6Thu2:083.712:105.76:232.38:37-0.47:094:48New Moon6Thu
7Fri2:593.812:575.87:182.39:23-0.57:104:48New Moon7Fri
8Sat3:483.91:485.78:162.310:07-0.57:114:48Waxing Crescent8Sat
9Sun4:363.92:425.49:162.110:51-0.57:124:48Waxing Crescent9Sun
10Mon5:244.03:415.010:201.911:36-0.47:134:48Waxing Crescent10Mon
11Tue6:114.04:484.511:281.67:144:48First Quarter11Tue
12Wed6:584.26:073.912:21-0.312:431.37:144:48First Quarter12Wed
13Thu7:464.47:363.51:080.02:011.07:154:49First Quarter13Thu
14Fri8:324.69:003.31:560.33:160.67:164:49First Quarter14Fri
15Sat9:174.810:163.32:450.74:250.27:174:49Waxing Gibbous15Sat
16Sun9:595.111:223.53:341.15:26-0.17:174:49Waxing Gibbous16Sun
17Mon10:385.24:231.56:20-0.37:184:50Waxing Gibbous17Mon
18Tue12:223.711:15 AM5.35:121.97:11-0.47:184:50Waxing Gibbous18Tue
19Wed1:163.911:49 AM5.46:022.27:57-0.47:194:51Full Moon19Wed
20Thu2:074.012:245.36:512.38:39-0.37:204:51Full Moon20Thu
21Fri2:544.112:595.27:392.49:17-0.37:204:51Full Moon21Fri
22Sat3:384.11:375.18:252.39:50-0.27:214:52Full Moon22Sat
23Sun4:194.12:174.99:112.210:18-0.27:214:52Waning Gibbous23Sun
24Mon4:574.03:014.69:562.010:41-0.27:224:53Waning Gibbous24Mon
25Tue5:323.93:484.210:441.811:03-0.17:224:54Waning Gibbous25Tue
26Wed6:053.94:403.811:361.611:300.17:224:54Waning Gibbous26Wed
27Thu6:353.95:433.412:361.47:234:55Third Quarter27Thu
28Fri7:024.17:033.012:040.31:441.27:234:55Third Quarter28Fri
29Sat7:314.38:362.912:440.72:570.97:234:56Third Quarter29Sat
30Sun8:044.610:003.01:301.14:040.67:244:57Third Quarter30Sun
31Mon8:424.911:133.22:201.65:080.37:244:58Waning Crescent31Mon
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 1:25 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 6% 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 Waxing Crescent (6% 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