Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 6h 43m at 9:59 am (-0.1 ft)
Next high tide : 4:21 pm (4.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jun 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:065.65:404.111:13-0.410:302.05:468:25Waning Gibbous1Thu
2Fri3:565.56:344.112:00-0.45:468:25Waning Gibbous2Fri
3Sat4:525.17:284.212:50-0.35:468:26Waning Gibbous3Sat
4Sun5:564.78:224.312:401.81:42-0.25:458:26Third Quarter4Sun
5Mon7:144.29:154.51:571.62:36-0.15:458:27Third Quarter5Mon
6Tue8:433.810:054.73:151.33:300.15:458:28Third Quarter6Tue
7Wed10:063.710:524.94:290.94:220.45:458:28Waning Crescent7Wed
8Thu11:183.711:355.15:340.55:110.65:458:29Waning Crescent8Thu
9Fri12:223.76:340.25:581.05:448:29Waning Crescent9Fri
10Sat12:145.31:203.87:28-0.16:421.35:448:30Waning Crescent10Sat
11Sun12:495.32:143.98:18-0.27:261.65:448:30New Moon11Sun
12Mon1:205.33:064.09:04-0.28:091.95:448:31New Moon12Mon
13Tue1:505.33:564.19:47-0.28:532.15:448:31New Moon13Tue
14Wed2:205.34:444.110:26-0.29:372.25:448:32New Moon14Wed
15Thu2:535.25:304.111:02-0.110:222.25:448:32Waxing Crescent15Thu
16Fri3:305.06:144.111:33-0.111:092.25:448:32Waxing Crescent16Fri
17Sat4:114.76:574.112:020.05:448:33Waxing Crescent17Sat
18Sun4:584.47:394.112:002.112:300.05:448:33Waxing Crescent18Sun
19Mon5:514.08:204.112:561.91:030.15:458:33First Quarter19Mon
20Tue6:543.78:594.22:001.71:420.35:458:34First Quarter20Tue
21Wed8:133.49:364.33:091.52:260.55:458:34First Quarter21Wed
22Thu9:393.210:094.54:161.23:130.85:458:34First Quarter22Thu
23Fri10:553.310:414.85:180.94:021.15:458:34Waxing Gibbous23Fri
24Sat12:023.46:140.64:511.45:468:34Waxing Gibbous24Sat
25Sun1:023.67:060.35:421.75:468:34Waxing Gibbous25Sun
26Mon1:573.87:550.06:341.95:468:34Waxing Gibbous26Mon
27Tue12:335.72:504.08:43-0.17:292.15:478:34Full Moon27Tue
28Wed1:185.93:414.29:29-0.38:262.15:478:35Full Moon28Wed
29Thu2:065.94:304.310:13-0.49:252.15:488:35Full Moon29Thu
30Fri2:575.85:194.410:57-0.410:252.05:488:34Waning Gibbous30Fri
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 1:10 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 99% 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 Full Moon (99% 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