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 5m at 6:34 pm (2.3 ft)
Next high tide (tomorrow) : 12:21 am (5.8 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - May 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:174.16:29-0.16:090.85:126:58Waxing Gibbous1Mon
2Tue12:185.11:124.17:21-0.26:491.15:116:59Full Moon2Tue
3Wed12:505.22:054.18:11-0.37:291.35:097:00Full Moon3Wed
4Thu1:215.22:584.18:58-0.38:101.65:087:01Full Moon4Thu
5Fri1:515.13:514.09:44-0.38:531.85:077:01Waning Gibbous5Fri
6Sat2:235.04:444.010:28-0.29:391.95:067:02Waning Gibbous6Sat
7Sun3:004.85:373.911:12-0.110:301.95:057:03Waning Gibbous7Sun
8Mon3:414.56:313.911:560.011:271.95:047:04Waning Gibbous8Mon
9Tue4:314.17:243.912:430.15:037:05Third Quarter9Tue
10Wed5:313.78:153.912:341.81:310.25:027:06Third Quarter10Wed
11Thu6:513.49:024.01:461.62:190.35:017:07Third Quarter11Thu
12Fri8:223.29:444.12:561.33:040.45:007:08Third Quarter12Fri
13Sat9:373.210:204.33:591.03:450.64:597:09Waning Crescent13Sat
14Sun10:413.310:504.54:550.74:230.84:587:10Waning Crescent14Sun
15Mon11:373.411:154.75:450.44:591.04:577:10Waning Crescent15Mon
16Tue12:293.56:320.15:361.34:567:11Waning Crescent16Tue
17Wed1:193.67:160.06:151.54:567:12New Moon17Wed
18Thu12:075.22:093.77:59-0.16:571.74:557:13New Moon18Thu
19Fri12:405.52:583.88:40-0.27:441.84:547:14New Moon19Fri
20Sat1:205.63:483.99:22-0.38:341.94:537:15New Moon20Sat
21Sun2:045.64:393.910:04-0.49:291.94:537:16Waxing Crescent21Sun
22Mon2:535.45:314.010:49-0.410:291.84:527:16Waxing Crescent22Mon
23Tue3:485.16:244.011:36-0.311:351.74:517:17Waxing Crescent23Tue
24Wed4:494.67:174.112:28-0.24:517:18First Quarter24Wed
25Thu6:034.28:104.312:501.51:220.04:507:19First Quarter25Thu
26Fri7:303.89:004.62:081.22:170.24:497:20First Quarter26Fri
27Sat8:543.69:474.83:210.83:090.44:497:20Waxing Gibbous27Sat
28Sun10:083.610:305.04:270.44:000.74:487:21Waxing Gibbous28Sun
29Mon11:133.711:095.25:270.04:471.04:487:22Waxing Gibbous29Mon
30Tue12:123.86:22-0.25:331.34:477:23Waxing Gibbous30Tue
31Wed1:073.97:13-0.36:171.64:477:23Full Moon31Wed
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 9:27 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 5% 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 (5% 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