Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 12:15 am (1.0 ft)
Next high tide : in 1h 21m at 5:36 pm (4.7 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - May 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:155.65:043.610:17-0.29:242.15:126:58Waxing Crescent1Thu
2Fri2:595.66:103.611:12-0.210:212.35:106:59Waxing Crescent2Fri
3Sat3:505.37:143.612:15-0.15:097:00Waxing Crescent3Sat
4Sun4:504.98:143.71:22-0.15:087:01First Quarter4Sun
5Mon6:054.59:083.912:552.22:26-0.25:077:02First Quarter5Mon
6Tue7:374.19:554.12:211.83:21-0.25:067:03First Quarter6Tue
7Wed9:063.910:374.43:371.34:09-0.15:057:03Waxing Gibbous7Wed
8Thu10:203.911:154.64:420.74:520.15:047:04Waxing Gibbous8Thu
9Fri11:233.811:494.95:400.35:300.45:037:05Waxing Gibbous9Fri
10Sat12:203.86:34-0.16:050.75:027:06Waxing Gibbous10Sat
11Sun12:185.01:163.87:25-0.36:391.25:017:07Full Moon11Sun
12Mon12:445.22:103.88:13-0.47:131.65:007:08Full Moon12Mon
13Tue1:085.23:053.89:00-0.47:501.94:597:09Full Moon13Tue
14Wed1:335.34:003.89:45-0.38:322.24:587:10Waning Gibbous14Wed
15Thu2:025.24:563.810:29-0.29:182.44:577:11Waning Gibbous15Thu
16Fri2:375.15:513.811:12-0.110:102.54:567:11Waning Gibbous16Fri
17Sat3:184.86:453.811:57-0.111:092.44:567:12Waning Gibbous17Sat
18Sun4:074.47:363.812:430.04:557:13Third Quarter18Sun
19Mon5:054.08:253.812:172.31:300.04:547:14Third Quarter19Mon
20Tue6:173.69:083.91:312.02:160.14:537:15Third Quarter20Tue
21Wed7:483.39:464.02:441.72:570.24:527:16Third Quarter21Wed
22Thu9:123.110:174.23:481.33:340.34:527:17Waning Crescent22Thu
23Fri10:223.210:414.54:450.84:080.64:517:17Waning Crescent23Fri
24Sat11:243.211:024.85:360.54:411.04:507:18Waning Crescent24Sat
25Sun12:223.36:250.25:161.34:507:19Waning Crescent25Sun
26Mon1:193.57:110.05:541.74:497:20New Moon26Mon
27Tue2:153.67:57-0.26:382.14:497:21New Moon27Tue
28Wed12:275.83:123.78:43-0.37:272.34:487:21New Moon28Wed
29Thu1:095.94:083.89:30-0.48:222.44:487:22New Moon29Thu
30Fri1:555.95:033.910:19-0.49:212.44:477:23Waxing Crescent30Fri
31Sat2:475.75:573.911:08-0.410:272.34:477:23Waxing Crescent31Sat
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 8:55 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 19% 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 (19% 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