Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 5h 55m at 6:47 am (0.2 ft)
Next high tide : 12:59 pm (3.9 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 - Sep 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:473.77:084.51:471.01:031.46:377:38Third Quarter1Tue
2Wed8:593.67:594.52:540.91:571.76:387:37Third Quarter2Wed
3Thu10:073.68:584.54:010.73:001.96:397:35Third Quarter3Thu
4Fri11:093.89:594.55:020.64:061.96:407:34Waning Crescent4Fri
5Sat12:024.05:540.45:081.96:417:32Waning Crescent5Sat
6Sun12:494.16:400.36:031.86:417:31Waning Crescent6Sun
7Mon1:304.27:190.36:521.76:427:29Waning Crescent7Mon
8Tue12:314.82:064.37:540.37:381.56:437:28New Moon8Tue
9Wed1:134.82:374.38:240.38:211.36:447:26New Moon9Wed
10Thu1:554.83:024.48:510.49:031.26:457:25New Moon10Thu
11Fri2:374.83:234.59:160.59:441.06:467:23New Moon11Fri
12Sat3:224.73:454.79:430.510:260.86:477:21Waxing Crescent12Sat
13Sun4:114.54:124.910:160.711:120.76:477:20Waxing Crescent13Sun
14Mon5:054.24:485.010:540.96:487:18Waxing Crescent14Mon
15Tue6:084.05:315.112:050.711:39 AM1.16:497:17Waxing Crescent15Tue
16Wed7:223.86:235.01:110.712:321.46:507:15First Quarter16Wed
17Thu8:423.77:264.92:280.61:351.66:517:14First Quarter17Thu
18Fri9:563.88:424.83:450.52:511.86:527:12First Quarter18Fri
19Sat11:004.010:044.84:520.34:101.76:537:10Waxing Gibbous19Sat
20Sun11:564.211:164.95:500.15:221.66:537:09Waxing Gibbous20Sun
21Mon12:444.56:410.06:251.36:547:07Waxing Gibbous21Mon
22Tue12:174.91:284.67:260.07:221.16:557:06Waxing Gibbous22Tue
23Wed1:114.92:084.78:080.18:150.96:567:04Full Moon23Wed
24Thu2:024.82:454.88:450.39:050.76:577:03Full Moon24Thu
25Fri2:524.73:184.89:200.59:530.66:587:01Full Moon25Fri
26Sat3:414.53:474.89:530.810:390.66:597:00Waning Gibbous26Sat
27Sun4:324.24:144.710:251.011:260.66:596:58Waning Gibbous27Sun
28Mon5:264.04:424.710:591.27:006:56Waning Gibbous28Mon
29Tue6:253.85:144.612:140.611:37 AM1.57:016:55Waning Gibbous29Tue
30Wed7:293.75:544.41:070.612:241.77:026:53Third Quarter30Wed
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 9:53 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