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 7h 58m at 6:47 am (0.2 ft)
Next high tide : 12:59 pm (3.9 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Nov 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:543.88:153.73:010.33:111.77:336:09Third Quarter1Sun
2Mon10:413.99:373.63:530.34:171.47:346:08Third Quarter2Mon
3Tue11:214.110:483.74:390.35:161.17:356:07Waning Crescent3Tue
4Wed11:544.211:493.85:200.46:090.77:366:06Waning Crescent4Wed
5Thu12:234.45:570.56:580.47:386:05Waning Crescent5Thu
6Fri12:443.912:484.76:330.77:450.27:396:04Waning Crescent6Fri
7Sat1:364.01:145.07:110.98:320.07:406:03New Moon7Sat
8Sun2:284.11:445.27:511.19:19-0.27:416:02New Moon8Sun
9Mon3:224.12:215.48:351.310:08-0.37:426:01New Moon9Mon
10Tue4:174.13:035.59:231.510:58-0.37:436:00Waxing Crescent10Tue
11Wed5:154.13:495.410:161.611:51-0.37:446:00Waxing Crescent11Wed
12Thu6:154.04:425.111:141.77:455:59Waxing Crescent12Thu
13Fri7:164.05:434.712:47-0.212:211.77:465:58First Quarter13Fri
14Sat8:174.16:584.31:47-0.11:361.67:475:57First Quarter14Sat
15Sun9:164.28:294.02:47-0.12:561.47:485:56First Quarter15Sun
16Mon10:104.49:543.83:450.04:111.17:495:56First Quarter16Mon
17Tue11:004.611:053.84:390.15:180.77:505:55Waxing Gibbous17Tue
18Wed11:444.85:270.36:170.37:525:54Waxing Gibbous18Wed
19Thu12:073.812:234.96:110.57:100.07:535:54Waxing Gibbous19Thu
20Fri1:023.912:585.06:510.88:00-0.17:545:53Waxing Gibbous20Fri
21Sat1:533.91:285.07:291.18:46-0.27:555:52Full Moon21Sat
22Sun2:433.91:535.08:051.49:29-0.17:565:52Full Moon22Sun
23Mon3:323.92:165.08:411.710:08-0.17:575:51Full Moon23Mon
24Tue4:193.92:414.99:181.910:450.07:585:51Full Moon24Tue
25Wed5:073.93:134.99:572.011:180.07:595:51Waning Gibbous25Wed
26Thu5:543.93:514.710:412.011:490.08:005:50Waning Gibbous26Thu
27Fri6:413.84:344.511:292.08:015:50Waning Gibbous27Fri
28Sat7:293.85:244.212:210.012:231.98:025:49Waning Gibbous28Sat
29Sun8:163.86:223.912:570.11:251.88:035:49Third Quarter29Sun
30Mon9:013.87:333.61:410.12:341.68:045:49Third Quarter30Mon
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 transitional phase. Tonight's moon is 21% 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 shifting between spring and neap.

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 (21% illuminated). This places Port Chicago, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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