Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Antioch, CA.
Next low tide : 6:42 pm (1.7 ft)
Next high tide : in 5h 45m at 2:00 pm (2.8 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Nov 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:032.53:394.112:31-0.210:17 AM1.56:335:07Waning Gibbous1Sun
2Mon7:002.54:254.012:16-0.211:07 AM1.56:345:06Waning Gibbous2Mon
3Tue7:572.55:183.91:05-0.212:061.66:355:05Waning Gibbous3Tue
4Wed8:512.76:203.71:58-0.21:151.66:365:04Third Quarter4Wed
5Thu9:402.87:353.52:53-0.22:311.56:375:03Third Quarter5Thu
6Fri10:253.09:043.33:46-0.13:481.26:385:02Third Quarter6Fri
7Sat11:043.210:273.24:34-0.14:580.96:395:01Waning Crescent7Sat
8Sun11:383.511:373.15:190.16:020.46:415:00Waning Crescent8Sun
9Mon12:103.76:000.37:010.06:425:00Waning Crescent9Mon
10Tue12:413.012:394.06:390.57:58-0.36:434:59Waning Crescent10Tue
11Wed1:422.91:094.17:180.88:53-0.66:444:58New Moon11Wed
12Thu2:442.71:414.27:591.09:47-0.86:454:57New Moon12Thu
13Fri3:452.72:174.38:431.210:39-0.96:464:56New Moon13Fri
14Sat4:462.72:574.29:321.411:31-0.96:474:55Waxing Crescent14Sat
15Sun5:452.73:424.010:251.56:484:55Waxing Crescent15Sun
16Mon6:432.84:313.812:22-0.811:22 AM1.66:494:54Waxing Crescent16Mon
17Tue7:382.95:273.51:12-0.712:251.66:504:53First Quarter17Tue
18Wed8:313.06:403.22:03-0.51:331.66:514:53First Quarter18Wed
19Thu9:213.28:143.02:52-0.42:451.56:524:52First Quarter19Thu
20Fri10:073.49:352.83:38-0.23:571.36:534:52First Quarter20Fri
21Sat10:493.510:422.74:220.05:041.06:544:51Waxing Gibbous21Sat
22Sun11:263.711:422.65:010.36:030.66:554:50Waxing Gibbous22Sun
23Mon11:583.85:360.56:570.36:564:50Waxing Gibbous23Mon
24Tue12:382.512:233.96:090.87:450.06:574:50Waxing Gibbous24Tue
25Wed1:332.412:423.96:401.08:31-0.26:584:49Waxing Gibbous25Wed
26Thu2:272.412:584.07:121.29:14-0.37:004:49Full Moon26Thu
27Fri3:202.41:214.17:481.49:56-0.47:014:48Full Moon27Fri
28Sat4:132.41:554.28:291.510:36-0.57:014:48Full Moon28Sat
29Sun5:042.52:354.29:151.611:16-0.57:024:48Waning Gibbous29Sun
30Mon5:532.63:204.210:061.611:56-0.57:034:48Waning Gibbous30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415064)

Common Questions About Antioch, CA Tides

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What time does the tide turn (slack tide) in Antioch, CA today?

Slack tide in Antioch, CA is approximately 4:21 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 Antioch, CA?

Antioch, 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 Antioch, 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 Antioch, CA?

Tide predictions for Antioch, 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 Antioch, CA?

Tide data for Antioch, CA is sourced from NOAA Station #9415064. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415064.

What is the moon phase in Antioch, CA tonight?

Tonight the moon over Antioch, CA is Waning Crescent (12% illuminated). This places Antioch, 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