Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Antioch, CA.
Next low tide (tomorrow) : 7:57 am (-0.2 ft)
Next high tide : in 4h 42m at 11:23 pm (4.5 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Sep 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:522.98:144.02:590.51:591.36:387:36First Quarter1Mon
2Tue10:062.89:163.94:090.32:551.56:387:34First Quarter2Tue
3Wed11:152.810:253.95:170.24:021.76:397:33First Quarter3Wed
4Thu12:163.06:190.05:121.86:407:31Waxing Gibbous4Thu
5Fri1:083.17:12-0.26:151.76:417:30Waxing Gibbous5Fri
6Sat12:233.91:553.37:57-0.27:111.66:427:28Waxing Gibbous6Sat
7Sun1:093.92:363.38:37-0.28:011.56:437:26Waxing Gibbous7Sun
8Mon1:503.93:133.49:12-0.18:471.46:437:25Full Moon8Mon
9Tue2:273.83:473.49:430.09:301.36:447:23Full Moon9Tue
10Wed3:023.74:143.510:100.210:121.26:457:22Full Moon10Wed
11Thu3:373.64:343.610:350.310:521.16:467:20Full Moon11Thu
12Fri4:163.44:463.710:570.511:330.96:477:19Waning Gibbous12Fri
13Sat4:593.25:013.811:190.66:487:17Waning Gibbous13Sat
14Sun5:513.05:274.012:160.811:47 AM0.86:497:16Waning Gibbous14Sun
15Mon6:592.86:024.11:050.712:221.16:497:14Waning Gibbous15Mon
16Tue8:272.66:464.22:060.61:051.36:507:12Third Quarter16Tue
17Wed9:512.57:404.13:190.52:001.56:517:11Third Quarter17Wed
18Thu11:032.68:454.04:350.43:101.76:527:09Third Quarter18Thu
19Fri12:032.75:430.24:321.76:537:08Third Quarter19Fri
20Sat12:552.96:410.05:491.56:547:06Waning Crescent20Sat
21Sun1:393.17:31-0.26:561.36:557:05Waning Crescent21Sun
22Mon12:344.12:203.28:16-0.27:571.06:557:03Waning Crescent22Mon
23Tue1:354.12:573.48:56-0.18:550.76:567:01New Moon23Tue
24Wed2:314.03:323.69:340.09:510.56:577:00New Moon24Wed
25Thu3:273.84:043.710:100.310:460.36:586:58New Moon25Thu
26Fri4:243.54:353.910:450.511:410.16:596:57Waxing Crescent26Fri
27Sat5:243.25:053.911:190.87:006:55Waxing Crescent27Sat
28Sun6:283.05:374.012:370.011:56 AM1.07:016:54Waxing Crescent28Sun
29Mon7:362.86:133.91:350.012:371.37:016:52Waxing Crescent29Mon
30Tue8:442.76:583.82:360.01:261.57:026:51First Quarter30Tue
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 3:40 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 Antioch, CA?

Antioch, 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 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 (21% illuminated). This places Antioch, 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