Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Antioch, CA.
Next low tide : 7:57 am (-0.2 ft)
Next high tide (tomorrow) : in 1h 38m 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 - Dec 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:053.49:292.73:240.04:011.37:054:47First Quarter1Mon
2Tue10:413.610:422.64:030.25:060.97:064:47First Quarter2Tue
3Wed11:113.711:452.54:400.46:040.67:064:47Waxing Gibbous3Wed
4Thu11:363.95:150.76:570.27:074:47Waxing Gibbous4Thu
5Fri12:452.511:55 AM4.05:500.97:47-0.17:084:47Waxing Gibbous5Fri
6Sat1:432.512:184.26:271.28:34-0.37:094:47Full Moon6Sat
7Sun2:402.512:504.47:071.39:21-0.57:104:47Full Moon7Sun
8Mon3:352.51:284.57:531.510:06-0.67:114:47Full Moon8Mon
9Tue4:292.52:134.68:441.510:52-0.77:124:47Full Moon9Tue
10Wed5:202.63:024.59:401.611:36-0.77:124:47Waning Gibbous10Wed
11Thu6:092.73:554.410:401.57:134:47Waning Gibbous11Thu
12Fri6:582.84:524.112:21-0.611:45 AM1.57:144:48Waning Gibbous12Fri
13Sat7:463.05:573.71:06-0.412:551.47:154:48Third Quarter13Sat
14Sun8:343.37:173.31:52-0.32:111.37:154:48Third Quarter14Sun
15Mon9:223.68:502.92:380.03:281.07:164:48Third Quarter15Mon
16Tue10:083.810:142.73:260.24:430.77:174:49Third Quarter16Tue
17Wed10:514.111:262.64:130.55:510.27:174:49Waning Crescent17Wed
18Thu11:314.25:010.86:51-0.17:184:50Waning Crescent18Thu
19Fri12:312.612:074.35:481.07:46-0.47:184:50Waning Crescent19Fri
20Sat1:322.612:404.36:351.38:36-0.67:194:50New Moon20Sat
21Sun2:312.71:104.27:221.59:23-0.77:194:51New Moon21Sun
22Mon3:262.71:394.18:091.710:06-0.77:204:51New Moon22Mon
23Tue4:172.82:114.18:551.810:47-0.77:204:52New Moon23Tue
24Wed5:042.92:474.09:411.911:25-0.67:214:53Waxing Crescent24Wed
25Thu5:493.03:274.010:271.97:214:53Waxing Crescent25Thu
26Fri6:303.14:103.812:00-0.511:15 AM1.97:214:54Waxing Crescent26Fri
27Sat7:103.24:583.612:33-0.312:071.87:224:54Waxing Crescent27Sat
28Sun7:493.35:533.31:04-0.11:061.77:224:55First Quarter28Sun
29Mon8:273.47:042.91:360.12:141.67:224:56First Quarter29Mon
30Tue9:023.68:472.62:090.33:271.37:224:57First Quarter30Tue
31Wed9:333.810:232.42:450.64:431.07:234:57First Quarter31Wed
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