Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Antioch, CA.
Next low tide (tomorrow) : 5:23 am (0.6 ft)
Next high tide : in 3h 13m at 10:08 pm (4.0 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:01 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Oct 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:452.95:343.912:440.512:100.97:046:49Waning Gibbous1Sat
2Sun7:512.86:183.91:320.412:551.17:046:47Waning Gibbous2Sun
3Mon9:012.77:093.82:280.41:491.27:056:46Third Quarter3Mon
4Tue10:072.88:103.73:330.32:551.37:066:44Third Quarter4Tue
5Wed11:062.99:253.74:380.24:091.37:076:43Third Quarter5Wed
6Thu11:593.010:473.75:380.15:211.27:086:41Third Quarter6Thu
7Fri12:463.26:320.06:270.97:096:40Waning Crescent7Fri
8Sat12:003.71:283.47:200.07:280.67:106:38Waning Crescent8Sat
9Sun1:033.72:063.58:050.08:250.47:116:37Waning Crescent9Sun
10Mon2:023.72:433.78:480.19:200.17:126:35New Moon10Mon
11Tue2:583.63:193.89:290.310:15-0.17:136:34New Moon11Tue
12Wed3:563.43:543.910:100.511:09-0.27:146:32New Moon12Wed
13Thu4:543.34:293.910:520.67:156:31Waxing Crescent13Thu
14Fri5:543.15:073.912:03-0.311:36 AM0.87:166:29Waxing Crescent14Fri
15Sat6:563.05:493.812:57-0.312:231.07:176:28Waxing Crescent15Sat
16Sun7:593.06:393.61:52-0.31:151.17:176:27Waxing Crescent16Sun
17Mon9:013.07:443.42:49-0.22:151.37:186:25First Quarter17Mon
18Tue10:013.19:083.23:47-0.23:201.37:196:24First Quarter18Tue
19Wed10:573.210:263.24:44-0.14:291.37:206:23First Quarter19Wed
20Thu11:483.311:303.15:37-0.15:341.17:216:21First Quarter20Thu
21Fri12:343.56:25-0.16:330.97:226:20Waxing Gibbous21Fri
22Sat12:263.11:153.67:080.07:260.77:236:19Waxing Gibbous22Sat
23Sun1:153.11:523.67:460.28:150.57:246:17Waxing Gibbous23Sun
24Mon2:023.02:243.78:210.39:010.37:256:16Waxing Gibbous24Mon
25Tue2:473.02:493.78:530.59:450.27:266:15Full Moon25Tue
26Wed3:332.93:063.79:240.610:270.17:276:14Full Moon26Wed
27Thu4:192.83:213.89:550.811:070.07:296:12Full Moon27Thu
28Fri5:062.83:463.910:280.911:48-0.17:306:11Full Moon28Fri
29Sat5:572.74:214.011:051.07:316:10Waning Gibbous29Sat
30Sun6:502.75:024.012:30-0.111:48 AM1.17:326:09Waning Gibbous30Sun
31Mon7:472.75:493.91:15-0.112:381.27:336:08Waning Gibbous31Mon
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 1:45 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 neap phase. Tonight's moon is 53% 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 minimum.

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 First Quarter (53% illuminated). This places Antioch, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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