Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Antioch, CA.
Next low tide : in 4h 24m at 2:02 am (1.1 ft)
Next high tide : 7:20 am (3.0 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Apr 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:303.59:492.91:531.33:430.26:507:31Third Quarter1Fri
2Sat8:433.410:473.02:521.44:410.26:497:31Third Quarter2Sat
3Sun10:033.411:403.13:581.45:350.16:477:32Third Quarter3Sun
4Mon11:103.45:041.36:230.16:467:33Third Quarter4Mon
5Tue12:273.212:053.46:051.27:060.16:447:34Waning Crescent5Tue
6Wed1:103.412:553.47:001.07:450.16:437:35Waning Crescent6Wed
7Thu1:483.51:403.47:500.88:200.26:417:36Waning Crescent7Thu
8Fri2:213.52:243.38:380.68:540.36:407:37Waning Crescent8Fri
9Sat2:473.63:083.39:230.59:260.56:387:38New Moon9Sat
10Sun3:083.73:533.210:080.39:590.66:377:39New Moon10Sun
11Mon3:283.84:413.110:530.210:330.76:357:40New Moon11Mon
12Tue3:553.95:343.011:390.111:100.86:347:41Waxing Crescent12Tue
13Wed4:314.16:312.912:280.06:327:42Waxing Crescent13Wed
14Thu5:144.17:342.81:210.06:317:43Waxing Crescent14Thu
15Fri6:034.08:402.812:441.02:190.06:307:44Waxing Crescent15Fri
16Sat7:003.99:452.81:441.13:210.06:287:44First Quarter16Sat
17Sun8:103.710:453.02:551.14:230.06:277:45First Quarter17Sun
18Mon9:393.511:403.24:101.15:220.06:257:46First Quarter18Mon
19Tue11:033.45:220.96:160.06:247:47Waxing Gibbous19Tue
20Wed12:293.412:123.46:290.67:050.06:237:48Waxing Gibbous20Wed
21Thu1:143.61:123.47:300.47:510.16:217:49Waxing Gibbous21Thu
22Fri1:563.72:073.38:260.18:330.36:207:50Waxing Gibbous22Fri
23Sat2:343.83:003.29:190.09:140.56:197:51Full Moon23Sat
24Sun3:093.83:543.110:10-0.19:530.76:187:52Full Moon24Sun
25Mon3:403.74:473.011:00-0.210:310.96:167:53Full Moon25Mon
26Tue4:063.75:412.911:48-0.211:091.06:157:54Waning Gibbous26Tue
27Wed4:323.76:352.912:34-0.26:147:55Waning Gibbous27Wed
28Thu5:023.67:302.81:21-0.26:137:56Waning Gibbous28Thu
29Fri5:403.58:252.812:321.32:09-0.16:117:57Waning Gibbous29Fri
30Sat6:263.49:192.91:221.32:58-0.16:107:58Third Quarter30Sat
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 4:41 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 74% 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 Gibbous (74% 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