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 6h 42m 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 - Jul 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:224.05:363.111:29-0.410:461.65:498:33Full Moon1Fri
2Sat3:533.96:193.212:06-0.35:498:33Waning Gibbous2Sat
3Sun4:293.87:013.212:41-0.25:508:33Waning Gibbous3Sun
4Mon5:093.77:423.312:151.61:14-0.15:508:33Waning Gibbous4Mon
5Tue5:553.58:223.41:041.61:460.15:518:33Waning Gibbous5Tue
6Wed6:503.29:033.52:001.52:200.35:518:32Third Quarter6Wed
7Thu8:053.09:433.63:031.42:580.55:528:32Third Quarter7Thu
8Fri9:472.810:223.74:121.33:420.75:538:32Third Quarter8Fri
9Sat11:082.710:593.95:211.04:310.95:538:31Third Quarter9Sat
10Sun12:152.76:230.75:221.15:548:31Waning Crescent10Sun
11Mon1:142.87:190.46:151.25:548:31Waning Crescent11Mon
12Tue12:104.22:092.98:100.17:071.35:558:30Waning Crescent12Tue
13Wed12:494.43:002.98:58-0.27:591.35:568:30Waning Crescent13Wed
14Thu1:314.63:493.09:43-0.38:521.35:578:29New Moon14Thu
15Fri2:174.64:353.110:27-0.49:451.35:578:29New Moon15Fri
16Sat3:054.65:203.211:09-0.410:411.25:588:28New Moon16Sat
17Sun3:574.66:043.311:51-0.411:371.15:598:28Waxing Crescent17Sun
18Mon4:514.46:493.512:31-0.26:008:27Waxing Crescent18Mon
19Tue5:494.17:363.712:371.11:13-0.16:008:26Waxing Crescent19Tue
20Wed6:563.78:263.81:401.01:570.26:018:26First Quarter20Wed
21Thu8:163.39:204.02:490.92:440.46:028:25First Quarter21Thu
22Fri9:393.110:164.14:010.83:370.76:038:24First Quarter22Fri
23Sat10:553.011:104.25:130.64:350.96:038:23First Quarter23Sat
24Sun12:033.06:200.35:341.16:048:23Waxing Gibbous24Sun
25Mon12:024.31:043.07:200.06:311.26:058:22Waxing Gibbous25Mon
26Tue12:484.32:003.18:12-0.27:251.46:068:21Waxing Gibbous26Tue
27Wed1:314.22:513.29:00-0.38:151.56:078:20Waxing Gibbous27Wed
28Thu2:094.23:393.39:44-0.39:031.56:088:19Full Moon28Thu
29Fri2:434.14:233.310:23-0.39:471.66:088:18Full Moon29Fri
30Sat3:144.05:043.310:59-0.210:301.66:098:17Full Moon30Sat
31Sun3:453.95:423.411:320.011:121.66:108:16Full Moon31Sun
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