Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Antioch, CA.
Next low tide : 3:18 pm (1.0 ft)
Next high tide : in 1h 44m at 9:49 am (2.7 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 - Apr 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:363.52:253.98:490.59:190.16:507:31Full Moon1Fri
2Sat3:153.63:203.79:440.310:000.26:487:32Full Moon2Sat
3Sun3:523.74:163.510:380.110:400.46:477:33Full Moon3Sun
4Mon4:283.85:143.411:310.111:200.66:457:33Waning Gibbous4Mon
5Tue5:033.86:133.212:250.06:447:34Waning Gibbous5Tue
6Wed5:403.87:163.012:010.81:200.06:427:35Waning Gibbous6Wed
7Thu6:213.78:192.912:451.02:170.06:417:36Waning Gibbous7Thu
8Fri7:113.69:232.91:351.23:160.06:397:37Third Quarter8Fri
9Sat8:203.410:233.02:331.34:150.06:387:38Third Quarter9Sat
10Sun9:403.311:193.13:381.45:120.06:377:39Third Quarter10Sun
11Mon10:503.34:451.36:040.06:357:40Third Quarter11Mon
12Tue12:093.211:49 AM3.35:481.26:500.06:347:41Waning Crescent12Tue
13Wed12:543.412:413.36:451.07:310.06:327:42Waning Crescent13Wed
14Thu1:343.51:283.37:360.88:070.16:317:43Waning Crescent14Thu
15Fri2:103.52:123.28:240.68:410.36:297:44Waning Crescent15Fri
16Sat2:413.52:553.29:090.59:130.46:287:45New Moon16Sat
17Sun3:053.63:393.19:530.49:440.56:277:45New Moon17Sun
18Mon3:223.64:243.010:360.310:150.76:257:46New Moon18Mon
19Tue3:403.85:122.911:180.210:490.86:247:47New Moon19Tue
20Wed4:083.96:042.812:020.16:237:48Waxing Crescent20Wed
21Thu4:454.07:022.712:480.06:217:49Waxing Crescent21Thu
22Fri5:294.08:052.712:111.01:390.06:207:50Waxing Crescent22Fri
23Sat6:183.99:082.71:031.12:370.06:197:51Waxing Crescent23Sat
24Sun7:173.710:092.82:061.23:380.06:177:52First Quarter24Sun
25Mon8:283.611:053.03:181.24:390.06:167:53First Quarter25Mon
26Tue9:563.411:563.24:331.05:360.06:157:54First Quarter26Tue
27Wed11:193.45:440.86:280.06:147:55Waxing Gibbous27Wed
28Thu12:423.412:273.46:480.57:160.06:137:56Waxing Gibbous28Thu
29Fri1:243.61:273.37:480.28:000.26:117:57Waxing Gibbous29Fri
30Sat2:033.72:243.38:440.08:430.36:107:58Full Moon30Sat
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 12:33 pm — 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