Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Antioch, CA.
Next low tide : in 4h 59m at 3:20 am (1.1 ft)
Next high tide : 8:47 am (3.0 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - May 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:413.54:271.35:40-0.16:097:58First Quarter1Fri
2Sat12:073.011:05 AM3.55:381.06:29-0.16:087:59Waxing Gibbous2Sat
3Sun12:463.212:163.56:420.77:130.06:078:00Waxing Gibbous3Sun
4Mon1:223.41:193.47:420.47:540.16:068:01Waxing Gibbous4Mon
5Tue1:543.62:183.38:390.08:340.36:058:02Waxing Gibbous5Tue
6Wed2:253.83:173.19:34-0.29:140.56:048:03Full Moon6Wed
7Thu2:564.04:173.010:29-0.59:550.86:038:04Full Moon7Thu
8Fri3:304.15:182.911:23-0.610:390.96:028:05Full Moon8Fri
9Sat4:074.16:202.812:17-0.66:018:05Waning Gibbous9Sat
10Sun4:484.07:222.81:11-0.66:008:06Waning Gibbous10Sun
11Mon5:343.88:232.812:191.32:05-0.65:598:07Waning Gibbous11Mon
12Tue6:283.69:222.91:181.43:01-0.55:588:08Third Quarter12Tue
13Wed7:383.310:183.12:241.53:56-0.45:578:09Third Quarter13Wed
14Thu9:133.111:093.23:351.44:49-0.35:568:10Third Quarter14Thu
15Fri10:343.011:563.44:461.35:38-0.25:558:11Third Quarter15Fri
16Sat11:392.95:521.16:220.05:558:12Waning Crescent16Sat
17Sun12:373.512:362.96:520.87:010.25:548:13Waning Crescent17Sun
18Mon1:143.61:292.87:450.57:360.45:538:13Waning Crescent18Mon
19Tue1:463.72:192.78:350.38:090.65:528:14Waning Crescent19Tue
20Wed2:123.73:092.79:210.18:400.85:528:15New Moon20Wed
21Thu2:303.83:592.610:040.09:111.05:518:16New Moon21Thu
22Fri2:443.84:492.610:46-0.19:451.15:508:17New Moon22Fri
23Sat3:073.95:402.611:26-0.210:221.35:508:17New Moon23Sat
24Sun3:394.06:312.612:06-0.35:498:18Waxing Crescent24Sun
25Mon4:194.17:232.612:47-0.35:498:19Waxing Crescent25Mon
26Tue5:044.18:152.71:31-0.35:488:20Waxing Crescent26Tue
27Wed5:554.09:062.812:481.42:17-0.35:488:21Waxing Crescent27Wed
28Thu6:533.89:562.91:511.43:08-0.25:478:21First Quarter28Thu
29Fri8:023.510:433.13:021.43:59-0.15:478:22First Quarter29Fri
30Sat9:273.311:263.34:171.24:500.05:468:23First Quarter30Sat
31Sun10:553.15:290.95:390.15:468:23First Quarter31Sun
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 6:03 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 38% 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 First Quarter (38% 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