Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Antioch, CA.
Next low tide : in 4h 10m at 3:18 pm (1.0 ft)
Next high tide : 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 - May 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:403.83:203.29:38-0.29:250.56:097:59Full Moon1Sun
2Mon3:143.84:153.110:30-0.310:060.76:087:59Full Moon2Mon
3Tue3:453.85:123.011:20-0.410:480.96:078:00Full Moon3Tue
4Wed4:173.86:082.912:10-0.46:068:01Waning Gibbous4Wed
5Thu4:493.77:052.912:59-0.46:058:02Waning Gibbous5Thu
6Fri5:273.68:012.912:171.21:48-0.36:048:03Waning Gibbous6Fri
7Sat6:123.48:572.91:071.32:38-0.26:038:04Waning Gibbous7Sat
8Sun7:083.39:513.02:041.43:29-0.16:028:05Third Quarter8Sun
9Mon8:303.110:433.13:081.44:20-0.16:018:06Third Quarter9Mon
10Tue10:002.911:303.34:151.35:090.06:008:07Third Quarter10Tue
11Wed11:102.95:211.15:540.15:598:08Third Quarter11Wed
12Thu12:133.412:092.96:210.86:350.25:588:09Waning Crescent12Thu
13Fri12:513.51:032.97:150.67:140.45:578:09Waning Crescent13Fri
14Sat1:233.61:532.98:050.37:500.55:568:10Waning Crescent14Sat
15Sun1:503.72:432.88:520.18:250.75:558:11Waning Crescent15Sun
16Mon2:113.83:322.89:37-0.19:010.85:548:12New Moon16Mon
17Tue2:313.94:222.710:22-0.29:390.95:548:13New Moon17Tue
18Wed3:004.05:122.711:05-0.310:211.05:538:14New Moon18Wed
19Thu3:374.16:042.711:49-0.411:061.15:528:15Waxing Crescent19Thu
20Fri4:194.26:572.812:35-0.45:518:15Waxing Crescent20Fri
21Sat5:074.17:512.81:22-0.45:518:16Waxing Crescent21Sat
22Sun6:003.98:462.912:551.12:12-0.35:508:17Waxing Crescent22Sun
23Mon7:013.79:413.12:001.13:05-0.25:508:18First Quarter23Mon
24Tue8:183.410:353.33:121.14:00-0.15:498:19First Quarter24Tue
25Wed9:503.111:253.54:260.94:550.05:488:19First Quarter25Wed
26Thu11:133.05:370.65:470.15:488:20Waxing Gibbous26Thu
27Fri12:113.712:213.06:430.36:370.35:478:21Waxing Gibbous27Fri
28Sat12:543.91:233.07:430.07:240.55:478:22Waxing Gibbous28Sat
29Sun1:344.02:202.98:38-0.38:100.75:478:22Waxing Gibbous29Sun
30Mon2:104.03:162.99:30-0.48:540.95:468:23Full Moon30Mon
31Tue2:433.94:112.910:20-0.59:381.15:468:24Full Moon31Tue
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 6:43 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