Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Antioch, CA.
Next low tide : in 1h 14m at 4:53 am (0.5 ft)
Next high tide : 10:46 am (2.7 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Dec 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:073.05:203.812:31-0.412:221.27:044:48Waning Gibbous1Fri
2Sat7:573.26:273.41:17-0.31:311.17:054:48Third Quarter2Sat
3Sun8:483.47:543.12:06-0.12:451.07:064:47Third Quarter3Sun
4Mon9:383.69:272.92:580.13:590.77:064:47Third Quarter4Mon
5Tue10:263.810:442.83:510.35:080.47:074:47Waning Crescent5Tue
6Wed11:104.011:502.74:430.56:110.07:084:47Waning Crescent6Wed
7Thu11:524.15:340.67:09-0.37:094:47Waning Crescent7Thu
8Fri12:512.812:304.26:240.88:02-0.57:104:47Waning Crescent8Fri
9Sat1:492.81:064.27:131.08:52-0.77:114:47New Moon9Sat
10Sun2:442.81:404.18:011.29:39-0.77:124:47New Moon10Sun
11Mon3:382.92:134.08:491.410:23-0.77:124:47New Moon11Mon
12Tue4:292.92:483.99:361.511:05-0.67:134:48Waxing Crescent12Tue
13Wed5:173.03:253.810:241.511:44-0.57:144:48Waxing Crescent13Wed
14Thu6:043.14:073.611:131.57:154:48Waxing Crescent14Thu
15Fri6:493.24:543.412:22-0.412:051.57:154:48Waxing Crescent15Fri
16Sat7:333.35:503.112:59-0.21:031.57:164:49First Quarter16Sat
17Sun8:173.47:092.81:360.02:071.47:174:49First Quarter17Sun
18Mon9:003.58:462.62:150.23:151.27:174:49First Quarter18Mon
19Tue9:413.710:032.52:560.54:220.97:184:50First Quarter19Tue
20Wed10:193.811:102.53:400.75:240.67:184:50First Quarter20Wed
21Thu10:534.04:260.86:190.37:194:50Waxing Gibbous21Thu
22Fri12:092.611:22 AM4.15:121.07:090.07:204:51Waxing Gibbous22Fri
23Sat1:042.611:51 AM4.25:581.27:56-0.27:204:51Waxing Gibbous23Sat
24Sun1:562.712:244.46:461.38:40-0.47:204:52Full Moon24Sun
25Mon2:462.71:034.57:351.39:22-0.57:214:53Full Moon25Mon
26Tue3:332.81:464.58:261.310:03-0.57:214:53Full Moon26Tue
27Wed4:192.92:334.59:181.310:43-0.57:224:54Full Moon27Wed
28Thu5:033.03:234.410:141.311:23-0.57:224:55Waning Gibbous28Thu
29Fri5:463.24:164.111:121.27:224:55Waning Gibbous29Fri
30Sat6:313.45:153.812:03-0.312:141.17:234:56Waning Gibbous30Sat
31Sun7:183.66:253.412:44-0.11:221.07:234:57Third 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 7:49 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 56% 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 (56% 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