Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Antioch, CA.
Next low tide : in 58m at 2:02 am (1.1 ft)
Next high tide : 7:20 am (3.0 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:13 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Aug 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:212.86:210.55:111.36:118:15Waning Crescent1Mon
2Tue1:182.97:190.26:151.46:128:14Waning Crescent2Tue
3Wed12:004.52:103.08:110.07:171.36:138:13Waning Crescent3Wed
4Thu12:544.62:593.18:58-0.28:161.36:138:12New Moon4Thu
5Fri1:484.73:453.39:44-0.39:131.26:148:11New Moon5Fri
6Sat2:414.64:293.410:26-0.210:111.06:158:10New Moon6Sat
7Sun3:354.55:123.611:08-0.211:080.96:168:09New Moon7Sun
8Mon4:314.35:563.811:480.06:178:08Waxing Crescent8Mon
9Tue5:304.06:403.912:060.812:280.26:188:07Waxing Crescent9Tue
10Wed6:343.77:284.01:060.81:090.46:198:05Waxing Crescent10Wed
11Thu7:453.38:204.02:090.71:540.66:208:04First Quarter11Thu
12Fri9:003.19:164.03:160.72:430.96:208:03First Quarter12Fri
13Sat10:133.010:154.04:250.53:401.26:218:02First Quarter13Sat
14Sun11:203.011:124.15:320.44:411.36:228:01First Quarter14Sun
15Mon12:203.16:320.15:421.46:237:59Waxing Gibbous15Mon
16Tue12:044.11:143.27:250.06:391.46:247:58Waxing Gibbous16Tue
17Wed12:514.12:033.38:12-0.17:311.46:257:57Waxing Gibbous17Wed
18Thu1:334.02:473.48:53-0.18:191.46:267:55Waxing Gibbous18Thu
19Fri2:104.03:283.49:300.09:041.46:277:54Full Moon19Fri
20Sat2:443.94:053.510:040.19:471.36:277:53Full Moon20Sat
21Sun3:163.84:383.510:350.210:281.36:287:51Full Moon21Sun
22Mon3:493.85:063.511:030.311:091.26:297:50Full Moon22Mon
23Tue4:243.75:253.611:290.411:491.26:307:48Waning Gibbous23Tue
24Wed5:043.55:413.711:550.56:317:47Waning Gibbous24Wed
25Thu5:513.36:063.912:331.112:240.66:327:46Waning Gibbous25Thu
26Fri6:513.16:424.01:231.01:000.86:337:44Waning Gibbous26Fri
27Sat8:152.97:284.02:230.91:451.06:337:43Third Quarter27Sat
28Sun9:442.88:224.13:340.82:401.26:347:41Third Quarter28Sun
29Mon10:582.89:274.14:470.73:461.46:357:40Third Quarter29Mon
30Tue12:012.95:530.44:581.46:367:38Third Quarter30Tue
31Wed12:553.16:510.26:071.36:377:37Waning Crescent31Wed
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 4:41 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 64% 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 Third Quarter (64% 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