Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Antioch, CA.
Next low tide : in 1h 33m at 7:57 am (-0.2 ft)
Next high tide : 2:00 pm (2.8 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Sep 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:093.55:143.511:100.411:301.36:377:36Full Moon1Tue
2Wed4:483.35:283.611:300.66:387:34Waning Gibbous2Wed
3Thu5:343.15:403.812:131.211:51 AM0.86:397:33Waning Gibbous3Thu
4Fri6:332.96:033.912:591.012:171.06:407:31Waning Gibbous4Fri
5Sat7:542.66:374.01:520.912:521.26:417:30Waning Gibbous5Sat
6Sun9:212.57:224.02:580.81:381.56:427:28Third Quarter6Sun
7Mon10:382.68:164.04:110.72:361.76:427:27Third Quarter7Mon
8Tue11:432.79:234.05:200.43:471.86:437:25Third Quarter8Tue
9Wed12:382.86:210.25:031.86:447:24Waning Crescent9Wed
10Thu1:252.97:120.06:121.66:457:22Waning Crescent10Thu
11Fri2:063.07:58-0.17:131.46:467:21Waning Crescent11Fri
12Sat12:514.32:433.28:39-0.28:101.16:477:19Waning Crescent12Sat
13Sun1:484.33:163.39:16-0.19:060.86:477:18New Moon13Sun
14Mon2:434.23:463.59:520.110:020.66:487:16New Moon14Mon
15Tue3:384.04:153.810:260.310:580.36:497:14New Moon15Tue
16Wed4:363.74:464.011:000.511:560.26:507:13Waxing Crescent16Wed
17Thu5:373.45:204.211:350.76:517:11Waxing Crescent17Thu
18Fri6:443.15:594.212:560.112:130.96:527:10Waxing Crescent18Fri
19Sat7:572.86:454.11:590.012:591.26:537:08First Quarter19Sat
20Sun9:112.87:443.93:060.01:561.46:537:07First Quarter20Sun
21Mon10:212.89:053.84:140.03:061.66:547:05First Quarter21Mon
22Tue11:242.910:323.75:19-0.14:231.66:557:03First Quarter22Tue
23Wed12:203.16:17-0.25:351.66:567:02Waxing Gibbous23Wed
24Thu1:093.37:08-0.36:391.46:577:00Waxing Gibbous24Thu
25Fri12:373.61:523.47:51-0.27:341.26:586:59Waxing Gibbous25Fri
26Sat1:253.62:313.58:29-0.18:251.16:596:57Waxing Gibbous26Sat
27Sun2:083.53:043.59:020.19:111.07:006:56Full Moon27Sun
28Mon2:503.33:333.69:310.39:550.87:006:54Full Moon28Mon
29Tue3:313.23:533.69:560.510:380.77:016:52Full Moon29Tue
30Wed4:143.04:043.710:180.711:190.67:026:51Full Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415064)

Common Questions About Antioch, CA Tides

Show All
What time does the tide turn (slack tide) in Antioch, CA today?

Slack tide in Antioch, CA is approximately 10:58 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 spring phase. Tonight's moon is 12% 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 maximum.

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 Waning Crescent (12% illuminated). This places Antioch, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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