Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Antioch, CA.
Next low tide (tomorrow) : 2:37 am (0.8 ft)
Next high tide : in 3h 44m at 7:29 pm (3.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Jan 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:162.712:484.26:571.59:05-0.47:234:58New Moon1Tue
2Wed3:052.81:134.37:391.69:43-0.57:234:59New Moon2Wed
3Thu3:522.81:454.38:231.710:20-0.57:234:59New Moon3Thu
4Fri4:362.92:254.49:081.710:56-0.57:235:00New Moon4Fri
5Sat5:183.03:084.39:551.711:30-0.47:235:01Waxing Crescent5Sat
6Sun5:573.13:554.210:441.67:235:02Waxing Crescent6Sun
7Mon6:353.24:464.012:05-0.411:38 AM1.67:235:03Waxing Crescent7Mon
8Tue7:133.35:433.712:40-0.212:391.57:235:04Waxing Crescent8Tue
9Wed7:513.56:533.31:180.01:511.47:235:05First Quarter9Wed
10Thu8:323.78:302.92:000.23:111.27:235:06First Quarter10Thu
11Fri9:144.010:072.72:460.54:290.87:235:07First Quarter11Fri
12Sat9:584.211:252.73:370.85:390.47:235:08Waxing Gibbous12Sat
13Sun10:434.44:321.16:420.07:225:09Waxing Gibbous13Sun
14Mon12:322.711:28 AM4.65:301.37:38-0.37:225:10Waxing Gibbous14Mon
15Tue1:342.812:134.66:281.58:30-0.57:225:11Waxing Gibbous15Tue
16Wed2:322.912:594.67:261.69:19-0.67:215:12Full Moon16Wed
17Thu3:273.01:464.68:231.610:04-0.67:215:13Full Moon17Thu
18Fri4:183.12:344.49:191.710:46-0.57:215:14Full Moon18Fri
19Sat5:063.23:224.310:131.711:26-0.47:205:15Waning Gibbous19Sat
20Sun5:523.34:124.011:081.67:205:16Waning Gibbous20Sun
21Mon6:363.45:063.712:04-0.212:041.67:195:17Waning Gibbous21Mon
22Tue7:193.56:103.412:390.01:051.57:195:18Waning Gibbous22Tue
23Wed8:023.77:283.01:140.32:101.47:185:19Third Quarter23Wed
24Thu8:453.88:492.81:490.63:201.27:175:21Third Quarter24Thu
25Fri9:273.910:032.72:280.94:280.97:175:22Third Quarter25Fri
26Sat10:074.011:102.73:111.25:300.57:165:23Third Quarter26Sat
27Sun10:454.14:001.46:250.27:155:24Waning Crescent27Sun
28Mon12:092.711:19 AM4.24:521.57:130.07:155:25Waning Crescent28Mon
29Tue1:032.811:51 AM4.35:441.67:56-0.27:145:26Waning Crescent29Tue
30Wed1:532.912:224.46:341.78:37-0.37:135:27Waning Crescent30Wed
31Thu2:393.012:574.47:221.79:15-0.37:125:28New Moon31Thu
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 11:03 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 transitional phase. Tonight's moon is 28% 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 Waxing Crescent (28% 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