Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Antioch, CA.
Next low tide : 1:06 pm (0.8 ft)
Next high tide : in 4h 44m at 7:04 am (3.2 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 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:373.810:302.63:070.54:520.87:234:58First Quarter1Wed
2Thu10:124.111:472.63:530.85:580.47:234:58Waxing Gibbous2Thu
3Fri10:504.44:421.16:580.07:234:59Waxing Gibbous3Fri
4Sat12:542.611:31 AM4.65:341.37:54-0.47:235:00Waxing Gibbous4Sat
5Sun1:552.612:174.76:311.58:46-0.67:235:01Full Moon5Sun
6Mon2:542.71:064.87:301.69:36-0.77:235:02Full Moon6Mon
7Tue3:492.81:574.88:311.610:23-0.87:235:03Full Moon7Tue
8Wed4:413.02:514.69:321.611:08-0.77:235:04Waning Gibbous8Wed
9Thu5:303.13:464.410:321.511:51-0.67:235:05Waning Gibbous9Thu
10Fri6:183.34:444.111:341.57:235:06Waning Gibbous10Fri
11Sat7:063.55:503.712:33-0.412:381.47:235:07Waning Gibbous11Sat
12Sun7:543.77:053.31:15-0.11:471.37:235:08Third Quarter12Sun
13Mon8:423.98:263.01:560.22:591.17:225:09Third Quarter13Mon
14Tue9:284.09:432.72:390.54:110.87:225:10Third Quarter14Tue
15Wed10:134.110:532.73:240.85:180.57:225:11Third Quarter15Wed
16Thu10:554.211:562.74:111.16:170.27:215:12Waning Crescent16Thu
17Fri11:334.34:591.47:09-0.17:215:13Waning Crescent17Fri
18Sat12:532.712:064.35:461.67:55-0.37:215:14Waning Crescent18Sat
19Sun1:462.812:354.26:321.78:37-0.47:205:15Waning Crescent19Sun
20Mon2:342.91:004.27:171.89:16-0.47:205:16New Moon20Mon
21Tue3:203.01:284.38:011.89:51-0.47:195:17New Moon21Tue
22Wed4:023.02:014.38:441.810:23-0.37:195:18New Moon22Wed
23Thu4:403.12:384.39:271.810:53-0.37:185:19New Moon23Thu
24Fri5:163.23:194.210:101.711:22-0.27:185:20Waxing Crescent24Fri
25Sat5:473.34:044.110:551.711:49-0.17:175:21Waxing Crescent25Sat
26Sun6:153.44:533.811:451.67:165:22Waxing Crescent26Sun
27Mon6:413.65:503.412:190.112:451.57:165:24Waxing Crescent27Mon
28Tue7:103.77:053.012:520.41:581.37:155:25First Quarter28Tue
29Wed7:474.08:572.71:310.73:201.17:145:26First Quarter29Wed
30Thu8:324.210:302.62:171.04:380.77:135:27First Quarter30Thu
31Fri9:234.411:432.63:111.35:470.37:125:28Waxing Gibbous31Fri
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 10:05 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 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