Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Antioch, CA.
Next low tide (tomorrow) : 4:53 am (0.5 ft)
Next high tide : in 4h 03m at 8:53 pm (3.9 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:26 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Apr 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:473.77:072.712:510.65:526:30Waxing Crescent1Tue
2Wed5:283.78:122.712:051.11:450.55:506:30Waxing Crescent2Wed
3Thu6:173.79:142.812:571.32:440.45:496:31First Quarter3Thu
4Fri7:173.610:102.91:591.33:440.35:476:32First Quarter4Fri
5Sat8:303.611:013.03:081.34:400.25:466:33First Quarter5Sat
6Sun9:463.611:453.14:151.25:290.15:446:34First Quarter6Sun
7Mon10:533.75:181.06:150.15:436:35Waxing Gibbous7Mon
8Tue12:243.311:52 AM3.86:150.86:560.15:416:36Waxing Gibbous8Tue
9Wed12:583.412:463.77:100.57:360.25:406:37Waxing Gibbous9Wed
10Thu1:293.61:403.78:030.28:150.35:386:38Full Moon10Thu
11Fri1:593.72:353.58:570.08:540.45:376:39Full Moon11Fri
12Sat2:313.93:333.49:51-0.19:350.55:356:40Full Moon12Sat
13Sun3:074.04:333.210:46-0.210:190.75:346:41Waning Gibbous13Sun
14Mon3:494.15:363.111:42-0.311:080.85:336:42Waning Gibbous14Mon
15Tue4:364.06:423.012:40-0.35:316:42Waning Gibbous15Tue
16Wed5:303.87:483.012:020.91:41-0.25:306:43Third Quarter16Wed
17Thu6:403.68:523.01:051.12:42-0.25:286:44Third Quarter17Thu
18Fri8:103.49:533.22:151.13:43-0.25:276:45Third Quarter18Fri
19Sat9:313.310:473.43:281.14:40-0.25:266:46Third Quarter19Sat
20Sun10:383.311:373.54:371.05:32-0.15:246:47Waning Crescent20Sun
21Mon11:353.35:400.86:17-0.15:236:48Waning Crescent21Mon
22Tue12:213.612:273.26:360.66:590.15:226:49Waning Crescent22Tue
23Wed1:013.71:153.17:270.47:360.35:206:50Waning Crescent23Wed
24Thu1:363.72:013.08:150.38:110.55:196:51New Moon24Thu
25Fri2:063.62:472.98:590.28:430.75:186:52New Moon25Fri
26Sat2:293.63:332.89:420.29:130.85:166:53New Moon26Sat
27Sun2:433.64:202.810:220.19:441.05:156:54New Moon27Sun
28Mon3:013.75:082.711:010.110:171.05:146:54Waxing Crescent28Mon
29Tue3:293.75:592.711:400.110:551.15:136:55Waxing Crescent29Tue
30Wed4:063.86:522.712:210.05:126:56Waxing Crescent30Wed
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 12:53 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 47% 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 (47% 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