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 3h 29m 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 - Mar 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:073.65:093.211:411.211:320.76:386:00Waxing Crescent1Sat
2Sun5:303.76:103.012:301.16:376:01Waxing Crescent2Sun
3Mon5:543.77:212.812:020.81:261.06:366:02Waxing Crescent3Mon
4Tue6:293.88:342.812:401.02:281.06:346:03First Quarter4Tue
5Wed7:173.89:412.81:291.23:330.86:336:04First Quarter5Wed
6Thu8:163.810:422.92:271.44:340.66:316:05First Quarter6Thu
7Fri9:213.911:363.03:331.45:290.46:306:06First Quarter7Fri
8Sat10:224.04:371.46:170.26:286:07Waxing Gibbous8Sat
9Sun12:233.111:17 AM4.15:351.37:010.16:276:08Waxing Gibbous9Sun
10Mon1:063.212:074.26:301.27:410.06:256:09Waxing Gibbous10Mon
11Tue1:443.312:564.37:231.08:190.06:246:10Waxing Gibbous11Tue
12Wed2:193.41:454.28:140.88:560.16:226:11Full Moon12Wed
13Thu2:503.52:364.19:070.69:320.26:216:12Full Moon13Thu
14Fri3:203.73:293.910:000.510:090.36:196:13Full Moon14Fri
15Sat3:533.94:273.610:550.410:480.46:186:14Waning Gibbous15Sat
16Sun4:304.05:313.411:540.311:300.66:166:15Waning Gibbous16Sun
17Mon5:144.16:433.112:560.36:156:16Waning Gibbous17Mon
18Tue6:064.07:573.012:190.82:020.36:136:17Third Quarter18Tue
19Wed7:143.99:093.01:181.03:100.26:126:17Third Quarter19Wed
20Thu8:373.810:143.12:261.24:160.16:106:18Third Quarter20Thu
21Fri9:533.811:133.23:391.25:17-0.16:096:19Third Quarter21Fri
22Sat10:573.84:481.26:10-0.16:076:20Waning Crescent22Sat
23Sun12:063.411:52 AM3.85:511.16:57-0.26:066:21Waning Crescent23Sun
24Mon12:533.512:413.76:471.07:39-0.16:046:22Waning Crescent24Mon
25Tue1:363.61:263.67:390.98:180.06:036:23New Moon25Tue
26Wed2:163.62:103.58:270.88:530.26:016:24New Moon26Wed
27Thu2:503.62:523.49:120.89:250.45:596:25New Moon27Thu
28Fri3:193.53:363.29:560.79:540.65:586:26New Moon28Fri
29Sat3:413.54:213.110:380.710:210.75:566:27New Moon29Sat
30Sun3:563.65:102.911:200.610:500.95:556:28Waxing Crescent30Sun
31Mon4:163.76:062.812:030.65:536:29Waxing Crescent31Mon
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