Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Antioch, CA.
Next low tide : 6:42 pm (1.7 ft)
Next high tide : in 55m at 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 - Apr 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:193.810:552.82:321.54:48-0.16:517:30Third Quarter1Thu
2Fri9:583.611:533.03:511.55:48-0.26:507:31Third Quarter2Fri
3Sat11:163.65:081.56:41-0.36:487:32Waning Crescent3Sat
4Sun12:443.212:183.56:171.37:26-0.26:477:33Waning Crescent4Sun
5Mon1:283.41:103.57:171.18:06-0.16:457:34Waning Crescent5Mon
6Tue2:083.51:573.48:100.98:410.16:447:35Waning Crescent6Tue
7Wed2:433.62:413.29:000.89:120.36:427:35New Moon7Wed
8Thu3:133.63:263.09:460.69:390.66:417:36New Moon8Thu
9Fri3:363.64:122.910:300.510:040.86:397:37New Moon9Fri
10Sat3:493.65:002.711:120.410:281.06:387:38New Moon10Sat
11Sun4:003.75:532.611:540.310:541.16:367:39Waxing Crescent11Sun
12Mon4:223.86:502.512:360.36:357:40Waxing Crescent12Mon
13Tue4:543.97:502.51:210.26:337:41Waxing Crescent13Tue
14Wed5:353.98:522.512:111.42:120.26:327:42Waxing Crescent14Wed
15Thu6:233.99:522.61:021.53:080.16:317:43First Quarter15Thu
16Fri7:203.810:472.72:031.64:070.06:297:44First Quarter16Fri
17Sat8:293.711:352.83:141.65:030.06:287:45First Quarter17Sat
18Sun9:503.64:271.45:53-0.16:267:46First Quarter18Sun
19Mon12:173.011:09 AM3.65:361.26:370.06:257:47Waxing Gibbous19Mon
20Tue12:533.112:173.66:390.87:170.16:247:48Waxing Gibbous20Tue
21Wed1:233.41:183.57:370.57:530.26:227:49Waxing Gibbous21Wed
22Thu1:503.62:163.48:340.18:290.46:217:49Waxing Gibbous22Thu
23Fri2:163.83:153.29:30-0.29:040.76:207:50Full Moon23Fri
24Sat2:464.14:153.010:26-0.49:430.96:187:51Full Moon24Sat
25Sun3:204.25:182.811:22-0.610:251.06:177:52Full Moon25Sun
26Mon4:004.36:222.712:18-0.66:167:53Waning Gibbous26Mon
27Tue4:444.27:262.71:16-0.66:157:54Waning Gibbous27Tue
28Wed5:354.08:302.712:101.32:14-0.56:137:55Waning Gibbous28Wed
29Thu6:333.79:312.81:141.43:13-0.46:127:56Third Quarter29Thu
30Fri7:523.410:283.02:251.54:10-0.36:117:57Third Quarter30Fri
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 4:21 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 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