Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Antioch, CA.
Next low tide : in 0m at 1:34 pm (0.7 ft)
Next high tide : 7:36 pm (4.1 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:13 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Sep 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:243.110:103.94:300.33:471.26:377:36First Quarter1Fri
2Sat11:303.111:153.95:360.24:541.36:387:34First Quarter2Sat
3Sun12:283.36:350.05:591.36:397:33Waxing Gibbous3Sun
4Mon12:123.91:213.47:27-0.16:581.36:407:31Waxing Gibbous4Mon
5Tue1:023.92:083.58:13-0.17:511.26:417:30Waxing Gibbous5Tue
6Wed1:463.92:513.58:54-0.18:401.26:427:28Waxing Gibbous6Wed
7Thu2:273.83:303.69:310.09:251.16:437:27Full Moon7Thu
8Fri3:063.74:043.510:050.210:081.16:437:25Full Moon8Fri
9Sat3:433.64:343.510:350.310:501.06:447:23Full Moon9Sat
10Sun4:203.44:573.611:020.511:301.06:457:22Full Moon10Sun
11Mon4:593.35:113.611:280.66:467:20Waning Gibbous11Mon
12Tue5:433.25:293.712:100.911:54 AM0.76:477:19Waning Gibbous12Tue
13Wed6:383.05:583.812:530.812:260.96:487:17Waning Gibbous13Wed
14Thu7:472.96:373.91:420.81:061.06:487:16Waning Gibbous14Thu
15Fri9:022.87:263.92:410.71:561.26:497:14Third Quarter15Fri
16Sat10:132.88:243.83:480.62:561.46:507:13Third Quarter16Sat
17Sun11:162.99:333.84:540.54:061.46:517:11Third Quarter17Sun
18Mon12:103.05:540.35:171.36:527:09Third Quarter18Mon
19Tue12:583.16:480.16:221.26:537:08Waning Crescent19Tue
20Wed1:413.37:360.07:220.96:547:06Waning Crescent20Wed
21Thu12:564.02:203.48:200.08:180.76:547:05Waning Crescent21Thu
22Fri1:534.02:573.69:010.19:140.56:557:03New Moon22Fri
23Sat2:484.03:323.79:420.210:090.36:567:02New Moon23Sat
24Sun3:443.84:083.910:220.311:040.16:577:00New Moon24Sun
25Mon4:423.64:454.011:020.411:590.06:586:58Waxing Crescent25Mon
26Tue5:433.45:254.011:440.66:596:57Waxing Crescent26Tue
27Wed6:473.26:094.012:560.012:300.87:006:55Waxing Crescent27Wed
28Thu7:543.17:033.81:560.01:221.07:016:54First Quarter28Thu
29Fri9:023.08:113.72:570.02:211.27:016:52First Quarter29Fri
30Sat10:073.19:323.54:010.03:271.37:026:51First Quarter30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415064)

Common Questions About Antioch, CA Tides

Show All
What time does the tide turn (slack tide) in Antioch, CA today?

Slack tide in Antioch, CA is approximately 4:35 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 64% 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 Third Quarter (64% 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