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 4h 51m 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 - Dec 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:402.74:104.111:001.67:044:47Waning Gibbous1Tue
2Wed7:272.85:043.912:38-0.512:001.67:054:47Waning Gibbous2Wed
3Thu8:122.96:073.61:21-0.41:081.57:064:47Third Quarter3Thu
4Fri8:563.17:223.32:06-0.22:231.37:074:47Third Quarter4Fri
5Sat9:383.48:553.02:520.03:401.07:084:47Third Quarter5Sat
6Sun10:173.610:212.83:380.24:520.67:094:47Third Quarter6Sun
7Mon10:543.911:352.74:230.45:580.27:104:47Waning Crescent7Mon
8Tue11:294.15:080.76:59-0.27:114:47Waning Crescent8Tue
9Wed12:412.612:034.35:541.07:55-0.57:114:47Waning Crescent9Wed
10Thu1:442.612:374.46:411.28:48-0.87:124:47New Moon10Thu
11Fri2:442.61:144.47:311.49:38-0.97:134:47New Moon11Fri
12Sat3:432.71:544.38:241.610:26-0.97:144:48New Moon12Sat
13Sun4:382.82:364.29:171.711:12-0.97:144:48Waxing Crescent13Sun
14Mon5:302.93:214.110:121.711:55-0.87:154:48Waxing Crescent14Mon
15Tue6:193.04:093.911:071.77:164:48Waxing Crescent15Tue
16Wed7:063.15:003.612:36-0.612:041.77:164:49Waxing Crescent16Wed
17Thu7:513.26:013.31:16-0.41:071.77:174:49First Quarter17Thu
18Fri8:353.47:242.91:55-0.12:161.57:184:49First Quarter18Fri
19Sat9:173.58:552.62:330.23:281.37:184:50First Quarter19Sat
20Sun9:563.710:132.43:110.44:391.07:194:50First Quarter20Sun
21Mon10:313.911:222.43:490.75:430.67:194:51Waxing Gibbous21Mon
22Tue11:024.04:281.06:380.37:204:51Waxing Gibbous22Tue
23Wed12:242.411:28 AM4.15:081.27:280.07:204:52Waxing Gibbous23Wed
24Thu1:222.411:52 AM4.25:501.48:14-0.37:214:52Waxing Gibbous24Thu
25Fri2:172.512:204.36:351.68:56-0.47:214:53Full Moon25Fri
26Sat3:092.612:564.47:241.79:37-0.57:214:54Full Moon26Sat
27Sun3:582.61:374.58:141.710:16-0.67:224:54Full Moon27Sun
28Mon4:432.72:234.59:051.710:54-0.67:224:55Full Moon28Mon
29Tue5:252.83:114.49:581.711:30-0.57:224:56Waning Gibbous29Tue
30Wed6:043.04:034.310:531.67:224:56Waning Gibbous30Wed
31Thu6:433.14:574.012:06-0.411:53 AM1.57:224:57Waning Gibbous31Thu
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