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 39m 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 - May 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:503.77:482.71:060.05:106:57Waxing Crescent1Thu
2Fri5:403.68:422.812:351.31:560.05:096:58First Quarter2Fri
3Sat6:403.59:342.91:371.32:500.15:086:59First Quarter3Sat
4Sun7:523.310:213.12:471.23:440.15:077:00First Quarter4Sun
5Mon9:163.311:023.23:571.04:360.15:067:01First Quarter5Mon
6Tue10:333.311:393.45:020.75:230.25:057:02Waxing Gibbous6Tue
7Wed11:393.36:020.46:080.35:047:03Waxing Gibbous7Wed
8Thu12:123.612:393.26:590.16:510.45:037:04Waxing Gibbous8Thu
9Fri12:443.81:373.27:55-0.27:340.55:027:05Full Moon9Fri
10Sat1:174.02:343.18:49-0.48:180.75:017:05Full Moon10Sat
11Sun1:534.13:333.09:42-0.69:050.85:007:06Full Moon11Sun
12Mon2:344.14:323.010:35-0.79:560.94:597:07Waning Gibbous12Mon
13Tue3:184.15:313.011:28-0.710:501.04:587:08Waning Gibbous13Tue
14Wed4:084.06:313.012:21-0.64:577:09Waning Gibbous14Wed
15Thu5:033.77:303.11:14-0.54:567:10Waning Gibbous15Thu
16Fri6:113.48:283.212:511.12:09-0.44:557:11Third Quarter16Fri
17Sat7:383.29:243.32:001.13:03-0.34:547:12Third Quarter17Sat
18Sun9:013.010:153.53:111.03:56-0.14:547:13Third Quarter18Sun
19Mon10:112.911:023.74:200.94:450.04:537:13Third Quarter19Mon
20Tue11:122.911:453.85:240.65:310.24:527:14Waning Crescent20Tue
21Wed12:072.86:210.46:130.44:517:15Waning Crescent21Wed
22Thu12:233.812:592.87:120.16:510.64:517:16Waning Crescent22Thu
23Fri12:563.81:482.88:000.07:270.84:507:17Waning Crescent23Fri
24Sat1:233.82:372.78:44-0.18:020.94:497:17New Moon24Sat
25Sun1:423.83:242.79:25-0.28:371.14:497:18New Moon25Sun
26Mon1:593.84:112.710:04-0.29:141.24:487:19New Moon26Mon
27Tue2:243.94:582.710:41-0.29:531.24:487:20New Moon27Tue
28Wed2:583.95:442.811:17-0.310:361.34:477:21Waxing Crescent28Wed
29Thu3:393.96:302.811:53-0.311:231.34:477:21Waxing Crescent29Thu
30Fri4:243.87:172.912:31-0.24:467:22Waxing Crescent30Fri
31Sat5:153.78:043.012:171.31:13-0.24:467:23Waxing Crescent31Sat
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