Tides Today & Tomorrow in Antioch, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Antioch, CA.
Next low tide : in 4h 03m at 1:33 am (0.9 ft)
Next high tide : 7:04 am (3.2 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9415064
Common Questions About Tides

Antioch, CA Tides - Jun 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:003.91:522.78:10-0.27:240.94:467:23Full Moon1Sun
2Mon1:283.92:462.68:58-0.48:001.24:457:24Full Moon2Mon
3Tue1:473.93:392.69:44-0.48:341.44:457:24Full Moon3Tue
4Wed2:033.84:312.610:26-0.59:101.64:457:25Full Moon4Wed
5Thu2:263.95:202.711:06-0.59:481.64:447:26Full Moon5Thu
6Fri2:583.96:082.711:45-0.410:321.74:447:26Waning Gibbous6Fri
7Sat3:383.96:542.812:22-0.44:447:27Waning Gibbous7Sat
8Sun4:223.87:402.91:00-0.34:447:27Waning Gibbous8Sun
9Mon5:133.68:253.012:141.71:39-0.24:447:28Waning Gibbous9Mon
10Tue6:103.49:073.11:151.62:20-0.14:437:28Third Quarter10Tue
11Wed7:213.19:463.32:241.53:020.14:437:29Third Quarter11Wed
12Thu8:542.910:203.53:361.33:440.24:437:29Third Quarter12Thu
13Fri10:212.810:483.74:450.94:260.54:437:30Third Quarter13Fri
14Sat11:332.711:143.95:480.65:070.74:437:30Waning Crescent14Sat
15Sun12:382.76:460.25:490.94:437:31Waning Crescent15Sun
16Mon1:392.77:41-0.26:331.14:437:31Waning Crescent16Mon
17Tue12:174.42:382.68:34-0.57:211.34:437:31New Moon17Tue
18Wed12:584.63:362.69:25-0.78:141.44:447:32New Moon18Wed
19Thu1:454.74:322.710:15-0.89:111.44:447:32New Moon19Thu
20Fri2:354.65:252.811:04-0.810:121.44:447:32Waxing Crescent20Fri
21Sat3:294.56:172.911:52-0.711:151.44:447:33Waxing Crescent21Sat
22Sun4:264.27:093.112:39-0.54:447:33Waxing Crescent22Sun
23Mon5:313.98:013.312:211.31:26-0.34:447:33First Quarter23Mon
24Tue6:473.58:523.61:311.32:14-0.14:457:33First Quarter24Tue
25Wed8:143.19:423.82:451.13:020.14:457:33First Quarter25Wed
26Thu9:342.910:294.04:000.93:500.44:457:33First Quarter26Thu
27Fri10:452.811:124.15:090.54:370.74:467:33Waxing Gibbous27Fri
28Sat11:502.711:514.26:120.25:230.94:467:33Waxing Gibbous28Sat
29Sun12:492.77:08-0.16:071.24:477:33Waxing Gibbous29Sun
30Mon12:254.21:452.77:58-0.36:501.44:477:33Waxing Gibbous30Mon
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 4:18 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 spring phase. Tonight's moon is 19% 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 Waxing Crescent (19% 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