Tides Today & Tomorrow in Ano Nuevo Island, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Ano Nuevo Island, CA.
Next low tide : 7:54 am (1.4 ft)
Next high tide : in 8m at 1:59 am (4.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9413878
Common Questions About Tides

Ano Nuevo Island, CA Tides - Jul 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:563.58:125.43:04-0.12:242.95:528:33Waxing Gibbous1Fri
2Sat10:403.78:515.43:43-0.43:093.05:538:33Waxing Gibbous2Sat
3Sun11:173.89:295.44:18-0.53:503.05:538:33Full Moon3Sun
4Mon11:503.910:065.44:52-0.64:293.05:548:32Full Moon4Mon
5Tue12:214.05:24-0.75:072.95:548:32Full Moon5Tue
6Wed12:514.05:55-0.75:462.85:558:32Full Moon6Wed
7Thu1:214.26:26-0.66:272.75:558:32Waning Gibbous7Thu
8Fri12:014.91:514.36:58-0.57:132.55:568:32Waning Gibbous8Fri
9Sat12:434.52:234.57:32-0.28:052.35:568:31Waning Gibbous9Sat
10Sun1:324.12:584.78:090.39:052.05:578:31Waning Gibbous10Sun
11Mon2:323.73:364.98:500.810:121.65:588:31Third Quarter11Mon
12Tue3:493.24:195.29:371.411:221.05:588:30Third Quarter12Tue
13Wed5:253.05:075.510:322.05:598:30Third Quarter13Wed
14Thu7:023.16:005.812:300.411:36 AM2.46:008:29Waning Crescent14Thu
15Fri8:223.46:556.01:31-0.212:442.76:008:29Waning Crescent15Fri
16Sat9:233.77:516.32:27-0.81:492.86:018:29Waning Crescent16Sat
17Sun10:144.18:476.43:18-1.22:502.76:028:28Waning Crescent17Sun
18Mon10:594.39:406.44:07-1.43:472.56:028:27New Moon18Mon
19Tue11:424.510:336.24:53-1.54:432.36:038:27New Moon19Tue
20Wed12:224.75:37-1.35:382.16:048:26New Moon20Wed
21Thu1:024.96:20-1.06:341.96:058:26Waxing Crescent21Thu
22Fri12:175.41:415.07:01-0.57:311.76:058:25Waxing Crescent22Fri
23Sat1:104.72:205.17:410.18:321.66:068:24Waxing Crescent23Sat
24Sun2:084.13:005.18:230.89:371.46:078:24First Quarter24Sun
25Mon3:143.53:425.19:081.510:451.26:088:23First Quarter25Mon
26Tue4:373.14:275.110:002.111:531.06:098:22First Quarter26Tue
27Wed6:163.05:165.111:022.66:098:21First Quarter27Wed
28Thu7:453.26:075.112:550.712:093.06:108:20Waxing Gibbous28Thu
29Fri8:483.56:575.21:500.41:123.16:118:20Waxing Gibbous29Fri
30Sat9:343.77:445.32:360.22:063.16:128:19Waxing Gibbous30Sat
31Sun10:113.88:285.43:170.02:523.06:138:18Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9413878)

Common Questions About Ano Nuevo Island, CA Tides

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What time does the tide turn (slack tide) in Ano Nuevo Island, CA today?

Slack tide in Ano Nuevo Island, CA is approximately 4:56 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 Ano Nuevo Island, CA?

Ano Nuevo Island, CA is currently in a transitional phase. Tonight's moon is 28% 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 Ano Nuevo Island, 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 Ano Nuevo Island, CA?

Tide predictions for Ano Nuevo Island, 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 Ano Nuevo Island, CA?

Tide data for Ano Nuevo Island, CA is sourced from NOAA Station #9413878. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9413878.

What is the moon phase in Ano Nuevo Island, CA tonight?

Tonight the moon over Ano Nuevo Island, CA is Waxing Crescent (28% illuminated). This places Ano Nuevo Island, 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