Tides Today & Tomorrow in Ano Nuevo Island, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Ano Nuevo Island, CA.
Next low tide : in 1h 02m at 8:35 am (2.2 ft)
Next high tide : 2:56 pm (5.0 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:28 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9413878
Common Questions About Tides

Ano Nuevo Island, CA Tides - Nov 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:465.910:214.32:431.73:44-0.96:345:11Full Moon1Sat
2Sun9:216.011:174.33:262.24:27-1.16:355:10Full Moon2Sun
3Mon9:585.84:092.65:11-1.06:365:09Waning Gibbous3Mon
4Tue12:124.210:36 AM5.64:553.05:55-0.86:375:08Waning Gibbous4Tue
5Wed1:094.111:16 AM5.35:463.26:42-0.56:385:07Waning Gibbous5Wed
6Thu2:074.012:014.96:433.47:33-0.26:395:06Waning Gibbous6Thu
7Fri3:083.912:534.57:543.48:290.16:405:06Third Quarter7Fri
8Sat4:053.91:534.19:153.39:270.46:415:05Third Quarter8Sat
9Sun4:544.03:043.710:303.010:230.66:425:04Third Quarter9Sun
10Mon5:324.14:203.511:322.511:130.96:435:03Third Quarter10Mon
11Tue6:034.35:343.412:231.96:445:02Waning Crescent11Tue
12Wed6:304.66:413.41:061.46:455:01Waning Crescent12Wed
13Thu6:564.87:413.512:351.51:440.86:465:01Waning Crescent13Thu
14Fri7:225.18:363.71:121.82:190.36:475:00Waning Crescent14Fri
15Sat7:495.39:273.81:472.22:53-0.26:484:59New Moon15Sat
16Sun8:195.510:173.92:232.53:28-0.66:494:58New Moon16Sun
17Mon8:525.711:074.02:592.84:06-0.96:504:58New Moon17Mon
18Tue9:295.811:574.03:393.04:47-1.26:514:57New Moon18Tue
19Wed10:105.84:213.25:32-1.26:524:57Waxing Crescent19Wed
20Thu12:484.010:57 AM5.65:093.36:21-1.26:534:56Waxing Crescent20Thu
21Fri1:414.011:49 AM5.46:073.37:14-1.06:544:56Waxing Crescent21Fri
22Sat2:354.012:495.07:183.28:10-0.66:554:55First Quarter22Sat
23Sun3:274.22:004.58:443.09:08-0.26:564:55First Quarter23Sun
24Mon4:164.53:224.010:112.410:050.26:574:54First Quarter24Mon
25Tue5:004.84:503.711:251.711:010.86:584:54First Quarter25Tue
26Wed5:415.26:153.612:270.86:594:53Waxing Gibbous26Wed
27Thu6:215.67:313.71:200.17:004:53Waxing Gibbous27Thu
28Fri6:595.88:373.912:441.82:08-0.57:014:53Waxing Gibbous28Fri
29Sat7:366.09:364.11:322.32:52-1.07:024:53Full Moon29Sat
30Sun8:146.010:304.22:202.63:34-1.27:034:52Full Moon30Sun
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 11:45 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 37% 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 First Quarter (37% 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