Tides Today & Tomorrow in Ano Nuevo Island, CA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Ano Nuevo Island, CA.
Next low tide : 10:10 pm (1.0 ft)
Next high tide : in 5h 09m at 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 - Aug 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:373.46:325.71:200.112:253.36:148:16Waxing Gibbous1Fri
2Sat9:283.77:316.02:15-0.51:343.36:158:15Waxing Gibbous2Sat
3Sun10:104.08:286.33:06-1.02:343.16:168:14Waxing Gibbous3Sun
4Mon10:484.29:246.43:53-1.33:302.76:168:13Full Moon4Mon
5Tue11:254.410:186.34:38-1.44:242.36:178:12Full Moon5Tue
6Wed12:014.75:21-1.35:191.96:188:11Full Moon6Wed
7Thu12:375.06:02-1.06:151.56:198:10Waning Gibbous7Thu
8Fri12:075.61:145.26:43-0.47:131.26:208:09Waning Gibbous8Fri
9Sat1:054.91:535.47:240.38:151.06:218:08Waning Gibbous9Sat
10Sun2:104.32:335.58:071.19:220.86:218:07Third Quarter10Sun
11Mon3:253.73:185.58:541.810:340.76:228:06Third Quarter11Mon
12Tue4:573.34:085.49:512.511:480.56:238:04Third Quarter12Tue
13Wed6:393.45:055.311:043.16:248:03Third Quarter13Wed
14Thu8:003.66:055.312:570.312:223.36:258:02Waning Crescent14Thu
15Fri8:573.97:035.31:560.11:303.36:268:01Waning Crescent15Fri
16Sat9:414.17:555.32:46-0.12:243.16:268:00Waning Crescent16Sat
17Sun10:174.28:415.33:27-0.23:102.96:277:58Waning Crescent17Sun
18Mon10:474.29:235.34:03-0.23:492.76:287:57New Moon18Mon
19Tue11:144.210:015.24:34-0.24:262.46:297:56New Moon19Tue
20Wed11:374.310:395.05:01-0.15:012.26:307:54New Moon20Wed
21Thu11:594.411:164.85:270.15:352.06:317:53New Moon21Thu
22Fri12:224.65:530.46:111.86:317:52Waxing Crescent22Fri
23Sat12:454.76:180.86:491.56:327:50Waxing Crescent23Sat
24Sun12:384.21:104.86:461.27:321.36:337:49Waxing Crescent24Sun
25Mon1:283.81:405.07:151.78:201.16:347:48Waxing Crescent25Mon
26Tue2:293.42:155.07:482.39:191.06:357:46First Quarter26Tue
27Wed3:513.12:595.18:292.810:280.76:367:45First Quarter27Wed
28Thu5:393.13:575.29:293.211:430.46:367:43First Quarter28Thu
29Fri7:163.35:055.310:583.56:377:42First Quarter29Fri
30Sat8:153.66:155.512:520.012:253.46:387:41Waxing Gibbous30Sat
31Sun8:573.97:215.81:51-0.41:343.06:397:39Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9413878)

Common Questions About Ano Nuevo Island, CA Tides

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

Slack tide in Ano Nuevo Island, CA is approximately 6:33 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 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