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 1h 50m 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 - Mar 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:055.22:453.38:120.37:402.56:396:03First Quarter1Sat
2Sun1:475.04:243.19:190.48:443.06:386:04First Quarter2Sun
3Mon2:394.76:043.310:340.410:133.36:376:05First Quarter3Mon
4Tue3:424.57:093.511:460.411:373.26:356:06First Quarter4Tue
5Wed4:514.57:533.712:450.26:346:07Waxing Gibbous5Wed
6Thu5:554.58:273.912:403.01:330.06:326:08Waxing Gibbous6Thu
7Fri6:504.68:543.91:292.72:11-0.16:316:09Waxing Gibbous7Fri
8Sat7:374.79:184.12:102.32:43-0.16:296:10Waxing Gibbous8Sat
9Sun8:194.79:404.22:462.03:12-0.16:286:11Full Moon9Sun
10Mon9:004.710:014.43:201.63:380.16:276:12Full Moon10Mon
11Tue9:414.510:244.63:541.34:040.36:256:13Full Moon11Tue
12Wed10:234.310:474.84:270.94:300.76:246:14Full Moon12Wed
13Thu11:074.111:124.95:030.64:581.16:226:14Waning Gibbous13Thu
14Fri11:563.811:405.05:420.35:281.66:216:15Waning Gibbous14Fri
15Sat12:533.56:260.16:022.16:196:16Waning Gibbous15Sat
16Sun12:135.12:043.27:170.06:412.66:186:17Waning Gibbous16Sun
17Mon12:555.13:353.18:19-0.17:353.06:166:18Third Quarter17Mon
18Tue1:505.05:133.29:32-0.18:593.36:156:19Third Quarter18Tue
19Wed3:014.96:233.410:50-0.310:423.26:136:20Third Quarter19Wed
20Thu4:214.97:103.811:58-0.56:126:21Waning Crescent20Thu
21Fri5:375.07:484.112:032.812:55-0.76:106:22Waning Crescent21Fri
22Sat6:465.18:224.41:062.11:43-0.76:096:23Waning Crescent22Sat
23Sun7:475.18:554.82:001.52:26-0.66:076:23Waning Crescent23Sun
24Mon8:445.09:275.12:490.83:06-0.36:066:24New Moon24Mon
25Tue9:394.89:595.33:370.23:440.26:046:25New Moon25Tue
26Wed10:344.510:315.44:23-0.24:220.86:036:26New Moon26Wed
27Thu11:284.211:035.45:08-0.45:001.46:016:27Waxing Crescent27Thu
28Fri12:253.95:54-0.55:402.06:006:28Waxing Crescent28Fri
29Sat1:283.66:41-0.46:232.55:586:29Waxing Crescent29Sat
30Sun12:135.02:403.47:32-0.27:152.95:576:30Waxing Crescent30Sun
31Mon12:564.74:053.38:310.18:263.25:556:31First Quarter31Mon
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 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