Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 4h 14m at 7:20 pm (0.6 ft)
Next high tide : 10:58 pm (0.7 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (70% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Sep 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:380.71:191.56:060.28:170.36:246:57Waxing Gibbous1Fri
2Sat1:210.81:551.66:530.28:460.36:246:56Waxing Gibbous2Sat
3Sun1:590.82:291.67:360.29:150.26:246:55Waxing Gibbous3Sun
4Mon2:350.93:021.68:160.19:430.26:256:54Full Moon4Mon
5Tue3:111.03:341.68:570.110:120.26:256:53Full Moon5Tue
6Wed3:491.14:071.69:400.110:410.16:256:52Full Moon6Wed
7Thu4:291.24:401.510:250.211:110.16:256:51Full Moon7Thu
8Fri5:131.35:151.311:150.311:420.16:266:50Waning Gibbous8Fri
9Sat6:031.35:531.212:140.46:266:49Waning Gibbous9Sat
10Sun7:011.46:371.012:170.11:280.56:266:48Waning Gibbous10Sun
11Mon8:101.47:370.812:590.23:020.56:266:47Third Quarter11Mon
12Tue9:261.59:090.71:520.24:460.56:276:46Third Quarter12Tue
13Wed10:401.610:490.72:590.26:110.46:276:45Third Quarter13Wed
14Thu11:441.64:160.27:060.36:276:44Third Quarter14Thu
15Fri12:050.812:391.75:290.27:480.26:276:43Waning Crescent15Fri
16Sat1:020.91:261.76:320.28:230.26:286:42Waning Crescent16Sat
17Sun1:501.02:091.77:270.18:540.16:286:41Waning Crescent17Sun
18Mon2:331.12:481.78:180.19:240.16:286:40New Moon18Mon
19Tue3:141.23:241.69:050.29:530.16:296:39New Moon19Tue
20Wed3:541.33:591.49:520.210:200.16:296:38New Moon20Wed
21Thu4:331.44:321.310:380.310:480.16:296:37New Moon21Thu
22Fri5:131.45:051.211:250.311:150.26:296:37Waxing Crescent22Fri
23Sat5:541.45:371.012:170.46:306:36Waxing Crescent23Sat
24Sun6:401.46:120.91:160.56:306:35Waxing Crescent24Sun
25Mon7:331.36:560.712:160.32:300.56:306:34Waxing Crescent25Mon
26Tue8:381.38:210.612:560.33:590.56:306:33First Quarter26Tue
27Wed9:511.310:200.61:530.45:250.56:316:32First Quarter27Wed
28Thu10:571.311:390.73:140.46:210.46:316:31First Quarter28Thu
29Fri11:501.44:350.46:580.36:316:30First Quarter29Fri
30Sat12:280.812:351.45:400.47:290.36:326:29Waxing Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1610367)

Common Questions About Nonopapa, Niihau Island, HI Tides

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What time does the tide turn (slack tide) in Nonopapa, Niihau Island, HI today?

Slack tide in Nonopapa, Niihau Island, HI is approximately 9:09 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 Nonopapa, Niihau Island, HI?

Nonopapa, Niihau Island, HI is currently in a transitional phase. Tonight's moon is 70% 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 Nonopapa, Niihau Island, HI 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 Nonopapa, Niihau Island, HI?

Tide predictions for Nonopapa, Niihau Island, HI 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 Nonopapa, Niihau Island, HI?

Tide data for Nonopapa, Niihau Island, HI is sourced from NOAA Station #1610367. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=1610367.

What is the moon phase in Nonopapa, Niihau Island, HI tonight?

Tonight the moon over Nonopapa, Niihau Island, HI is Waxing Gibbous (70% illuminated). This places Nonopapa, Niihau Island, HI 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