Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 3h 00m at 12:39 pm (0.3 ft)
Next high tide : 7:42 pm (1.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Oct 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:061.23:001.38:580.39:200.26:326:28New Moon1Tue
2Wed3:361.33:241.29:390.39:380.16:326:27New Moon2Wed
3Thu4:071.43:481.110:220.49:560.16:336:26New Moon3Thu
4Fri4:391.54:111.011:080.410:140.16:336:25Waxing Crescent4Fri
5Sat5:131.54:340.811:590.510:330.26:336:24Waxing Crescent5Sat
6Sun5:521.54:570.71:020.56:346:23Waxing Crescent6Sun
7Mon6:391.55:210.62:260.56:346:22Waxing Crescent7Mon
8Tue7:411.511:580.36:346:21First Quarter8Tue
9Wed8:581.59:010.45:560.46:356:20First Quarter9Wed
10Thu10:131.511:120.51:110.36:260.36:356:19First Quarter10Thu
11Fri11:141.63:160.46:510.26:356:19First Quarter11Fri
12Sat12:080.612:051.64:550.37:160.16:366:18Waxing Gibbous12Sat
13Sun12:520.812:501.66:080.37:410.16:366:17Waxing Gibbous13Sun
14Mon1:341.11:311.67:120.38:070.06:366:16Waxing Gibbous14Mon
15Tue2:161.32:101.58:120.28:33-0.16:376:15Full Moon15Tue
16Wed2:581.62:491.39:110.29:01-0.16:376:14Full Moon16Wed
17Thu3:411.73:281.110:110.39:29-0.16:386:14Full Moon17Thu
18Fri4:261.94:080.911:130.39:59-0.16:386:13Full Moon18Fri
19Sat5:121.94:490.712:210.36:386:12Waning Gibbous19Sat
20Sun6:021.95:370.61:370.36:396:11Waning Gibbous20Sun
21Mon6:581.86:450.43:080.36:396:11Waning Gibbous21Mon
22Tue8:031.78:470.44:460.36:406:10Third Quarter22Tue
23Wed9:141.610:530.512:370.35:480.26:406:09Third Quarter23Wed
24Thu10:221.52:190.46:240.26:416:08Third Quarter24Thu
25Fri12:000.611:20 AM1.44:090.56:500.26:416:08Third Quarter25Fri
26Sat12:410.812:071.45:310.57:100.26:426:07Waning Crescent26Sat
27Sun1:151.012:461.36:340.47:280.16:426:06Waning Crescent27Sun
28Mon1:461.11:191.27:270.47:460.16:436:06Waning Crescent28Mon
29Tue2:161.31:481.18:150.48:040.16:436:05Waning Crescent29Tue
30Wed2:461.42:171.09:010.48:220.16:446:05New Moon30Wed
31Thu3:151.52:440.99:460.48:420.06:446:04New Moon31Thu
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 4:10 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 29% 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 Crescent (29% 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