Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 10m at 1:43 am (0.1 ft)
Next high tide : 7:00 am (0.6 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Oct 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:401.78:260.512:330.24:550.46:326:28First Quarter1Wed
2Thu9:581.610:400.51:310.36:210.36:326:27First Quarter2Thu
3Fri11:081.73:050.37:050.26:326:27First Quarter3Fri
4Sat12:040.612:071.74:430.37:370.26:336:26Waxing Gibbous4Sat
5Sun12:560.712:561.65:590.38:030.26:336:25Waxing Gibbous5Sun
6Mon1:370.91:371.66:590.38:260.16:336:24Waxing Gibbous6Mon
7Tue2:121.02:121.57:500.38:470.16:346:23Waxing Gibbous7Tue
8Wed2:461.22:441.48:360.39:070.16:346:22Full Moon8Wed
9Thu3:191.33:131.39:200.39:270.16:346:21Full Moon9Thu
10Fri3:521.43:411.210:040.39:470.16:356:20Full Moon10Fri
11Sat4:241.54:071.010:480.410:070.16:356:19Full Moon11Sat
12Sun4:571.54:320.911:360.410:280.16:356:18Waning Gibbous12Sun
13Mon5:331.54:560.812:310.56:366:18Waning Gibbous13Mon
14Tue6:131.55:210.61:370.56:366:17Waning Gibbous14Tue
15Wed7:011.45:520.53:050.56:366:16Waning Gibbous15Wed
16Thu8:051.47:350.44:560.46:376:15Third Quarter16Thu
17Fri9:191.410:490.512:220.46:000.36:376:14Third Quarter17Fri
18Sat10:291.411:520.62:000.46:300.36:386:14Third Quarter18Sat
19Sun11:251.53:580.46:550.26:386:13Third Quarter19Sun
20Mon12:310.712:121.55:190.47:190.16:386:12Waning Crescent20Mon
21Tue1:060.912:531.56:240.37:430.16:396:11Waning Crescent21Tue
22Wed1:431.11:321.57:210.38:080.06:396:10Waning Crescent22Wed
23Thu2:211.32:101.48:170.28:340.06:406:10Waning Crescent23Thu
24Fri3:001.52:491.39:140.29:01-0.16:406:09New Moon24Fri
25Sat3:421.73:281.110:120.29:29-0.16:416:08New Moon25Sat
26Sun4:271.84:080.911:130.310:00-0.16:416:08New Moon26Sun
27Mon5:141.94:510.712:200.36:426:07Waxing Crescent27Mon
28Tue6:061.95:430.61:360.36:426:06Waxing Crescent28Tue
29Wed7:051.86:580.43:030.36:436:06Waxing Crescent29Wed
30Thu8:111.78:590.44:310.26:436:05First Quarter30Thu
31Fri9:221.610:550.512:580.35:340.26:446:05First Quarter31Fri
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 4:21 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 Nonopapa, Niihau Island, HI?

Nonopapa, Niihau Island, HI is currently in a transitional phase. Tonight's moon is 79% 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 Waning Gibbous (79% 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