Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 2h 59m at 12:37 am (0.1 ft)
Next high tide : 6:29 am (1.0 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waning Gibbous (89% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Oct 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:031.02:121.77:400.18:530.16:326:29Waning Crescent1Sun
2Mon2:441.22:491.68:340.19:190.06:326:28New Moon2Mon
3Tue3:271.43:261.59:300.29:450.06:326:27New Moon3Tue
4Wed4:111.64:031.310:280.210:130.06:336:26New Moon4Wed
5Thu4:581.74:401.011:300.310:420.06:336:25Waxing Crescent5Thu
6Fri5:481.85:200.812:410.46:336:24Waxing Crescent6Fri
7Sat6:431.86:060.62:070.46:346:23Waxing Crescent7Sat
8Sun7:481.77:210.53:560.46:346:22First Quarter8Sun
9Mon9:011.79:410.412:310.25:420.36:346:21First Quarter9Mon
10Tue10:161.611:330.51:440.36:360.26:356:20First Quarter10Tue
11Wed11:221.63:370.47:090.26:356:20First Quarter11Wed
12Thu12:310.712:161.65:100.47:350.26:356:19Waxing Gibbous12Thu
13Fri1:110.812:591.56:190.47:550.26:366:18Waxing Gibbous13Fri
14Sat1:451.01:351.47:130.38:140.16:366:17Waxing Gibbous14Sat
15Sun2:171.12:071.48:010.38:320.16:366:16Waxing Gibbous15Sun
16Mon2:471.32:361.38:450.38:500.16:376:15Full Moon16Mon
17Tue3:171.43:021.19:280.39:090.16:376:15Full Moon17Tue
18Wed3:471.53:281.010:110.49:280.16:386:14Full Moon18Wed
19Thu4:181.53:530.910:560.49:480.16:386:13Full Moon19Thu
20Fri4:501.64:170.811:450.410:080.16:386:12Waning Gibbous20Fri
21Sat5:261.64:420.712:420.46:396:11Waning Gibbous21Sat
22Sun6:071.55:080.51:540.46:396:11Waning Gibbous22Sun
23Mon6:581.55:440.53:270.46:406:10Waning Gibbous23Mon
24Tue8:031.58:090.45:040.46:406:09Third Quarter24Tue
25Wed9:161.510:480.512:140.35:490.36:416:09Third Quarter25Wed
26Thu10:231.511:480.62:040.46:180.26:416:08Third Quarter26Thu
27Fri11:191.54:030.46:430.16:426:07Third Quarter27Fri
28Sat12:300.812:071.55:280.47:070.16:426:07Waning Crescent28Sat
29Sun1:091.012:501.56:380.37:320.06:426:06Waning Crescent29Sun
30Mon1:491.31:311.47:410.37:58-0.16:436:05Waning Crescent30Mon
31Tue2:291.52:121.28:410.38:25-0.16:446:05New Moon31Tue
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 3:33 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 spring phase. Tonight's moon is 89% 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 near their weekly maximum.

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 (89% illuminated). This places Nonopapa, Niihau Island, HI in a spring tide cycle, so tidal ranges are near their weekly maximum 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