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 5h 36m 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 - Oct 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:070.91:131.56:330.37:570.26:326:28Waxing Gibbous1Sun
2Mon1:421.01:491.57:210.38:250.16:326:27Waxing Gibbous2Mon
3Tue2:171.12:241.58:070.28:530.16:336:26Waxing Gibbous3Tue
4Wed2:531.22:591.48:530.29:210.16:336:25Full Moon4Wed
5Thu3:311.43:341.39:400.29:500.06:336:24Full Moon5Thu
6Fri4:111.54:111.210:310.210:210.06:336:23Full Moon6Fri
7Sat4:561.64:501.111:270.310:530.06:346:22Waning Gibbous7Sat
8Sun5:441.65:340.912:300.36:346:21Waning Gibbous8Sun
9Mon6:391.66:280.81:450.46:356:21Waning Gibbous9Mon
10Tue7:421.67:460.712:130.23:120.46:356:20Third Quarter10Tue
11Wed8:541.69:330.61:100.24:400.36:356:19Third Quarter11Wed
12Thu10:071.611:070.72:300.35:470.36:366:18Third Quarter12Thu
13Fri11:131.64:030.46:350.26:366:17Third Quarter13Fri
14Sat12:130.812:091.65:250.47:120.16:366:16Waning Crescent14Sat
15Sun1:021.012:571.56:320.37:430.16:376:15Waning Crescent15Sun
16Mon1:451.21:391.47:290.38:120.16:376:15Waning Crescent16Mon
17Tue2:231.32:171.48:200.38:380.16:376:14New Moon17Tue
18Wed3:001.42:521.29:070.39:040.16:386:13New Moon18Wed
19Thu3:361.53:261.19:520.39:290.16:386:12New Moon19Thu
20Fri4:111.63:581.010:370.39:540.16:396:12New Moon20Fri
21Sat4:461.64:300.911:230.310:200.16:396:11Waxing Crescent21Sat
22Sun5:221.65:030.812:120.46:406:10Waxing Crescent22Sun
23Mon6:011.55:400.71:070.46:406:09Waxing Crescent23Mon
24Tue6:461.46:310.62:110.46:406:09Waxing Crescent24Tue
25Wed7:391.48:010.53:240.46:416:08First Quarter25Wed
26Thu8:421.310:030.612:350.44:330.36:416:07First Quarter26Thu
27Fri9:491.311:230.71:580.55:260.36:426:07First Quarter27Fri
28Sat10:491.33:430.56:050.26:426:06First Quarter28Sat
29Sun12:100.811:39 AM1.35:060.56:370.26:436:05First Quarter29Sun
30Mon12:470.912:241.36:100.47:060.16:436:05Waxing Gibbous30Mon
31Tue1:221.11:041.37:070.47:350.06:446:04Waxing Gibbous31Tue
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