Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 9:04 pm (0.5 ft)
Next high tide : in 10m at 12:42 pm (1.5 ft)
Sunset today : 7:24 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Oct 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:541.21:561.57:430.28:260.16:326:28Waning Crescent1Wed
2Thu2:341.32:341.48:330.28:540.16:326:27New Moon2Thu
3Fri3:121.43:091.39:200.39:200.16:336:26New Moon3Fri
4Sat3:491.53:431.210:050.39:470.16:336:25New Moon4Sat
5Sun4:261.54:151.110:500.310:140.16:336:24New Moon5Sun
6Mon5:031.54:470.911:360.410:420.26:346:23Waxing Crescent6Mon
7Tue5:421.55:210.812:270.46:346:22Waxing Crescent7Tue
8Wed6:241.55:590.71:240.46:346:21Waxing Crescent8Wed
9Thu7:141.46:540.62:330.56:356:20Waxing Crescent9Thu
10Fri8:141.38:340.612:250.33:490.46:356:20First Quarter10Fri
11Sat9:231.310:250.61:270.44:580.46:356:19First Quarter11Sat
12Sun10:281.311:350.72:590.55:470.36:366:18First Quarter12Sun
13Mon11:221.34:270.56:230.36:366:17First Quarter13Mon
14Tue12:210.912:081.35:370.46:540.26:366:16Waxing Gibbous14Tue
15Wed12:581.012:491.36:350.47:230.16:376:15Waxing Gibbous15Wed
16Thu1:341.21:271.37:270.37:520.16:376:15Waxing Gibbous16Thu
17Fri2:101.32:041.38:170.38:210.06:386:14Waxing Gibbous17Fri
18Sat2:481.52:421.29:060.28:510.06:386:13Full Moon18Sat
19Sun3:281.63:221.19:580.29:23-0.16:386:12Full Moon19Sun
20Mon4:101.74:031.010:510.29:570.06:396:11Full Moon20Mon
21Tue4:551.84:480.911:490.310:350.06:396:11Waning Gibbous21Tue
22Wed5:451.85:400.812:520.36:406:10Waning Gibbous22Wed
23Thu6:391.76:460.72:030.36:406:09Waning Gibbous23Thu
24Fri7:411.78:170.612:080.23:180.36:416:08Third Quarter24Fri
25Sat8:481.69:580.71:150.34:280.26:416:08Third Quarter25Sat
26Sun9:571.511:190.82:450.45:240.26:416:07Third Quarter26Sun
27Mon11:001.44:210.56:070.16:426:06Third Quarter27Mon
28Tue12:171.011:54 AM1.45:430.46:430.16:426:06Waning Crescent28Tue
29Wed1:031.212:421.36:510.47:130.16:436:05Waning Crescent29Wed
30Thu1:441.41:241.27:480.47:420.06:436:05Waning Crescent30Thu
31Fri2:211.52:021.18:380.38:080.06:446:04Waning Crescent31Fri
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 4:53 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 73% 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 (73% 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