Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 12:39 pm (0.3 ft)
Next high tide : in 4h 21m at 8:02 am (0.6 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 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:381.74:191.011:100.310:170.06:326:28Waxing Crescent1Fri
2Sat5:211.74:540.812:090.46:326:27Waxing Crescent2Sat
3Sun6:081.75:290.71:170.46:326:26Waxing Crescent3Sun
4Mon7:001.66:100.62:390.56:336:25Waxing Crescent4Mon
5Tue8:021.57:390.54:290.46:336:25First Quarter5Tue
6Wed9:131.410:110.512:310.35:560.46:336:24First Quarter6Wed
7Thu10:241.411:390.61:570.46:300.36:346:23First Quarter7Thu
8Fri11:221.43:490.56:530.36:346:22First Quarter8Fri
9Sat12:250.712:091.45:110.47:130.36:346:21Waxing Gibbous9Sat
10Sun1:000.912:471.46:120.47:320.26:356:20Waxing Gibbous10Sun
11Mon1:311.01:201.37:040.47:520.26:356:19Waxing Gibbous11Mon
12Tue2:021.11:501.37:510.48:120.16:356:18Waxing Gibbous12Tue
13Wed2:321.32:191.28:360.38:330.16:366:17Full Moon13Wed
14Thu3:031.42:481.19:220.38:540.16:366:17Full Moon14Thu
15Fri3:361.63:171.010:100.39:160.06:376:16Full Moon15Fri
16Sat4:121.63:480.911:010.39:400.06:376:15Full Moon16Sat
17Sun4:521.74:200.711:580.410:080.06:376:14Waning Gibbous17Sun
18Mon5:371.74:560.61:050.46:386:13Waning Gibbous18Mon
19Tue6:301.75:440.52:260.46:386:13Waning Gibbous19Tue
20Wed7:321.77:190.43:540.36:396:12Waning Gibbous20Wed
21Thu8:421.69:380.512:150.25:020.36:396:11Third Quarter21Thu
22Fri9:521.611:100.61:460.35:450.26:396:10Third Quarter22Fri
23Sat10:541.63:400.46:170.16:406:10Third Quarter23Sat
24Sun12:090.911:47 AM1.55:140.46:460.16:406:09Waning Crescent24Sun
25Mon12:561.112:341.46:300.47:130.06:416:08Waning Crescent25Mon
26Tue1:381.41:161.37:360.47:390.06:416:08Waning Crescent26Tue
27Wed2:191.61:561.18:360.38:06-0.16:426:07New Moon27Wed
28Thu2:581.72:351.09:320.38:33-0.16:426:06New Moon28Thu
29Fri3:371.83:130.810:270.39:00-0.16:436:06New Moon29Fri
30Sat4:171.93:510.711:200.39:290.06:436:05New Moon30Sat
31Sun4:571.84:300.612:140.36:446:04Waxing Crescent31Sun
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 10:20 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 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