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 5h 32m 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 - Sep 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:141.34:191.610:060.110:490.06:246:57New Moon1Wed
2Thu5:011.44:541.411:020.311:170.06:246:56Waxing Crescent2Thu
3Fri5:501.55:271.112:030.46:246:55Waxing Crescent3Fri
4Sat6:431.56:000.91:130.56:246:54Waxing Crescent4Sat
5Sun7:421.56:330.712:160.12:420.66:256:53First Quarter5Sun
6Mon8:521.57:170.612:510.25:050.66:256:52First Quarter6Mon
7Tue10:081.59:540.51:380.37:130.56:256:52First Quarter7Tue
8Wed11:171.511:400.52:530.37:400.46:266:51First Quarter8Wed
9Thu12:141.54:220.38:000.36:266:50Waxing Gibbous9Thu
10Fri12:370.612:581.55:350.38:170.36:266:49Waxing Gibbous10Fri
11Sat1:160.71:351.66:310.38:340.36:266:48Waxing Gibbous11Sat
12Sun1:500.82:071.67:170.28:520.26:276:47Waxing Gibbous12Sun
13Mon2:220.92:361.57:580.29:120.26:276:46Waxing Gibbous13Mon
14Tue2:531.03:031.58:390.29:320.26:276:45Full Moon14Tue
15Wed3:251.23:281.49:190.39:520.26:276:44Full Moon15Wed
16Thu3:581.33:541.310:010.310:130.16:286:43Full Moon16Thu
17Fri4:331.44:191.110:470.410:330.16:286:42Full Moon17Fri
18Sat5:111.44:441.011:390.410:560.16:286:41Waning Gibbous18Sat
19Sun5:551.55:110.812:430.56:286:40Waning Gibbous19Sun
20Mon6:481.55:390.72:080.66:296:39Waning Gibbous20Mon
21Tue7:551.56:170.64:060.56:296:38Third Quarter21Tue
22Wed9:151.58:440.512:440.25:590.46:296:37Third Quarter22Wed
23Thu10:311.610:590.52:020.26:410.36:306:36Third Quarter23Thu
24Fri11:341.73:460.37:100.36:306:35Third Quarter24Fri
25Sat12:090.712:261.75:130.27:380.26:306:34Waning Crescent25Sat
26Sun1:010.91:111.76:240.28:050.16:306:33Waning Crescent26Sun
27Mon1:471.11:521.77:260.28:310.16:316:32Waning Crescent27Mon
28Tue2:301.32:311.58:230.28:580.06:316:31New Moon28Tue
29Wed3:131.53:081.49:180.29:240.06:316:30New Moon29Wed
30Thu3:551.63:441.210:140.39:510.06:316:29New Moon30Thu
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