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 4h 03m at 4:54 am (0.0 ft)
Next high tide : 12:29 pm (1.3 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 - Sep 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:331.37:340.81:240.23:120.66:246:57Third Quarter1Sat
2Sun9:511.49:010.72:130.25:020.66:246:56Third Quarter2Sun
3Mon11:021.510:460.73:160.26:280.56:246:55Third Quarter3Mon
4Tue12:021.64:270.27:230.46:246:54Waning Crescent4Tue
5Wed12:040.712:551.85:350.18:050.36:256:53Waning Crescent5Wed
6Thu1:040.81:421.86:360.18:430.26:256:52Waning Crescent6Thu
7Fri1:550.92:261.97:320.09:180.16:256:51Waning Crescent7Fri
8Sat2:431.03:081.88:260.09:520.16:266:50New Moon8Sat
9Sun3:301.13:481.79:170.110:250.16:266:49New Moon9Sun
10Mon4:151.24:271.610:090.110:570.16:266:48New Moon10Mon
11Tue5:021.35:051.411:010.211:290.16:266:47Waxing Crescent11Tue
12Wed5:501.45:431.211:570.36:276:47Waxing Crescent12Wed
13Thu6:421.46:221.012:020.21:000.56:276:46Waxing Crescent13Thu
14Fri7:401.47:070.912:360.22:160.56:276:45Waxing Crescent14Fri
15Sat8:471.48:160.71:160.33:530.66:276:44First Quarter15Sat
16Sun9:591.410:020.62:070.35:390.56:286:43First Quarter16Sun
17Mon11:061.411:320.73:160.46:470.46:286:42First Quarter17Mon
18Tue12:021.44:330.47:240.46:286:41First Quarter18Tue
19Wed12:300.712:471.55:380.47:520.36:286:40Waxing Gibbous19Wed
20Thu1:120.81:261.56:320.38:170.36:296:39Waxing Gibbous20Thu
21Fri1:460.92:011.57:170.38:420.26:296:38Waxing Gibbous21Fri
22Sat2:191.02:321.57:590.29:070.26:296:37Waxing Gibbous22Sat
23Sun2:501.13:031.58:380.29:320.26:306:36Full Moon23Sun
24Mon3:231.13:321.49:180.29:570.26:306:35Full Moon24Mon
25Tue3:571.24:021.310:000.210:220.16:306:34Full Moon25Tue
26Wed4:331.34:321.210:440.310:480.16:306:33Full Moon26Wed
27Thu5:131.45:041.111:350.411:150.16:316:32Waning Gibbous27Thu
28Fri5:591.45:390.912:360.46:316:31Waning Gibbous28Fri
29Sat6:531.56:230.81:530.56:316:30Waning Gibbous29Sat
30Sun7:591.57:320.712:260.23:280.56:326:29Third Quarter30Sun
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 8:41 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 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