Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 18m at 5:59 am (0.0 ft)
Next high tide : 1:48 pm (1.6 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Sep 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:571.27:380.81:370.33:460.66:246:57Third Quarter1Tue
2Wed10:131.39:140.72:260.35:320.66:246:56Third Quarter2Wed
3Thu11:181.411:020.63:290.36:460.56:246:55Third Quarter3Thu
4Fri12:131.64:370.27:330.46:256:54Waning Crescent4Fri
5Sat12:130.71:001.75:410.28:100.36:256:53Waning Crescent5Sat
6Sun1:070.81:451.86:380.18:450.26:256:52Waning Crescent6Sun
7Mon1:550.92:271.87:320.09:190.16:256:51Waning Crescent7Mon
8Tue2:421.03:081.88:250.09:530.16:266:50New Moon8Tue
9Wed3:281.13:491.89:170.010:270.16:266:49New Moon9Wed
10Thu4:161.34:291.610:110.111:010.06:266:48New Moon10Thu
11Fri5:061.45:091.511:070.211:350.16:266:47Waxing Crescent11Fri
12Sat5:581.45:511.212:090.36:276:46Waxing Crescent12Sat
13Sun6:561.56:361.012:110.11:210.46:276:45Waxing Crescent13Sun
14Mon8:011.57:330.812:510.22:490.56:276:44First Quarter14Mon
15Tue9:131.58:590.71:370.24:370.56:286:43First Quarter15Tue
16Wed10:271.510:430.62:370.36:140.46:286:42First Quarter16Wed
17Thu11:321.53:520.37:110.36:286:41First Quarter17Thu
18Fri12:020.712:261.65:070.37:480.36:286:40Waxing Gibbous18Fri
19Sat12:560.81:111.66:090.38:150.36:296:39Waxing Gibbous19Sat
20Sun1:360.81:491.67:010.38:390.26:296:38Waxing Gibbous20Sun
21Mon2:110.92:231.57:450.29:020.26:296:37Waxing Gibbous21Mon
22Tue2:431.02:541.58:260.29:240.26:296:36Full Moon22Tue
23Wed3:141.13:231.49:050.29:470.26:306:35Full Moon23Wed
24Thu3:461.23:511.39:440.310:110.26:306:34Full Moon24Thu
25Fri4:181.34:181.210:230.310:340.26:306:33Full Moon25Fri
26Sat4:521.34:441.111:060.410:580.26:316:32Waning Gibbous26Sat
27Sun5:281.35:111.011:540.411:220.26:316:32Waning Gibbous27Sun
28Mon6:091.45:410.912:520.56:316:31Waning Gibbous28Mon
29Tue7:001.46:180.72:090.56:316:30Waning Gibbous29Tue
30Wed8:041.47:220.612:240.33:450.56:326:29Third Quarter30Wed
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 9:53 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 spring phase. Tonight's moon is 86% 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 near their weekly maximum.

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 (86% illuminated). This places Nonopapa, Niihau Island, HI in a spring tide cycle, so tidal ranges are near their weekly maximum 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