Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 2h 57m at 5:02 pm (0.7 ft)
Next high tide : 7:43 pm (0.7 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Dec 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:070.910:54 AM1.15:040.65:530.17:035:57Third Quarter1Fri
2Sat12:441.011:42 AM1.06:170.56:230.07:035:57Waning Crescent2Sat
3Sun1:181.212:270.97:170.56:520.07:045:57Waning Crescent3Sun
4Mon1:501.41:090.98:100.47:21-0.17:055:57Waning Crescent4Mon
5Tue2:241.51:500.88:590.37:51-0.17:055:57Waning Crescent5Tue
6Wed2:581.62:310.79:470.28:23-0.17:065:57New Moon6Wed
7Thu3:351.73:140.710:340.28:57-0.27:075:58New Moon7Thu
8Fri4:151.83:590.611:220.19:34-0.17:075:58New Moon8Fri
9Sat4:561.84:480.612:110.17:085:58Waxing Crescent9Sat
10Sun5:411.85:460.61:030.17:095:58Waxing Crescent10Sun
11Mon6:281.76:570.61:570.17:095:59Waxing Crescent11Mon
12Tue7:191.68:240.62:510.17:105:59Waxing Crescent12Tue
13Wed8:151.59:550.81:030.33:430.07:105:59First Quarter13Wed
14Thu9:161.311:111.02:400.54:320.07:116:00First Quarter14Thu
15Fri10:181.24:280.55:16-0.17:126:00First Quarter15Fri
16Sat12:101.211:19 AM1.06:030.55:56-0.17:126:00Waxing Gibbous16Sat
17Sun12:581.412:160.97:220.46:33-0.17:136:01Waxing Gibbous17Sun
18Mon1:411.61:080.88:250.37:09-0.27:136:01Waxing Gibbous18Mon
19Tue2:211.71:560.79:180.37:44-0.27:146:02Waxing Gibbous19Tue
20Wed3:001.82:410.710:040.28:19-0.27:146:02Full Moon20Wed
21Thu3:371.83:240.610:450.28:54-0.17:156:03Full Moon21Thu
22Fri4:131.84:060.611:240.19:30-0.17:156:03Full Moon22Fri
23Sat4:481.74:480.612:010.17:166:04Full Moon23Sat
24Sun5:231.65:330.512:390.17:166:04Waning Gibbous24Sun
25Mon5:581.56:250.51:190.17:176:05Waning Gibbous25Mon
26Tue6:341.47:290.62:010.17:176:05Waning Gibbous26Tue
27Wed7:111.38:490.612:060.32:440.17:186:06Waning Gibbous27Wed
28Thu7:511.210:120.71:050.43:280.17:186:07Third Quarter28Thu
29Fri8:381.011:180.92:340.54:110.17:186:07Third Quarter29Fri
30Sat9:340.94:190.64:510.07:196:08Third Quarter30Sat
31Sun12:071.010:37 AM0.85:530.65:310.07:196:08Third Quarter31Sun
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 6:22 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Nonopapa, Niihau Island, HI in a neap tide cycle, so tidal ranges are near their weekly minimum 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