Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : 12:52 am (0.0 ft)
Next high tide : in 4h 44m at 5:42 pm (1.8 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:371.06:071.312:350.212:010.56:147:20Waning Gibbous1Fri
2Sat7:311.06:281.11:020.21:010.66:147:19Waning Gibbous2Sat
3Sun8:361.16:460.91:310.22:260.76:147:19Third Quarter3Sun
4Mon9:481.26:580.82:040.24:320.76:157:18Third Quarter4Mon
5Tue10:581.32:450.26:157:18Third Quarter5Tue
6Wed11:561.410:340.53:380.28:310.56:167:17Third Quarter6Wed
7Thu12:441.54:380.28:400.46:167:16Waning Crescent7Thu
8Fri12:090.51:261.75:370.19:030.36:167:16Waning Crescent8Fri
9Sat1:070.52:061.86:310.09:280.26:177:15Waning Crescent9Sat
10Sun1:550.62:441.97:220.09:550.26:177:14Waning Crescent10Sun
11Mon2:400.73:201.98:11-0.110:230.16:177:14New Moon11Mon
12Tue3:260.83:561.99:000.010:520.16:187:13New Moon12Tue
13Wed4:141.04:321.89:510.011:200.16:187:12New Moon13Wed
14Thu5:041.15:071.610:450.211:500.06:187:11Waxing Crescent14Thu
15Fri5:571.25:421.411:460.36:197:11Waxing Crescent15Fri
16Sat6:561.36:171.112:210.012:580.56:197:10Waxing Crescent16Sat
17Sun8:041.46:540.912:540.12:320.66:197:09First Quarter17Sun
18Mon9:191.57:410.71:330.14:420.66:207:08First Quarter18Mon
19Tue10:351.69:330.52:220.17:090.56:207:08First Quarter19Tue
20Wed11:431.711:290.53:270.28:010.46:207:07First Quarter20Wed
21Thu12:391.74:430.28:330.36:217:06Waxing Gibbous21Thu
22Fri12:420.61:271.85:520.18:590.36:217:05Waxing Gibbous22Fri
23Sat1:330.62:081.86:500.19:210.26:217:04Waxing Gibbous23Sat
24Sun2:140.72:441.77:390.19:420.26:227:03Waxing Gibbous24Sun
25Mon2:510.83:151.78:230.110:020.26:227:03Full Moon25Mon
26Tue3:270.93:441.69:050.210:220.26:227:02Full Moon26Tue
27Wed4:021.04:111.59:450.210:430.26:237:01Full Moon27Wed
28Thu4:371.14:361.410:260.311:040.26:237:00Full Moon28Thu
29Fri5:141.24:581.211:090.411:260.26:236:59Waning Gibbous29Fri
30Sat5:521.25:191.111:580.511:480.26:236:58Waning Gibbous30Sat
31Sun6:361.35:390.912:580.66:246:57Waning Gibbous31Sun
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 9:17 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 spring phase. Tonight's moon is 9% 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 Crescent (9% 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