Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 4h 25m at 9:38 am (0.0 ft)
Next high tide : 5:13 pm (1.7 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:01 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Apr 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:381.31:150.67:410.06:360.16:326:56Waning Crescent1Tue
2Wed1:161.31:510.88:03-0.17:310.06:316:56Waning Crescent2Wed
3Thu1:521.32:281.08:26-0.18:250.06:316:56Waning Crescent3Thu
4Fri2:271.23:071.28:50-0.29:190.06:306:57New Moon4Fri
5Sat3:031.13:481.49:15-0.210:150.06:296:57New Moon5Sat
6Sun3:390.94:311.59:42-0.311:130.06:286:57New Moon6Sun
7Mon4:170.75:171.610:11-0.36:276:58Waxing Crescent7Mon
8Tue4:560.66:081.612:170.110:44 AM-0.36:266:58Waxing Crescent8Tue
9Wed5:410.47:061.61:310.111:20 AM-0.26:256:58Waxing Crescent9Wed
10Thu6:430.38:141.53:000.112:03-0.16:246:59Waxing Crescent10Thu
11Fri8:340.29:281.44:380.11:060.06:236:59First Quarter11Fri
12Sat10:390.310:391.45:490.02:460.26:236:59First Quarter12Sat
13Sun11:590.511:391.36:320.04:330.26:227:00First Quarter13Sun
14Mon12:500.77:02-0.15:570.26:217:00Waxing Gibbous14Mon
15Tue12:291.21:300.97:27-0.17:030.26:207:01Waxing Gibbous15Tue
16Wed1:101.22:061.07:49-0.17:590.26:197:01Waxing Gibbous16Wed
17Thu1:471.02:401.28:09-0.18:490.26:187:01Waxing Gibbous17Thu
18Fri2:190.93:121.38:29-0.19:350.26:187:02Full Moon18Fri
19Sat2:500.83:441.48:49-0.210:200.26:177:02Full Moon19Sat
20Sun3:190.74:161.59:10-0.211:040.16:167:02Full Moon20Sun
21Mon3:480.64:481.59:33-0.111:500.26:157:03Full Moon21Mon
22Tue4:160.55:241.49:56-0.16:147:03Waning Gibbous22Tue
23Wed4:450.46:031.412:400.210:22 AM-0.16:147:03Waning Gibbous23Wed
24Thu5:160.36:481.31:370.210:49 AM0.06:137:04Waning Gibbous24Thu
25Fri5:590.37:431.32:460.211:21 AM0.06:127:04Waning Gibbous25Fri
26Sat7:300.28:461.24:010.212:030.16:127:05Third Quarter26Sat
27Sun10:030.39:491.25:010.11:230.26:117:05Third Quarter27Sun
28Mon11:250.410:451.25:390.13:250.36:107:05Third Quarter28Mon
29Tue12:120.66:080.05:030.36:107:06Third Quarter29Tue
30Wed12:510.86:34-0.16:210.36:097:06Waning Crescent30Wed
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 1:25 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 97% 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 Full Moon (97% 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