Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 5h 16m at 3:48 am (0.1 ft)
Next high tide : 11:53 am (1.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Feb 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:311.72:270.69:330.08:05-0.37:186:30Waning Crescent1Wed
2Thu3:111.83:160.710:07-0.18:56-0.37:186:30New Moon2Thu
3Fri3:511.84:040.810:41-0.19:47-0.27:176:31New Moon3Fri
4Sat4:301.74:540.911:15-0.210:39-0.17:176:32New Moon4Sat
5Sun5:081.55:471.011:50-0.211:350.07:166:32Waxing Crescent5Sun
6Mon5:471.36:451.112:26-0.27:166:33Waxing Crescent6Mon
7Tue6:261.17:491.112:380.21:04-0.17:166:33Waxing Crescent7Tue
8Wed7:080.99:041.21:560.41:46-0.17:156:34First Quarter8Wed
9Thu8:000.610:221.23:410.42:36-0.17:156:35First Quarter9Thu
10Fri9:270.511:341.35:580.43:370.07:146:35First Quarter10Fri
11Sat11:100.47:330.34:450.07:136:36First Quarter11Sat
12Sun12:321.412:270.48:170.25:500.07:136:36Waxing Gibbous12Sun
13Mon1:191.41:210.58:470.16:450.07:126:37Waxing Gibbous13Mon
14Tue1:591.42:030.69:100.17:32-0.17:126:37Waxing Gibbous14Tue
15Wed2:341.42:400.69:320.08:13-0.17:116:38Waxing Gibbous15Wed
16Thu3:051.43:140.79:530.08:52-0.17:106:38Full Moon16Thu
17Fri3:341.43:470.810:140.09:30-0.17:106:39Full Moon17Fri
18Sat4:011.34:210.910:370.010:070.07:096:39Full Moon18Sat
19Sun4:271.24:550.911:000.010:460.17:086:40Full Moon19Sun
20Mon4:521.15:311.011:24-0.111:270.17:086:40Waning Gibbous20Mon
21Tue5:161.06:111.011:480.07:076:41Waning Gibbous21Tue
22Wed5:400.96:591.012:140.212:140.07:066:41Waning Gibbous22Wed
23Thu6:060.78:001.01:140.312:440.07:066:42Waning Gibbous23Thu
24Fri6:360.69:171.12:390.41:230.07:056:42Third Quarter24Fri
25Sat7:240.510:361.24:330.42:200.07:046:43Third Quarter25Sat
26Sun9:300.411:411.36:160.33:380.07:036:43Third Quarter26Sun
27Mon11:280.47:110.24:590.07:026:44Third Quarter27Mon
28Tue12:341.412:370.57:480.16:08-0.17:026:44Waning Crescent28Tue
29Wed1:201.51:300.68:200.07:08-0.27:016:44Waning Crescent29Wed
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 7:50 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 neap phase. Tonight's moon is 55% 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 First Quarter (55% 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