Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 4h 21m at 12:39 pm (0.3 ft)
Next high tide : 7:42 pm (1.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Feb 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:240.98:390.91:070.41:280.07:186:30First Quarter1Tue
2Wed6:450.79:581.12:450.52:040.07:186:30First Quarter2Wed
3Thu11:111.22:530.07:186:31First Quarter3Thu
4Fri3:560.07:176:31First Quarter4Fri
5Sat12:111.411:23 AM0.38:150.35:05-0.17:176:32Waxing Gibbous5Sat
6Sun1:011.512:420.38:410.16:09-0.27:166:33Waxing Gibbous6Sun
7Mon1:461.71:390.49:100.07:07-0.37:166:33Waxing Gibbous7Mon
8Tue2:281.82:290.59:390.08:01-0.37:156:34Waxing Gibbous8Tue
9Wed3:081.83:170.710:10-0.18:54-0.37:156:34Full Moon9Wed
10Thu3:471.84:050.810:40-0.29:46-0.27:146:35Full Moon10Thu
11Fri4:251.64:551.011:11-0.210:39-0.17:146:36Full Moon11Fri
12Sat5:021.55:461.111:41-0.211:360.17:136:36Waning Gibbous12Sat
13Sun5:371.26:421.112:13-0.27:136:37Waning Gibbous13Sun
14Mon6:121.07:441.212:400.212:45-0.27:126:37Waning Gibbous14Mon
15Tue6:460.88:551.22:000.41:21-0.17:116:38Third Quarter15Tue
16Wed7:200.510:141.33:540.42:040.07:116:38Third Quarter16Wed
17Thu11:281.33:040.07:106:39Third Quarter17Thu
18Fri11:080.38:080.24:220.07:096:39Third Quarter18Fri
19Sat12:281.412:320.38:340.15:360.07:096:40Waning Crescent19Sat
20Sun1:161.41:240.48:550.16:360.07:086:40Waning Crescent20Sun
21Mon1:561.42:020.59:120.17:25-0.17:076:41Waning Crescent21Mon
22Tue2:301.42:360.69:290.08:07-0.17:076:41Waning Crescent22Tue
23Wed3:011.43:080.79:470.08:46-0.17:066:42New Moon23Wed
24Thu3:291.43:400.810:070.09:240.07:056:42New Moon24Thu
25Fri3:541.34:120.910:270.010:010.07:046:43New Moon25Fri
26Sat4:181.24:450.910:48-0.110:400.17:046:43New Moon26Sat
27Sun4:411.15:201.011:09-0.111:220.27:036:44Waxing Crescent27Sun
28Mon5:041.05:591.111:30-0.17:026:44Waxing Crescent28Mon
29Tue5:250.86:451.112:120.311:52 AM-0.17:016:44Waxing Crescent29Tue
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 4:10 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 transitional phase. Tonight's moon is 29% 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 shifting between spring and neap.

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 (29% illuminated). This places Nonopapa, Niihau Island, HI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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