Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : in 2h 16m at 9:46 pm (0.2 ft)
Next high tide : 1:40 am (0.5 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Feb 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:541.52:460.59:590.18:16-0.17:196:30New Moon1Sat
2Sun3:241.53:210.610:200.18:54-0.17:186:30New Moon2Sun
3Mon3:531.53:550.710:430.09:30-0.17:186:31New Moon3Mon
4Tue4:201.44:300.711:060.010:060.07:176:31New Moon4Tue
5Wed4:451.45:060.811:300.010:440.17:176:32Waxing Crescent5Wed
6Thu5:091.35:460.911:540.011:260.27:166:33Waxing Crescent6Thu
7Fri5:331.16:320.912:190.07:166:33Waxing Crescent7Fri
8Sat5:581.07:281.012:170.312:460.07:156:34Waxing Crescent8Sat
9Sun6:230.88:391.01:270.41:180.07:156:34First Quarter9Sun
10Mon6:530.610:011.13:150.52:010.07:146:35First Quarter10Mon
11Tue7:380.511:151.35:370.43:00-0.17:146:35First Quarter11Tue
12Wed10:090.47:190.34:14-0.17:136:36First Quarter12Wed
13Thu12:151.411:56 AM0.47:590.25:27-0.17:136:37Waxing Gibbous13Thu
14Fri1:061.61:030.48:320.16:32-0.27:126:37Waxing Gibbous14Fri
15Sat1:521.71:570.69:030.07:30-0.27:126:38Waxing Gibbous15Sat
16Sun2:351.72:470.79:34-0.18:25-0.37:116:38Full Moon16Sun
17Mon3:151.73:340.910:05-0.29:18-0.27:106:39Full Moon17Mon
18Tue3:541.64:211.010:36-0.210:10-0.17:106:39Full Moon18Tue
19Wed4:311.55:091.111:06-0.211:030.07:096:40Full Moon19Wed
20Thu5:071.35:581.211:37-0.211:590.17:086:40Waning Gibbous20Thu
21Fri5:411.16:511.212:08-0.27:086:41Waning Gibbous21Fri
22Sat6:150.87:521.21:030.312:40-0.17:076:41Waning Gibbous22Sat
23Sun6:480.69:021.22:240.41:170.07:066:42Third Quarter23Sun
24Mon7:250.510:201.24:210.42:040.07:056:42Third Quarter24Mon
25Tue9:280.311:321.27:180.33:130.17:056:43Third Quarter25Tue
26Wed11:310.37:550.24:360.17:046:43Third Quarter26Wed
27Thu12:281.312:390.48:160.25:470.17:036:43Waning Crescent27Thu
28Fri1:131.31:230.58:340.16:430.07:026:44Waning Crescent28Fri
29Sat1:511.31:590.68:510.17:290.07:016:44Waning Crescent29Sat
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 11:43 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 Waning 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