Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 7h 27m at 9:00 pm (0.3 ft)
Next high tide (tomorrow) : 12:32 am (0.5 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Crescent (17% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Feb 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:591.08:571.11:320.41:49-0.17:186:30Third Quarter1Tue
2Wed7:480.810:171.23:110.52:38-0.17:186:30Third Quarter2Wed
3Thu9:030.611:281.45:120.43:38-0.17:186:31Third Quarter3Thu
4Fri10:450.57:000.34:44-0.17:176:32Third Quarter4Fri
5Sat12:281.512:100.58:000.25:48-0.17:176:32Waning Crescent5Sat
6Sun1:181.61:130.58:400.16:46-0.17:166:33Waning Crescent6Sun
7Mon2:021.62:030.69:120.07:37-0.17:166:33Waning Crescent7Mon
8Tue2:421.62:470.79:410.08:23-0.17:156:34New Moon8Tue
9Wed3:181.63:270.710:080.09:05-0.17:156:35New Moon9Wed
10Thu3:511.54:050.810:330.09:46-0.17:146:35New Moon10Thu
11Fri4:221.44:430.910:59-0.110:260.07:146:36New Moon11Fri
12Sat4:511.35:210.911:25-0.111:070.17:136:36Waxing Crescent12Sat
13Sun5:181.26:010.911:52-0.111:510.27:126:37Waxing Crescent13Sun
14Mon5:441.06:460.912:200.07:126:37Waxing Crescent14Mon
15Tue6:080.97:400.912:410.312:500.07:116:38Waxing Crescent15Tue
16Wed6:310.78:491.01:470.41:260.07:116:38First Quarter16Wed
17Thu6:570.610:081.03:230.52:110.17:106:39First Quarter17Thu
18Fri7:450.511:181.15:300.43:120.17:096:39First Quarter18Fri
19Sat10:310.47:060.34:230.07:096:40First Quarter19Sat
20Sun12:131.211:59 AM0.47:430.25:280.07:086:40Waxing Gibbous20Sun
21Mon12:581.312:550.58:120.16:25-0.17:076:41Waxing Gibbous21Mon
22Tue1:381.41:410.68:400.17:16-0.17:066:41Waxing Gibbous22Tue
23Wed2:151.52:230.79:080.08:05-0.27:066:42Waxing Gibbous23Wed
24Thu2:511.53:060.89:37-0.18:53-0.27:056:42Full Moon24Thu
25Fri3:271.53:491.010:06-0.19:42-0.27:046:43Full Moon25Fri
26Sat4:041.44:341.110:36-0.210:33-0.17:036:43Full Moon26Sat
27Sun4:401.35:221.211:08-0.211:280.07:036:44Waning Gibbous27Sun
28Mon5:171.16:141.211:41-0.27:026:44Waning Gibbous28Mon
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 10:46 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 17% 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 (17% 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