Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 5h 36m at 3:09 am (0.0 ft)
Next high tide : 9:24 am (0.8 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 - Jan 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:281.84:270.511:450.09:50-0.27:196:09Full Moon1Mon
2Tue5:061.85:200.612:200.07:206:10Waning Gibbous2Tue
3Wed5:431.76:190.712:560.07:206:11Waning Gibbous3Wed
4Thu6:211.57:270.81:330.07:206:11Waning Gibbous4Thu
5Fri7:011.38:450.912:350.32:11-0.17:206:12Third Quarter5Fri
6Sat7:431.110:051.12:020.52:53-0.17:216:13Third Quarter6Sat
7Sun8:340.911:161.33:580.63:38-0.17:216:13Third Quarter7Sun
8Mon9:450.66:060.54:27-0.17:216:14Third Quarter8Mon
9Tue12:161.511:12 AM0.57:460.45:19-0.17:216:15Waning Crescent9Tue
10Wed1:071.612:290.48:450.36:11-0.27:216:15Waning Crescent10Wed
11Thu1:531.71:310.49:260.27:02-0.27:216:16Waning Crescent11Thu
12Fri2:351.82:220.510:000.17:49-0.27:216:17New Moon12Fri
13Sat3:141.83:080.510:300.18:33-0.27:216:17New Moon13Sat
14Sun3:501.73:500.610:580.09:15-0.17:216:18New Moon14Sun
15Mon4:251.74:310.611:260.09:56-0.17:216:19New Moon15Mon
16Tue4:561.65:130.711:530.010:360.07:216:19Waxing Crescent16Tue
17Wed5:261.55:570.712:210.07:216:20Waxing Crescent17Wed
18Thu5:531.36:460.812:490.07:216:21Waxing Crescent18Thu
19Fri6:191.17:430.812:030.31:190.07:216:22Waxing Crescent19Fri
20Sat6:421.08:520.91:000.41:510.07:216:22First Quarter20Sat
21Sun7:030.810:091.02:230.62:280.07:216:23First Quarter21Sun
22Mon7:230.611:181.14:270.63:120.07:216:24First Quarter22Mon
23Tue4:050.07:216:24First Quarter23Tue
24Wed12:121.210:51 AM0.48:160.45:010.07:206:25Waxing Gibbous24Wed
25Thu12:571.412:170.48:400.35:55-0.17:206:26Waxing Gibbous25Thu
26Fri1:381.51:140.49:060.26:45-0.27:206:26Waxing Gibbous26Fri
27Sat2:161.62:020.59:340.17:33-0.27:206:27Waxing Gibbous27Sat
28Sun2:531.72:470.510:020.08:20-0.37:196:28Full Moon28Sun
29Mon3:291.73:320.610:320.09:06-0.27:196:28Full Moon29Mon
30Tue4:051.74:190.711:02-0.19:55-0.27:196:29Full Moon30Tue
31Wed4:411.65:080.911:32-0.110:46-0.17:186:29Waning Gibbous31Wed
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 6:16 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 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