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 6h 43m 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 - Dec 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:311.73:020.510:510.28:34-0.17:035:57Full Moon1Fri
2Sat4:071.83:430.511:340.29:10-0.17:045:57Full Moon2Sat
3Sun4:461.84:280.512:190.27:045:57Full Moon3Sun
4Mon5:271.85:210.51:050.17:055:57Waning Gibbous4Mon
5Tue6:101.76:280.51:510.17:065:57Waning Gibbous5Tue
6Wed6:541.67:530.62:350.17:065:57Waning Gibbous6Wed
7Thu7:421.59:240.712:220.33:180.17:075:58Third Quarter7Thu
8Fri8:331.310:420.91:530.53:580.07:085:58Third Quarter8Fri
9Sat9:281.111:431.23:470.64:370.07:085:58Third Quarter9Sat
10Sun10:281.05:370.65:14-0.17:095:58Third Quarter10Sun
11Mon12:341.511:30 AM0.87:100.55:52-0.17:095:59Waning Crescent11Mon
12Tue1:201.712:310.78:230.46:31-0.27:105:59Waning Crescent12Tue
13Wed2:031.81:270.69:210.37:11-0.27:115:59Waning Crescent13Wed
14Thu2:461.92:200.510:100.27:52-0.27:116:00New Moon14Thu
15Fri3:272.03:090.510:530.18:34-0.27:126:00New Moon15Fri
16Sat4:081.93:570.511:330.19:16-0.17:126:01New Moon16Sat
17Sun4:481.94:440.512:110.17:136:01Waxing Crescent17Sun
18Mon5:261.85:340.512:480.17:136:02Waxing Crescent18Mon
19Tue6:031.66:300.51:240.17:146:02Waxing Crescent19Tue
20Wed6:391.57:360.62:010.17:146:02Waxing Crescent20Wed
21Thu7:141.38:550.712:110.32:380.17:156:03First Quarter21Thu
22Fri7:491.110:150.81:180.53:150.17:156:03First Quarter22Fri
23Sat8:271.011:211.02:550.63:520.17:166:04First Quarter23Sat
24Sun9:140.84:530.74:290.17:166:05First Quarter24Sun
25Mon12:091.110:18 AM0.76:440.65:060.07:176:05First Quarter25Mon
26Tue12:501.311:30 AM0.68:020.55:440.07:176:06Waxing Gibbous26Tue
27Wed1:271.412:320.58:510.46:22-0.17:186:06Waxing Gibbous27Wed
28Thu2:031.61:240.59:290.37:02-0.17:186:07Waxing Gibbous28Thu
29Fri2:391.72:110.410:050.27:42-0.27:186:07Full Moon29Fri
30Sat3:161.82:560.410:400.18:23-0.27:196:08Full Moon30Sat
31Sun3:531.83:400.511:150.19:07-0.27:196:09Full Moon31Sun
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