Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 3h 05m at 7:20 pm (0.6 ft)
Next high tide : 10:58 pm (0.7 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (70% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:361.44:590.27:410.56:137:20Waxing Gibbous1Tue
2Wed1:171.55:450.18:240.46:147:20Waxing Gibbous2Wed
3Thu12:450.71:541.66:290.18:590.46:147:19Waxing Gibbous3Thu
4Fri1:320.72:281.67:100.19:300.36:147:19Waxing Gibbous4Fri
5Sat2:130.73:021.77:480.110:000.36:157:18Full Moon5Sat
6Sun2:510.73:341.78:260.010:300.26:157:17Full Moon6Sun
7Mon3:280.84:061.79:040.111:010.26:167:17Full Moon7Mon
8Tue4:070.84:381.79:420.111:320.26:167:16Full Moon8Tue
9Wed4:480.95:101.610:220.26:167:15Waning Gibbous9Wed
10Thu5:340.95:431.512:040.211:07 AM0.26:177:15Waning Gibbous10Thu
11Fri6:271.06:191.412:370.112:000.46:177:14Waning Gibbous11Fri
12Sat7:301.16:591.21:130.11:090.56:177:13Waning Gibbous12Sat
13Sun8:431.27:491.01:540.12:420.66:187:13Third Quarter13Sun
14Mon10:001.38:590.92:420.14:330.66:187:12Third Quarter14Mon
15Tue11:101.510:280.83:370.16:120.56:187:11Third Quarter15Tue
16Wed12:101.64:370.17:230.46:197:10Waning Crescent16Wed
17Thu1:021.85:370.08:130.36:197:10Waning Crescent17Thu
18Fri12:550.71:491.96:340.08:550.26:197:09Waning Crescent18Fri
19Sat1:500.82:331.97:270.09:330.26:207:08Waning Crescent19Sat
20Sun2:400.93:141.98:180.010:080.16:207:07New Moon20Sun
21Mon3:271.03:541.89:060.010:410.16:207:06New Moon21Mon
22Tue4:131.04:321.79:540.111:140.16:217:06New Moon22Tue
23Wed4:581.15:081.610:410.211:460.16:217:05Waxing Crescent23Wed
24Thu5:451.15:431.411:300.36:217:04Waxing Crescent24Thu
25Fri6:341.26:171.212:180.212:240.46:227:03Waxing Crescent25Fri
26Sat7:301.26:531.012:520.21:270.56:227:02Waxing Crescent26Sat
27Sun8:351.27:360.91:300.32:480.66:227:01First Quarter27Sun
28Mon9:471.28:450.72:140.34:280.66:237:00First Quarter28Mon
29Tue10:551.310:240.73:090.36:080.66:236:59First Quarter29Tue
30Wed11:521.411:430.74:120.37:090.56:236:59First Quarter30Wed
31Thu12:391.45:130.37:470.46:236:58Waxing Gibbous31Thu
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 9:09 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 70% 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 Gibbous (70% 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