Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : 4:22 am (0.0 ft)
Next high tide : in 4h 21m at 9:13 pm (1.1 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : First Quarter (50% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Dec 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:171.75:170.512:370.27:035:56Waning Gibbous1Mon
2Tue5:531.66:090.51:180.27:035:57Waning Gibbous2Tue
3Wed6:301.57:140.52:020.27:045:57Waning Gibbous3Wed
4Thu7:081.48:380.62:470.27:055:57Waning Gibbous4Thu
5Fri7:501.210:040.712:470.43:310.27:055:57Third Quarter5Fri
6Sat8:381.111:100.92:160.64:120.17:065:57Third Quarter6Sat
7Sun9:321.011:581.14:020.64:490.17:075:57Third Quarter7Sun
8Mon10:300.95:360.65:240.07:075:58Third Quarter8Mon
9Tue12:381.211:28 AM0.86:520.55:590.07:085:58Waning Crescent9Tue
10Wed1:161.412:230.77:540.46:34-0.17:085:58Waning Crescent10Wed
11Thu1:541.61:150.78:470.37:12-0.27:095:59Waning Crescent11Thu
12Fri2:341.82:060.69:360.27:52-0.27:105:59New Moon12Fri
13Sat3:151.92:560.610:230.18:34-0.27:105:59New Moon13Sat
14Sun3:581.93:470.611:090.19:19-0.27:116:00New Moon14Sun
15Mon4:411.94:410.611:540.010:06-0.17:116:00New Moon15Mon
16Tue5:251.95:400.612:400.07:126:00Waxing Crescent16Tue
17Wed6:101.86:470.71:260.07:136:01Waxing Crescent17Wed
18Thu6:571.68:060.82:130.07:136:01Waxing Crescent18Thu
19Fri7:461.49:300.91:050.33:000.07:146:02First Quarter19Fri
20Sat8:401.210:471.12:380.53:470.07:146:02First Quarter20Sat
21Sun9:411.011:511.34:280.64:320.07:156:03First Quarter21Sun
22Mon10:460.86:160.55:15-0.17:156:03Waxing Gibbous22Mon
23Tue12:421.411:50 AM0.77:410.45:56-0.17:166:04Waxing Gibbous23Tue
24Wed1:261.612:480.68:410.36:36-0.17:166:04Waxing Gibbous24Wed
25Thu2:051.61:380.69:240.37:14-0.17:166:05Waxing Gibbous25Thu
26Fri2:411.72:220.510:000.27:52-0.17:176:05Full Moon26Fri
27Sat3:161.73:030.510:310.28:29-0.17:176:06Full Moon27Sat
28Sun3:491.73:410.511:010.19:06-0.17:186:06Full Moon28Sun
29Mon4:221.64:200.611:300.19:410.07:186:07Full Moon29Mon
30Tue4:531.64:590.612:010.17:186:08Waning Gibbous30Tue
31Wed5:231.55:420.612:330.17:196:08Waning 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 12:47 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 neap phase. Tonight's moon is 50% 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 minimum.

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 First Quarter (50% illuminated). This places Nonopapa, Niihau Island, HI in a neap tide cycle, so tidal ranges are near their weekly minimum 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