Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 2h 42m at 3:47 am (0.0 ft)
Next high tide : 10:39 am (0.9 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 - Nov 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:441.610:020.71:010.34:250.26:446:04First Quarter1Fri
2Sat9:491.511:210.82:370.45:140.16:456:03First Quarter2Sat
3Sun10:491.44:190.55:530.16:456:03First Quarter3Sun
4Mon12:171.111:43 AM1.35:470.56:250.16:466:02Waxing Gibbous4Mon
5Tue1:011.212:301.16:580.56:540.06:466:02Waxing Gibbous5Tue
6Wed1:401.41:111.07:570.47:200.06:476:01Waxing Gibbous6Wed
7Thu2:151.51:500.98:490.47:460.06:486:01Waxing Gibbous7Thu
8Fri2:491.62:250.89:340.38:130.06:486:00Full Moon8Fri
9Sat3:221.73:000.810:170.38:400.06:496:00Full Moon9Sat
10Sun3:551.73:340.710:580.39:090.06:495:59Full Moon10Sun
11Mon4:291.74:090.611:390.39:390.06:505:59Full Moon11Mon
12Tue5:041.64:460.612:230.36:515:59Waning Gibbous12Tue
13Wed5:411.65:290.51:110.36:515:58Waning Gibbous13Wed
14Thu6:211.56:260.52:030.36:525:58Waning Gibbous14Thu
15Fri7:051.47:540.52:570.36:525:58Waning Gibbous15Fri
16Sat7:531.49:360.612:080.43:460.26:535:58Third Quarter16Sat
17Sun8:471.310:530.71:260.54:290.26:545:57Third Quarter17Sun
18Mon9:431.211:440.93:150.65:040.16:545:57Third Quarter18Mon
19Tue10:381.14:540.65:370.16:555:57Third Quarter19Tue
20Wed12:261.211:31 AM1.06:140.56:080.06:565:57Waning Crescent20Wed
21Thu1:061.412:221.07:220.46:41-0.16:565:57Waning Crescent21Thu
22Fri1:461.61:110.98:230.37:15-0.26:575:57Waning Crescent22Fri
23Sat2:271.82:000.89:190.27:52-0.26:585:56New Moon23Sat
24Sun3:101.92:490.710:130.28:32-0.26:585:56New Moon24Sun
25Mon3:552.03:400.611:060.19:15-0.26:595:56New Moon25Mon
26Tue4:412.04:330.611:580.110:00-0.16:595:56Waxing Crescent26Tue
27Wed5:292.05:330.612:510.17:005:56Waxing Crescent27Wed
28Thu6:181.86:440.61:450.17:015:56Waxing Crescent28Thu
29Fri7:081.78:070.62:380.17:015:56Waxing Crescent29Fri
30Sat8:021.59:370.812:500.33:280.17:025:56First Quarter30Sat
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 7:13 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