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 1h 06m at 3:40 pm (0.6 ft)
Next high tide : 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 - Oct 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:061.64:011.110:300.310:020.06:326:28Full Moon1Wed
2Thu4:471.64:371.011:220.310:320.16:326:27Waning Gibbous2Thu
3Fri5:291.65:140.912:160.46:326:26Waning Gibbous3Fri
4Sat6:141.65:550.71:160.46:336:25Waning Gibbous4Sat
5Sun7:051.56:480.62:270.56:336:25Waning Gibbous5Sun
6Mon8:041.48:200.612:180.33:490.56:336:24Third Quarter6Mon
7Tue9:121.410:120.61:150.45:050.46:346:23Third Quarter7Tue
8Wed10:201.311:290.72:400.55:550.46:346:22Third Quarter8Wed
9Thu11:171.34:110.56:280.36:346:21Third Quarter9Thu
10Fri12:180.812:031.35:240.46:560.36:356:20Waning Crescent10Fri
11Sat12:560.912:421.36:220.47:210.26:356:19Waning Crescent11Sat
12Sun1:301.11:181.37:130.47:460.26:356:18Waning Crescent12Sun
13Mon2:021.21:511.28:000.38:100.16:366:17Waning Crescent13Mon
14Tue2:351.42:231.28:460.38:350.16:366:17New Moon14Tue
15Wed3:091.52:571.19:320.39:010.06:376:16New Moon15Wed
16Thu3:461.63:311.010:200.39:290.06:376:15New Moon16Thu
17Fri4:251.74:080.911:120.39:590.06:376:14New Moon17Fri
18Sat5:091.74:480.812:080.36:386:13Waxing Crescent18Sat
19Sun5:571.75:360.71:120.36:386:13Waxing Crescent19Sun
20Mon6:521.76:430.62:240.36:396:12Waxing Crescent20Mon
21Tue7:551.68:230.612:030.23:380.36:396:11First Quarter21Tue
22Wed9:041.610:090.71:140.34:420.36:396:10First Quarter22Wed
23Thu10:111.511:260.82:540.45:320.26:406:10First Quarter23Thu
24Fri11:121.54:340.46:110.16:406:09First Quarter24Fri
25Sat12:231.112:051.45:560.46:460.16:416:08Waxing Gibbous25Sat
26Sun1:091.312:521.37:040.47:170.06:416:08Waxing Gibbous26Sun
27Mon1:511.51:351.28:040.37:470.06:426:07Waxing Gibbous27Mon
28Tue2:311.62:161.18:580.38:170.06:426:06Full Moon28Tue
29Wed3:091.72:551.09:480.38:460.06:436:06Full Moon29Wed
30Thu3:471.83:330.910:360.39:170.06:436:05Full Moon30Thu
31Fri4:251.84:110.811:230.39:470.06:446:04Full Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1610367)

Common Questions About Nonopapa, Niihau Island, HI Tides

Show All
What time does the tide turn (slack tide) in Nonopapa, Niihau Island, HI today?

Slack tide in Nonopapa, Niihau Island, HI is approximately 6:26 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 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