Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 5h 42m at 4:22 am (0.0 ft)
Next high tide : 11:40 am (1.2 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 - Aug 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:000.62:561.97:280.010:160.26:137:20Full Moon1Sat
2Sun2:480.63:351.98:130.010:470.26:147:19Full Moon2Sun
3Mon3:320.74:111.88:560.011:170.26:147:19Full Moon3Mon
4Tue4:130.74:461.79:380.111:460.26:157:18Full Moon4Tue
5Wed4:550.85:181.610:190.16:157:18Waning Gibbous5Wed
6Thu5:380.85:491.512:150.211:01 AM0.26:157:17Waning Gibbous6Thu
7Fri6:260.96:181.412:440.211:46 AM0.46:167:17Waning Gibbous7Fri
8Sat7:200.96:471.21:150.212:390.56:167:16Waning Gibbous8Sat
9Sun8:241.07:161.01:480.21:510.66:167:15Third Quarter9Sun
10Mon9:371.17:510.92:240.23:310.76:177:15Third Quarter10Mon
11Tue10:461.28:510.73:060.25:290.76:177:14Third Quarter11Tue
12Wed11:441.310:340.63:530.27:060.66:187:13Third Quarter12Wed
13Thu12:321.54:440.28:000.56:187:12Waning Crescent13Thu
14Fri1:141.65:350.18:380.46:187:12Waning Crescent14Fri
15Sat12:550.61:541.76:250.19:120.36:197:11Waning Crescent15Sat
16Sun1:430.62:331.87:130.09:440.26:197:10Waning Crescent16Sun
17Mon2:280.73:121.98:000.010:170.26:197:09New Moon17Mon
18Tue3:130.83:501.98:460.010:490.16:207:09New Moon18Tue
19Wed3:580.94:281.89:340.011:220.16:207:08New Moon19Wed
20Thu4:471.05:061.710:250.111:550.16:207:07Waxing Crescent20Thu
21Fri5:401.15:441.611:210.26:217:06Waxing Crescent21Fri
22Sat6:381.26:241.312:300.112:250.46:217:05Waxing Crescent22Sat
23Sun7:441.37:071.11:060.11:450.56:217:05Waxing Crescent23Sun
24Mon8:581.48:000.91:460.13:280.66:217:04First Quarter24Mon
25Tue10:141.59:210.72:330.25:300.66:227:03First Quarter25Tue
26Wed11:231.611:010.63:300.27:090.56:227:02First Quarter26Wed
27Thu12:221.74:350.28:040.46:227:01Waxing Gibbous27Thu
28Fri12:200.61:121.85:390.28:410.36:237:00Waxing Gibbous28Fri
29Sat1:170.71:551.86:370.19:110.26:236:59Waxing Gibbous29Sat
30Sun2:030.72:341.87:270.19:370.26:236:58Waxing Gibbous30Sun
31Mon2:420.83:101.78:120.110:010.26:246:57Full Moon31Mon
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 8:01 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