Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 3h 17m at 12:46 pm (0.5 ft)
Next high tide : 7:20 pm (1.3 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (70% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:520.62:471.87:180.010:060.36:137:20Waxing Gibbous1Wed
2Thu2:340.63:221.77:590.010:330.36:147:20Full Moon2Thu
3Fri3:120.63:551.78:380.010:590.26:147:19Full Moon3Fri
4Sat3:490.74:261.79:150.111:260.26:147:19Full Moon4Sat
5Sun4:250.74:561.69:520.111:550.26:157:18Full Moon5Sun
6Mon5:040.85:251.610:290.26:157:17Waning Gibbous6Mon
7Tue5:460.85:531.412:240.211:08 AM0.36:167:17Waning Gibbous7Tue
8Wed6:340.96:211.312:540.211:53 AM0.46:167:16Waning Gibbous8Wed
9Thu7:310.96:511.21:250.212:510.56:167:15Waning Gibbous9Thu
10Fri8:411.07:261.01:590.22:160.76:177:15Third Quarter10Fri
11Sat9:551.18:140.92:370.24:100.76:177:14Third Quarter11Sat
12Sun11:021.39:350.73:210.26:010.66:177:13Third Quarter12Sun
13Mon11:591.511:110.64:130.17:200.56:187:13Third Quarter13Mon
14Tue12:491.75:080.18:120.46:187:12Waning Crescent14Tue
15Wed12:250.61:361.86:040.08:540.36:187:11Waning Crescent15Wed
16Thu1:250.72:201.96:59-0.19:320.26:197:10Waning Crescent16Thu
17Fri2:180.73:042.07:51-0.110:090.16:197:10New Moon17Fri
18Sat3:080.83:462.08:43-0.110:450.16:197:09New Moon18Sat
19Sun3:580.94:271.99:350.011:200.16:207:08New Moon19Sun
20Mon4:491.05:081.810:290.111:560.16:207:07Waxing Crescent20Mon
21Tue5:431.15:481.611:250.26:207:06Waxing Crescent21Tue
22Wed6:411.26:291.312:320.112:280.46:217:06Waxing Crescent22Wed
23Thu7:451.37:121.11:090.11:440.56:217:05Waxing Crescent23Thu
24Fri8:571.38:040.91:490.23:210.66:217:04First Quarter24Fri
25Sat10:111.49:210.72:340.25:230.66:227:03First Quarter25Sat
26Sun11:191.510:560.63:280.27:070.56:227:02First Quarter26Sun
27Mon12:161.64:290.38:010.46:227:01Waxing Gibbous27Mon
28Tue12:140.61:041.65:300.28:340.36:227:00Waxing Gibbous28Tue
29Wed1:080.71:451.66:240.29:000.36:237:00Waxing Gibbous29Wed
30Thu1:500.72:211.77:120.29:230.36:236:59Waxing Gibbous30Thu
31Fri2:250.82:541.67:540.19:460.36:236:58Full Moon31Fri
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 4:03 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 Waning 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