Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : 12:39 am (0.1 ft)
Next high tide : in 4h 37m at 5:13 pm (1.7 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:01 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Oct 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:471.77:130.54:020.46:326:28Third Quarter1Mon
2Tue9:021.79:320.412:360.25:480.36:326:27Third Quarter2Tue
3Wed10:181.611:230.51:530.36:390.36:326:27Third Quarter3Wed
4Thu11:241.63:400.47:120.26:336:26Third Quarter4Thu
5Fri12:250.712:171.65:110.47:370.26:336:25Waning Crescent5Fri
6Sat1:080.81:011.56:190.37:580.26:336:24Waning Crescent6Sat
7Sun1:441.01:371.57:150.38:160.26:346:23Waning Crescent7Sun
8Mon2:181.22:081.48:030.38:340.16:346:22Waning Crescent8Mon
9Tue2:501.32:371.38:480.38:520.16:346:21New Moon9Tue
10Wed3:211.43:041.19:320.49:100.16:356:20New Moon10Wed
11Thu3:521.53:291.010:160.49:290.16:356:19New Moon11Thu
12Fri4:241.63:540.911:020.49:490.16:356:18New Moon12Fri
13Sat4:571.64:180.811:510.410:090.16:366:18Waxing Crescent13Sat
14Sun5:331.54:430.712:470.46:366:17Waxing Crescent14Sun
15Mon6:161.55:090.61:590.56:366:16Waxing Crescent15Mon
16Tue7:091.55:430.53:320.46:376:15Waxing Crescent16Tue
17Wed8:171.47:590.45:070.46:376:14First Quarter17Wed
18Thu9:291.410:450.512:210.35:500.36:386:14First Quarter18Thu
19Fri10:331.511:460.62:150.46:170.26:386:13First Quarter19Fri
20Sat11:251.54:100.46:420.26:386:12First Quarter20Sat
21Sun12:280.812:111.55:320.47:050.16:396:11Waxing Gibbous21Sun
22Mon1:071.012:521.46:400.47:300.06:396:10Waxing Gibbous22Mon
23Tue1:461.31:321.37:420.37:550.06:406:10Waxing Gibbous23Tue
24Wed2:261.52:121.28:420.38:22-0.16:406:09Full Moon24Wed
25Thu3:081.72:521.09:420.38:52-0.16:416:08Full Moon25Thu
26Fri3:521.93:330.910:430.39:23-0.16:416:08Full Moon26Fri
27Sat4:382.04:170.711:470.39:57-0.16:426:07Waning Gibbous27Sat
28Sun5:272.05:050.612:570.36:426:06Waning Gibbous28Sun
29Mon6:211.96:070.52:150.36:436:06Waning Gibbous29Mon
30Tue7:211.87:430.43:390.36:436:05Waning Gibbous30Tue
31Wed8:271.79:440.512:080.24:500.26:446:05Third Quarter31Wed
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 8:56 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 spring phase. Tonight's moon is 97% 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 maximum.

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 Full Moon (97% illuminated). This places Nonopapa, Niihau Island, HI in a spring tide cycle, so tidal ranges are near their weekly maximum 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