Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 12:46 pm (0.5 ft)
Next high tide : in 47m at 8:11 am (0.7 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 - Oct 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:121.23:161.49:050.39:380.26:326:28Full Moon1Mon
2Tue3:431.23:431.39:460.310:000.16:326:27Full Moon2Tue
3Wed4:161.34:101.210:280.310:220.16:326:26Full Moon3Wed
4Thu4:501.44:371.111:150.410:450.16:336:25Waning Gibbous4Thu
5Fri5:291.45:060.912:090.46:336:24Waning Gibbous5Fri
6Sat6:141.55:390.81:170.56:336:23Waning Gibbous6Sat
7Sun7:101.56:240.62:450.56:346:22Waning Gibbous7Sun
8Mon8:191.57:590.512:170.24:270.46:346:22Third Quarter8Mon
9Tue9:361.510:180.51:170.35:440.36:346:21Third Quarter9Tue
10Wed10:471.611:400.62:510.36:310.36:356:20Third Quarter10Wed
11Thu11:471.64:290.37:070.26:356:19Waning Crescent11Thu
12Fri12:360.812:381.75:470.37:380.16:366:18Waning Crescent12Fri
13Sat1:221.01:231.66:530.28:090.06:366:17Waning Crescent13Sat
14Sun2:061.22:061.67:520.28:380.06:366:16Waning Crescent14Sun
15Mon2:481.42:461.58:480.29:080.06:376:16New Moon15Mon
16Tue3:311.63:251.39:430.29:370.06:376:15New Moon16Tue
17Wed4:141.74:041.110:390.210:060.06:376:14New Moon17Wed
18Thu4:571.74:430.911:370.310:350.06:386:13Waxing Crescent18Thu
19Fri5:421.75:240.812:390.36:386:12Waxing Crescent19Fri
20Sat6:311.76:120.61:500.46:396:12Waxing Crescent20Sat
21Sun7:261.67:260.53:140.46:396:11Waxing Crescent21Sun
22Mon8:291.59:280.512:140.34:430.36:406:10First Quarter22Mon
23Tue9:381.411:170.61:150.45:460.36:406:09First Quarter23Tue
24Wed10:431.43:010.56:240.26:406:09First Quarter24Wed
25Thu12:140.711:38 AM1.44:380.56:510.26:416:08First Quarter25Thu
26Fri12:510.812:221.35:500.57:150.26:416:07Waxing Gibbous26Fri
27Sat1:221.01:001.36:460.47:380.16:426:07Waxing Gibbous27Sat
28Sun1:521.11:341.37:340.48:000.16:426:06Waxing Gibbous28Sun
29Mon2:221.22:051.28:190.38:230.16:436:05Waxing Gibbous29Mon
30Tue2:521.42:351.19:030.38:450.06:436:05Full Moon30Tue
31Wed3:231.53:051.09:480.39:080.06:446:04Full Moon31Wed
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 10:28 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 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