Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 5:22 am (0.1 ft)
Next high tide (tomorrow) : in 19m at 11:39 pm (0.5 ft)
Sunset today : 7:24 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:041.28:101.02:120.12:510.66:137:20First Quarter1Sat
2Sun10:171.39:120.92:590.14:340.66:147:20First Quarter2Sun
3Mon11:231.410:290.73:490.26:200.66:147:19First Quarter3Mon
4Tue12:181.54:420.27:350.56:157:19Waxing Gibbous4Tue
5Wed1:041.55:330.28:190.46:157:18Waxing Gibbous5Wed
6Thu12:410.71:441.66:210.18:520.46:157:17Waxing Gibbous6Thu
7Fri1:290.72:201.67:040.19:190.36:167:17Waxing Gibbous7Fri
8Sat2:090.72:531.67:450.19:460.36:167:16Waxing Gibbous8Sat
9Sun2:460.83:241.68:230.110:130.26:167:16Full Moon9Sun
10Mon3:220.83:541.69:000.110:410.26:177:15Full Moon10Mon
11Tue3:580.94:231.69:360.111:090.26:177:14Full Moon11Tue
12Wed4:350.94:521.510:140.211:380.26:187:13Full Moon12Wed
13Thu5:141.05:201.410:530.36:187:13Waning Gibbous13Thu
14Fri5:581.05:501.312:070.211:38 AM0.46:187:12Waning Gibbous14Fri
15Sat6:501.16:231.212:390.212:340.56:197:11Waning Gibbous15Sat
16Sun7:531.17:021.01:140.21:510.66:197:11Third Quarter16Sun
17Mon9:071.27:570.91:560.23:330.66:197:10Third Quarter17Mon
18Tue10:221.39:240.82:480.25:180.66:207:09Third Quarter18Tue
19Wed11:281.510:590.73:500.16:370.56:207:08Third Quarter19Wed
20Thu12:231.64:550.17:320.46:207:07Waning Crescent20Thu
21Fri12:130.71:131.85:560.08:160.36:217:07Waning Crescent21Fri
22Sat1:130.81:591.86:540.08:550.26:217:06Waning Crescent22Sat
23Sun2:060.92:421.97:480.09:320.16:217:05New Moon23Sun
24Mon2:561.03:241.88:410.010:080.16:217:04New Moon24Mon
25Tue3:441.14:051.89:320.010:430.16:227:03New Moon25Tue
26Wed4:331.24:441.610:240.111:180.16:227:02New Moon26Wed
27Thu5:221.35:231.411:170.211:540.16:227:01Waxing Crescent27Thu
28Fri6:131.36:031.312:140.46:237:01Waxing Crescent28Fri
29Sat7:101.36:441.112:300.11:190.56:237:00Waxing Crescent29Sat
30Sun8:131.37:340.91:100.22:390.66:236:59First Quarter30Sun
31Mon9:241.38:460.81:560.34:170.66:236:58First Quarter31Mon
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 2:30 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 73% 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 Waxing Gibbous (73% 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