Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : in 1h 35m at 8:00 pm (0.5 ft)
Next high tide (tomorrow) : 11:12 pm (0.6 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Crescent (27% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:431.07:421.12:080.21:580.66:147:20Third Quarter1Tue
2Wed9:561.08:250.92:470.23:330.76:147:19Third Quarter2Wed
3Thu11:031.29:290.83:300.25:240.76:147:19Third Quarter3Thu
4Fri11:571.310:510.74:150.26:590.66:157:18Third Quarter4Fri
5Sat12:421.45:020.27:580.56:157:18Waning Crescent5Sat
6Sun12:010.61:221.55:480.18:380.46:167:17Waning Crescent6Sun
7Mon12:570.61:591.66:330.19:120.36:167:16Waning Crescent7Mon
8Tue1:430.62:351.77:150.09:450.36:167:16Waning Crescent8Tue
9Wed2:250.73:101.87:570.010:170.26:177:15New Moon9Wed
10Thu3:060.73:461.88:380.010:490.26:177:14New Moon10Thu
11Fri3:480.84:211.89:210.011:210.16:177:14New Moon11Fri
12Sat4:320.94:571.710:060.111:540.16:187:13New Moon12Sat
13Sun5:210.95:341.610:550.26:187:12Waxing Crescent13Sun
14Mon6:161.06:121.512:280.111:51 AM0.36:187:12Waxing Crescent14Mon
15Tue7:191.16:531.31:040.11:000.56:197:11Waxing Crescent15Tue
16Wed8:311.27:401.11:430.12:290.66:197:10First Quarter16Wed
17Thu9:481.48:450.92:280.14:200.66:197:09First Quarter17Thu
18Fri11:001.510:130.73:210.16:100.56:207:08First Quarter18Fri
19Sat12:021.64:200.17:270.46:207:08Waxing Gibbous19Sat
20Sun12:551.85:210.18:180.36:207:07Waxing Gibbous20Sun
21Mon12:470.71:421.86:190.18:570.36:217:06Waxing Gibbous21Mon
22Tue1:420.72:251.87:120.19:310.26:217:05Waxing Gibbous22Tue
23Wed2:290.83:041.88:010.010:010.26:217:04Full Moon23Wed
24Thu3:120.93:411.88:460.110:300.26:227:03Full Moon24Thu
25Fri3:520.94:161.79:300.110:580.26:227:03Full Moon25Fri
26Sat4:321.04:481.610:120.211:250.26:227:02Full Moon26Sat
27Sun5:121.15:181.410:560.311:530.26:227:01Waning Gibbous27Sun
28Mon5:541.15:481.311:420.46:237:00Waning Gibbous28Mon
29Tue6:411.16:161.112:220.212:350.56:236:59Waning Gibbous29Tue
30Wed7:351.26:461.012:530.31:420.66:236:58Waning Gibbous30Wed
31Thu8:411.27:240.81:280.33:140.76:246:57Third Quarter31Thu
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 9:36 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 27% 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 Crescent (27% 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