Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : in 4h 25m at 11:21 pm (0.2 ft)
Next high tide : 4:11 am (0.7 ft)
Sunset today : 7:22 pm
Sunrise tomorrow : 6:12 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Mar 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:350.411:041.35:460.32:530.07:016:44First Quarter1Fri
2Sat10:560.36:580.24:200.07:006:45First Quarter2Sat
3Sun12:061.412:180.47:380.15:39-0.16:596:45Waxing Gibbous3Sun
4Mon12:581.51:160.68:100.06:46-0.16:596:46Waxing Gibbous4Mon
5Tue1:441.62:050.78:41-0.17:45-0.26:586:46Waxing Gibbous5Tue
6Wed2:261.52:510.99:11-0.18:39-0.26:576:47Full Moon6Wed
7Thu3:051.53:351.19:40-0.29:31-0.16:566:47Full Moon7Thu
8Fri3:431.44:191.210:09-0.210:22-0.16:556:47Full Moon8Fri
9Sat4:191.25:021.310:38-0.211:130.06:546:48Full Moon9Sat
10Sun4:531.05:471.311:07-0.26:536:48Waning Gibbous10Sun
11Mon5:270.86:341.312:070.111:36 AM-0.16:536:48Waning Gibbous11Mon
12Tue5:590.77:281.21:080.212:07-0.16:526:49Waning Gibbous12Tue
13Wed6:330.58:331.22:220.312:420.06:516:49Third Quarter13Wed
14Thu7:220.49:481.14:030.31:300.16:506:49Third Quarter14Thu
15Fri9:400.311:011.16:140.32:460.16:496:50Third Quarter15Fri
16Sat11:310.47:050.24:200.26:486:50Third Quarter16Sat
17Sun12:001.212:320.57:290.15:360.16:476:51Waning Crescent17Sun
18Mon12:461.21:130.67:500.16:340.16:466:51Waning Crescent18Mon
19Tue1:241.21:470.78:110.07:230.06:456:51Waning Crescent19Tue
20Wed1:571.22:200.88:330.08:060.06:446:52Waning Crescent20Wed
21Thu2:281.22:520.98:55-0.18:480.06:436:52Waning Crescent21Thu
22Fri2:571.13:241.19:18-0.19:300.06:426:52New Moon22Fri
23Sat3:251.13:581.29:41-0.110:140.06:416:53New Moon23Sat
24Sun3:541.04:341.310:04-0.211:010.16:416:53New Moon24Sun
25Mon4:240.85:141.310:29-0.211:530.16:406:53Waxing Crescent25Mon
26Tue4:560.75:591.410:57-0.26:396:54Waxing Crescent26Tue
27Wed5:300.66:531.412:550.211:29 AM-0.16:386:54Waxing Crescent27Wed
28Thu6:130.47:571.32:110.212:09-0.16:376:54Waxing Crescent28Thu
29Fri7:240.39:121.33:440.21:050.06:366:55First Quarter29Fri
30Sat9:330.310:261.35:130.22:290.16:356:55First Quarter30Sat
31Sun11:150.411:311.36:110.14:110.16:346:55First Quarter31Sun
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 1:46 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 spring phase. Tonight's moon is 100% 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 (100% 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