Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 5h 59m at 4:39 am (-0.1 ft)
Next high tide : 12:30 pm (1.6 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:04 am
Moon phase : Third Quarter (38% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:221.05:361.711:000.16:137:20Waning Gibbous1Thu
2Fri6:191.16:181.512:240.011:57 AM0.36:147:20Waning Gibbous2Fri
3Sat7:211.17:011.31:040.11:030.46:147:19Waning Gibbous3Sat
4Sun8:311.27:491.11:460.12:240.66:147:18Third Quarter4Sun
5Mon9:451.38:490.92:320.14:050.66:157:18Third Quarter5Mon
6Tue10:561.410:060.83:230.25:570.66:157:17Third Quarter6Tue
7Wed11:571.411:240.74:180.27:210.56:167:17Third Quarter7Wed
8Thu12:461.55:130.28:090.46:167:16Waning Crescent8Thu
9Fri12:280.71:291.66:040.18:430.46:167:15Waning Crescent9Fri
10Sat1:180.72:061.66:500.19:100.36:177:15Waning Crescent10Sat
11Sun2:000.72:391.67:320.19:350.36:177:14Waning Crescent11Sun
12Mon2:370.83:111.68:120.110:010.26:177:13New Moon12Mon
13Tue3:130.83:401.68:500.110:270.26:187:13New Moon13Tue
14Wed3:480.94:091.69:270.110:540.26:187:12New Moon14Wed
15Thu4:240.94:371.510:040.211:210.26:187:11New Moon15Thu
16Fri5:021.05:051.410:440.311:490.26:197:10Waxing Crescent16Fri
17Sat5:431.05:331.311:270.46:197:10Waxing Crescent17Sat
18Sun6:301.16:041.212:180.212:190.56:197:09Waxing Crescent18Sun
19Mon7:281.16:391.012:500.21:270.66:207:08Waxing Crescent19Mon
20Tue8:381.27:260.91:280.22:590.66:207:07First Quarter20Tue
21Wed9:541.38:410.82:170.24:440.66:207:06First Quarter21Wed
22Thu11:031.410:230.73:180.26:100.56:217:05First Quarter22Thu
23Fri12:021.64:260.17:090.46:217:05Waxing Gibbous23Fri
24Sat12:531.75:320.17:540.36:217:04Waxing Gibbous24Sat
25Sun12:500.81:391.86:320.08:340.26:227:03Waxing Gibbous25Sun
26Mon1:450.92:231.87:280.09:110.16:227:02Waxing Gibbous26Mon
27Tue2:351.03:061.88:220.09:470.16:227:01Full Moon27Tue
28Wed3:231.13:471.89:140.010:220.06:237:00Full Moon28Wed
29Thu4:111.34:271.610:060.110:570.06:236:59Full Moon29Thu
30Fri5:001.35:061.511:000.211:320.16:236:58Waning Gibbous30Fri
31Sat5:501.45:461.311:560.36:236:58Waning Gibbous31Sat
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 8:34 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 38% 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 Third Quarter (38% 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