Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 2h 27m at 4:33 am (0.1 ft)
Next high tide : 12:42 pm (1.5 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 - Jan 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:531.48:150.812:110.22:040.07:196:09Waning Gibbous1Wed
2Thu7:341.29:320.81:130.42:470.07:206:10Third Quarter2Thu
3Fri8:181.010:471.02:340.53:310.07:206:11Third Quarter3Fri
4Sat9:120.811:471.14:160.64:160.07:206:11Third Quarter4Sat
5Sun10:190.76:030.65:000.07:206:12Third Quarter5Sun
6Mon12:351.211:28 AM0.67:250.55:430.07:206:13Waning Crescent6Mon
7Tue1:161.312:270.68:170.46:240.07:216:13Waning Crescent7Tue
8Wed1:521.41:160.58:550.37:02-0.17:216:14Waning Crescent8Wed
9Thu2:261.51:590.59:280.27:40-0.17:216:15Waning Crescent9Thu
10Fri2:581.62:380.610:000.18:16-0.17:216:15New Moon10Fri
11Sat3:311.63:170.610:310.18:52-0.17:216:16New Moon11Sat
12Sun4:031.63:560.611:040.19:29-0.17:216:17New Moon12Sun
13Mon4:351.64:370.611:360.010:07-0.17:216:17New Moon13Mon
14Tue5:081.65:230.712:090.07:216:18Waxing Crescent14Tue
15Wed5:411.56:150.712:440.07:216:19Waxing Crescent15Wed
16Thu6:171.37:180.81:210.07:216:19Waxing Crescent16Thu
17Fri6:551.28:330.912:370.32:010.07:216:20Waxing Crescent17Fri
18Sat7:401.09:541.02:010.42:47-0.17:216:21First Quarter18Sat
19Sun8:400.811:071.23:540.53:38-0.17:216:21First Quarter19Sun
20Mon10:010.75:480.54:34-0.17:216:22First Quarter20Mon
21Tue12:091.411:27 AM0.67:150.35:31-0.27:216:23Waxing Gibbous21Tue
22Wed1:011.612:390.68:130.26:26-0.27:216:23Waxing Gibbous22Wed
23Thu1:481.71:390.68:590.17:18-0.27:216:24Waxing Gibbous23Thu
24Fri2:321.82:310.69:380.08:08-0.27:206:25Full Moon24Fri
25Sat3:131.83:190.710:140.08:55-0.27:206:26Full Moon25Sat
26Sun3:531.74:050.710:49-0.19:40-0.27:206:26Full Moon26Sun
27Mon4:301.64:510.811:22-0.110:25-0.17:206:27Full Moon27Mon
28Tue5:061.55:370.811:54-0.111:100.07:196:27Waning Gibbous28Tue
29Wed5:391.46:250.912:27-0.17:196:28Waning Gibbous29Wed
30Thu6:121.27:200.91:000.07:196:29Waning Gibbous30Thu
31Fri6:431.08:240.912:520.31:360.07:186:29Waning Gibbous31Fri
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 8:37 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