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 : 9:27 pm (0.4 ft)
Next high tide : in 6h 36m at 1:24 pm (1.6 ft)
Sunset today : 7:24 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Jan 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:261.83:150.610:370.18:45-0.27:196:09Full Moon1Tue
2Wed4:031.83:580.611:140.19:23-0.17:196:09Full Moon2Wed
3Thu4:391.74:400.611:490.110:00-0.17:206:10Full Moon3Thu
4Fri5:131.65:240.612:250.17:206:11Waning Gibbous4Fri
5Sat5:481.56:120.61:010.17:206:11Waning Gibbous5Sat
6Sun6:211.47:100.61:390.17:206:12Waning Gibbous6Sun
7Mon6:561.38:210.612:010.32:200.17:216:13Waning Gibbous7Mon
8Tue7:321.19:430.712:570.43:020.17:216:13Third Quarter8Tue
9Wed8:141.010:560.82:180.53:450.17:216:14Third Quarter9Wed
10Thu9:060.911:511.04:030.64:270.17:216:15Third Quarter10Thu
11Fri10:130.75:440.55:080.07:216:15Third Quarter11Fri
12Sat12:351.211:22 AM0.77:040.55:480.07:216:16Waning Crescent12Sat
13Sun1:141.312:230.68:020.36:27-0.17:216:17Waning Crescent13Sun
14Mon1:511.51:170.68:500.27:08-0.27:226:17Waning Crescent14Mon
15Tue2:291.62:060.69:320.17:49-0.27:226:18Waning Crescent15Tue
16Wed3:081.72:530.610:120.08:31-0.37:226:19New Moon16Wed
17Thu3:471.83:410.610:520.09:15-0.37:226:19New Moon17Thu
18Fri4:271.84:300.611:32-0.110:01-0.27:216:20New Moon18Fri
19Sat5:081.85:230.712:12-0.17:216:21Waxing Crescent19Sat
20Sun5:501.76:220.712:54-0.17:216:22Waxing Crescent20Sun
21Mon6:321.57:290.81:36-0.17:216:22Waxing Crescent21Mon
22Tue7:181.38:470.912:480.22:22-0.17:216:23First Quarter22Tue
23Wed8:091.110:091.02:130.43:09-0.17:216:24First Quarter23Wed
24Thu9:100.911:221.24:010.54:00-0.17:216:24First Quarter24Thu
25Fri10:250.75:570.54:51-0.17:216:25First Quarter25Fri
26Sat12:211.411:41 AM0.67:290.45:42-0.17:206:26Waxing Gibbous26Sat
27Sun1:111.512:460.58:290.26:30-0.17:206:26Waxing Gibbous27Sun
28Mon1:541.61:410.59:120.27:15-0.17:206:27Waxing Gibbous28Mon
29Tue2:331.62:270.59:460.17:57-0.27:206:28Waxing Gibbous29Tue
30Wed3:101.63:070.610:160.18:37-0.27:196:28Full Moon30Wed
31Thu3:441.63:450.610:440.09:16-0.17:196:29Full Moon31Thu
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 5:25 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 spring phase. Tonight's moon is 81% 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 Waxing Gibbous (81% 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