Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : in 3h 00m at 9:04 pm (0.5 ft)
Next high tide (tomorrow) : 11:39 pm (0.5 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 - Dec 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:371.011:39 AM1.06:040.56:200.17:035:57Waning Crescent1Mon
2Tue1:141.212:231.07:080.56:480.07:045:57Waning Crescent2Tue
3Wed1:461.31:030.98:010.47:150.07:045:57Waning Crescent3Wed
4Thu2:181.41:410.88:480.47:420.07:055:57Waning Crescent4Thu
5Fri2:491.52:170.79:310.38:10-0.17:065:57New Moon5Fri
6Sat3:211.62:530.710:130.38:38-0.17:065:57New Moon6Sat
7Sun3:531.73:290.610:550.29:07-0.17:075:58New Moon7Sun
8Mon4:281.74:070.611:380.29:380.07:085:58New Moon8Mon
9Tue5:041.74:500.512:230.27:085:58Waxing Crescent9Tue
10Wed5:431.75:410.51:110.27:095:58Waxing Crescent10Wed
11Thu6:251.66:470.52:010.17:095:59Waxing Crescent11Thu
12Fri7:121.58:140.52:520.17:105:59Waxing Crescent12Fri
13Sat8:041.49:470.712:400.33:410.17:115:59First Quarter13Sat
14Sun9:031.311:030.92:150.54:270.07:116:00First Quarter14Sun
15Mon10:051.24:080.55:09-0.17:126:00First Quarter15Mon
16Tue12:001.111:07 AM1.05:460.55:49-0.17:126:01Waxing Gibbous16Tue
17Wed12:491.412:060.97:070.46:28-0.27:136:01Waxing Gibbous17Wed
18Thu1:341.61:020.88:140.37:07-0.27:136:01Waxing Gibbous18Thu
19Fri2:181.81:540.79:120.27:46-0.27:146:02Waxing Gibbous19Fri
20Sat3:011.92:450.710:040.18:26-0.27:146:02Full Moon20Sat
21Sun3:431.93:340.610:520.19:07-0.27:156:03Full Moon21Sun
22Mon4:241.94:240.611:380.19:48-0.17:156:03Full Moon22Mon
23Tue5:061.85:150.612:220.17:166:04Waning Gibbous23Tue
24Wed5:471.76:100.61:070.17:166:04Waning Gibbous24Wed
25Thu6:281.67:140.61:510.17:176:05Waning Gibbous25Thu
26Fri7:101.48:300.612:000.22:360.17:176:06Waning Gibbous26Fri
27Sat7:531.39:530.712:590.43:220.17:186:06Third Quarter27Sat
28Sun8:411.111:070.82:200.54:050.17:186:07Third Quarter28Sun
29Mon9:360.94:000.64:460.17:186:07Third Quarter29Mon
30Tue12:021.010:35 AM0.85:380.65:240.07:196:08Third Quarter30Tue
31Wed12:441.211:33 AM0.76:580.56:000.07:196:09Waning Crescent31Wed
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 10:21 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 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