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 : in 1h 42m at 5:22 am (0.1 ft)
Next high tide : 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 - Dec 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:141.011:08 AM1.05:410.65:550.07:035:56Waxing Gibbous1Tue
2Wed12:511.211:58 AM0.96:500.56:270.07:035:57Waxing Gibbous2Wed
3Thu1:261.412:450.97:470.46:59-0.17:045:57Waxing Gibbous3Thu
4Fri2:021.51:310.88:390.37:33-0.17:055:57Waxing Gibbous4Fri
5Sat2:391.72:160.89:290.28:08-0.27:055:57Full Moon5Sat
6Sun3:181.83:020.710:170.28:46-0.27:065:57Full Moon6Sun
7Mon4:001.93:500.711:060.19:27-0.27:075:57Full Moon7Mon
8Tue4:431.94:420.611:550.110:10-0.17:075:58Full Moon8Tue
9Wed5:281.95:400.612:460.17:085:58Waning Gibbous9Wed
10Thu6:151.86:490.61:380.17:095:58Waning Gibbous10Thu
11Fri7:051.68:110.72:320.07:095:59Waning Gibbous11Fri
12Sat7:591.59:390.81:010.33:240.07:105:59Third Quarter12Sat
13Sun8:581.310:571.02:320.54:140.07:105:59Third Quarter13Sun
14Mon10:001.111:581.24:150.55:000.07:116:00Third Quarter14Mon
15Tue11:021.05:520.55:41-0.17:116:00Waning Crescent15Tue
16Wed12:481.412:000.97:130.56:20-0.17:126:00Waning Crescent16Wed
17Thu1:311.512:530.88:160.46:56-0.17:136:01Waning Crescent17Thu
18Fri2:101.61:400.79:060.37:30-0.17:136:01Waning Crescent18Fri
19Sat2:471.72:240.69:480.28:04-0.17:146:02New Moon19Sat
20Sun3:231.73:050.610:260.28:38-0.17:146:02New Moon20Sun
21Mon3:571.73:440.611:010.29:13-0.17:156:03New Moon21Mon
22Tue4:301.74:240.611:360.19:470.07:156:03New Moon22Tue
23Wed5:031.65:050.612:110.17:166:04Waxing Crescent23Wed
24Thu5:361.55:500.612:480.17:166:04Waxing Crescent24Thu
25Fri6:091.46:440.61:270.17:176:05Waxing Crescent25Fri
26Sat6:431.37:520.62:080.17:176:05Waxing Crescent26Sat
27Sun7:201.29:140.712:270.42:510.17:176:06First Quarter27Sun
28Mon8:021.110:310.81:400.53:340.17:186:07First Quarter28Mon
29Tue8:541.011:311.03:260.64:170.07:186:07First Quarter29Tue
30Wed9:580.85:130.64:580.07:186:08First Quarter30Wed
31Thu12:181.211:06 AM0.76:380.55:44-0.17:196:08Waxing Gibbous31Thu
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 9:23 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 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