Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 3:48 am (0.1 ft)
Next high tide (tomorrow) : in 2h 07m at 8:36 pm (0.7 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Nov 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:411.011:59 AM1.26:040.56:380.16:446:04Waning Crescent1Tue
2Wed1:141.212:381.17:020.57:030.16:456:03Waning Crescent2Wed
3Thu1:461.31:141.07:540.47:270.16:456:03Waning Crescent3Thu
4Fri2:181.51:480.98:420.47:520.06:466:02Waning Crescent4Fri
5Sat2:501.62:230.99:290.38:190.06:466:02New Moon5Sat
6Sun3:251.72:590.810:160.38:470.06:476:01New Moon6Sun
7Mon4:021.83:370.711:050.39:18-0.16:486:01New Moon7Mon
8Tue4:421.84:190.611:570.29:530.06:486:00Waxing Crescent8Tue
9Wed5:271.85:070.612:530.26:496:00Waxing Crescent9Wed
10Thu6:151.86:110.51:520.26:495:59Waxing Crescent10Thu
11Fri7:081.77:390.52:530.26:505:59Waxing Crescent11Fri
12Sat8:061.69:220.612:190.33:480.26:515:59First Quarter12Sat
13Sun9:081.510:480.81:490.44:360.16:515:58First Quarter13Sun
14Mon10:091.411:501.13:400.55:170.16:525:58First Quarter14Mon
15Tue11:071.25:190.55:530.06:525:58Waxing Gibbous15Tue
16Wed12:391.312:011.16:410.56:27-0.16:535:58Waxing Gibbous16Wed
17Thu1:231.512:501.07:510.47:00-0.16:545:57Waxing Gibbous17Thu
18Fri2:051.71:370.98:500.37:33-0.16:545:57Waxing Gibbous18Fri
19Sat2:451.82:220.89:430.38:06-0.16:555:57Full Moon19Sat
20Sun3:241.93:050.710:320.28:40-0.16:565:57Full Moon20Sun
21Mon4:031.93:490.611:180.29:15-0.16:565:57Full Moon21Mon
22Tue4:421.84:320.612:020.26:575:56Waning Gibbous22Tue
23Wed5:211.75:190.512:470.26:575:56Waning Gibbous23Wed
24Thu6:011.66:150.51:320.26:585:56Waning Gibbous24Thu
25Fri6:421.57:250.52:190.26:595:56Waning Gibbous25Fri
26Sat7:251.48:540.63:060.26:595:56Third Quarter26Sat
27Sun8:111.310:210.712:560.43:500.27:005:56Third Quarter27Sun
28Mon9:011.211:250.92:270.64:290.27:015:56Third Quarter28Mon
29Tue9:531.04:100.65:040.17:015:56Third Quarter29Tue
30Wed12:101.010:47 AM0.95:400.65:360.17:025:56Third Quarter30Wed
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 12:12 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 neap phase. Tonight's moon is 55% 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 minimum.

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 First Quarter (55% illuminated). This places Nonopapa, Niihau Island, HI in a neap tide cycle, so tidal ranges are near their weekly minimum 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