Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 5:59 am (0.0 ft)
Next high tide (tomorrow) : in 45m at 11:56 pm (0.6 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (78% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Apr 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:271.15:111.410:39-0.211:340.06:326:56Full Moon1Wed
2Thu5:060.95:581.411:11-0.26:316:56Waning Gibbous2Thu
3Fri5:470.76:491.412:340.111:43 AM-0.16:316:56Waning Gibbous3Fri
4Sat6:320.67:461.31:430.212:170.06:306:57Waning Gibbous4Sat
5Sun7:340.48:531.23:060.212:580.16:296:57Third Quarter5Sun
6Mon9:200.310:051.24:450.21:590.26:286:57Third Quarter6Mon
7Tue11:130.411:131.26:060.13:320.26:276:58Third Quarter7Tue
8Wed12:220.56:520.15:030.26:266:58Third Quarter8Wed
9Thu12:081.21:050.67:220.06:120.26:256:58Waning Crescent9Thu
10Fri12:541.21:390.77:470.07:060.16:246:59Waning Crescent10Fri
11Sat1:321.22:100.88:100.07:520.16:236:59Waning Crescent11Sat
12Sun2:051.12:400.98:33-0.18:340.16:236:59Waning Crescent12Sun
13Mon2:361.13:101.18:56-0.19:150.16:227:00New Moon13Mon
14Tue3:061.03:411.29:19-0.19:560.16:217:00New Moon14Tue
15Wed3:350.94:121.29:42-0.110:390.16:207:01New Moon15Wed
16Thu4:040.84:461.310:05-0.111:250.16:197:01New Moon16Thu
17Fri4:340.75:231.410:29-0.16:187:01Waxing Crescent17Fri
18Sat5:060.66:061.412:170.110:56 AM-0.16:187:02Waxing Crescent18Sat
19Sun5:440.56:571.41:190.211:26 AM-0.16:177:02Waxing Crescent19Sun
20Mon6:370.47:581.32:340.212:060.06:167:02Waxing Crescent20Mon
21Tue8:120.39:101.33:570.21:040.16:157:03First Quarter21Tue
22Wed10:140.410:211.35:100.12:370.26:157:03First Quarter22Wed
23Thu11:360.511:251.36:010.04:210.26:147:03First Quarter23Thu
24Fri12:330.76:41-0.15:460.26:137:04Waxing Gibbous24Fri
25Sat12:191.31:200.97:16-0.16:560.16:127:04Waxing Gibbous25Sat
26Sun1:081.32:031.17:48-0.27:580.16:127:05Waxing Gibbous26Sun
27Mon1:531.22:461.38:19-0.28:560.06:117:05Waxing Gibbous27Mon
28Tue2:361.13:281.58:50-0.39:520.06:107:05Full Moon28Tue
29Wed3:181.04:091.69:21-0.310:460.06:107:06Full Moon29Wed
30Thu3:590.84:521.69:52-0.211:410.16:097:06Full Moon30Thu
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 2:57 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 78% 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 (78% 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