Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 11:46 pm (0.2 ft)
Next high tide : in 58m at 4:42 pm (1.7 ft)
Sunset today : 7:21 pm
Sunrise tomorrow : 6:12 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Dec 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:092.02:450.610:290.28:20-0.27:025:56Full Moon1Wed
2Thu3:532.03:360.511:210.19:01-0.27:035:57Full Moon2Thu
3Fri4:372.04:280.512:110.17:045:57Full Moon3Fri
4Sat5:221.95:230.412:590.17:045:57Waning Gibbous4Sat
5Sun6:061.86:260.51:470.17:055:57Waning Gibbous5Sun
6Mon6:511.67:430.52:340.17:065:57Waning Gibbous6Mon
7Tue7:361.59:110.612:060.33:180.17:065:57Third Quarter7Tue
8Wed8:221.310:340.81:150.43:570.17:075:58Third Quarter8Wed
9Thu9:101.111:360.92:500.64:320.17:085:58Third Quarter9Thu
10Fri10:001.04:370.65:030.17:085:58Third Quarter10Fri
11Sat12:221.110:51 AM0.86:150.65:330.17:095:58Waning Crescent11Sat
12Sun12:591.311:42 AM0.77:330.56:020.07:095:59Waning Crescent12Sun
13Mon1:331.412:310.68:320.46:320.07:105:59Waning Crescent13Mon
14Tue2:061.51:170.59:190.37:030.07:115:59Waning Crescent14Tue
15Wed2:401.62:000.59:590.37:36-0.17:116:00New Moon15Wed
16Thu3:141.72:410.510:370.28:10-0.17:126:00New Moon16Thu
17Fri3:491.73:210.411:150.28:46-0.17:126:01New Moon17Fri
18Sat4:251.84:020.411:540.19:23-0.17:136:01New Moon18Sat
19Sun5:021.84:490.412:330.17:146:02Waxing Crescent19Sun
20Mon5:401.75:440.51:120.17:146:02Waxing Crescent20Mon
21Tue6:191.76:520.51:510.17:156:03Waxing Crescent21Tue
22Wed6:591.58:140.62:300.07:156:03Waxing Crescent22Wed
23Thu7:411.49:390.812:470.43:070.07:166:04First Quarter23Thu
24Fri8:281.110:531.12:290.53:450.07:166:04First Quarter24Fri
25Sat9:230.911:531.34:340.64:24-0.17:166:05First Quarter25Sat
26Sun10:290.76:310.55:05-0.17:176:05Waxing Gibbous26Sun
27Mon12:441.611:41 AM0.68:000.45:49-0.27:176:06Waxing Gibbous27Mon
28Tue1:311.812:490.59:030.36:34-0.27:186:06Waxing Gibbous28Tue
29Wed2:161.91:490.49:520.27:20-0.37:186:07Waxing Gibbous29Wed
30Thu2:591.92:430.410:330.18:07-0.37:186:07Full Moon30Thu
31Fri3:411.93:350.511:110.18:56-0.27:196:08Full Moon31Fri
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 8:14 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 98% 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 Full Moon (98% 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