Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : 3:09 am (0.0 ft)
Next high tide : in 5h 27m at 7:42 pm (1.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Jul 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:431.64:57-0.18:130.56:017:28Waxing Gibbous1Sat
2Sun1:301.75:41-0.19:120.36:027:28Waxing Gibbous2Sun
3Mon12:440.52:131.86:26-0.19:540.36:027:28Waxing Gibbous3Mon
4Tue1:430.52:531.97:11-0.110:280.26:027:28Full Moon4Tue
5Wed2:330.53:321.87:55-0.110:580.26:037:28Full Moon5Wed
6Thu3:190.54:081.88:38-0.111:270.26:037:28Full Moon6Thu
7Fri4:020.64:421.89:190.011:550.26:037:28Full Moon7Fri
8Sat4:440.65:141.79:590.16:047:28Waning Gibbous8Sat
9Sun5:290.75:441.612:230.110:39 AM0.26:047:28Waning Gibbous9Sun
10Mon6:180.76:131.412:520.111:21 AM0.36:057:27Waning Gibbous10Mon
11Tue7:130.86:391.31:220.112:090.46:057:27Waning Gibbous11Tue
12Wed8:180.97:051.11:530.11:120.66:057:27Third Quarter12Wed
13Thu9:301.07:321.02:260.12:440.76:067:27Third Quarter13Thu
14Fri10:381.18:040.83:010.14:450.76:067:27Third Quarter14Fri
15Sat11:361.39:040.73:400.16:490.66:077:27Third Quarter15Sat
16Sun12:241.44:240.18:070.56:077:26Waning Crescent16Sun
17Mon1:081.65:120.08:480.46:077:26Waning Crescent17Mon
18Tue12:150.51:491.76:020.09:230.36:087:26Waning Crescent18Tue
19Wed1:170.52:301.96:52-0.19:560.26:087:26Waning Crescent19Wed
20Thu2:110.53:101.97:41-0.110:290.16:097:25New Moon20Thu
21Fri3:020.63:502.08:30-0.111:020.16:097:25New Moon21Fri
22Sat3:520.74:291.99:20-0.111:350.16:097:25New Moon22Sat
23Sun4:450.85:071.810:110.06:107:24Waxing Crescent23Sun
24Mon5:400.95:451.712:090.011:07 AM0.26:107:24Waxing Crescent24Mon
25Tue6:411.06:231.412:420.012:090.36:117:23Waxing Crescent25Tue
26Wed7:481.27:011.21:170.01:260.56:117:23Waxing Crescent26Wed
27Thu9:011.37:421.01:550.03:050.66:117:22First Quarter27Thu
28Fri10:161.48:370.72:360.05:150.76:127:22First Quarter28Fri
29Sat11:251.610:100.63:250.17:270.56:127:22First Quarter29Sat
30Sun12:231.74:200.18:290.46:137:21Waxing Gibbous30Sun
31Mon1:131.75:190.19:040.36:137:21Waxing Gibbous31Mon
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 11:25 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 29% 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 Crescent (29% 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