Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 1h 33m at 1:01 am (0.0 ft)
Next high tide : 5:38 am (0.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:551.32:510.26:137:20First Quarter1Fri
2Sat11:531.43:350.26:147:20First Quarter2Sat
3Sun12:411.54:280.28:540.46:147:19Waxing Gibbous3Sun
4Mon1:231.65:230.29:110.46:157:18Waxing Gibbous4Mon
5Tue12:530.52:021.76:150.19:330.36:157:18Waxing Gibbous5Tue
6Wed1:400.52:381.87:030.09:580.26:157:17Waxing Gibbous6Wed
7Thu2:220.63:121.87:470.010:240.26:167:17Full Moon7Thu
8Fri3:020.63:461.98:300.010:510.26:167:16Full Moon8Fri
9Sat3:440.74:191.89:130.011:180.16:167:15Full Moon9Sat
10Sun4:280.84:511.79:590.111:450.16:177:15Full Moon10Sun
11Mon5:171.05:231.610:490.26:177:14Waning Gibbous11Mon
12Tue6:101.15:551.412:130.111:47 AM0.46:177:13Waning Gibbous12Tue
13Wed7:111.26:281.212:420.11:000.56:187:13Waning Gibbous13Wed
14Thu8:201.37:020.91:140.12:410.76:187:12Third Quarter14Thu
15Fri9:371.57:440.71:520.15:010.76:197:11Third Quarter15Fri
16Sat10:521.69:370.52:400.17:290.56:197:10Third Quarter16Sat
17Sun11:581.711:360.53:430.18:170.46:197:10Third Quarter17Sun
18Mon12:531.84:550.18:480.36:207:09Waning Crescent18Mon
19Tue12:500.51:411.96:030.19:170.26:207:08Waning Crescent19Tue
20Wed1:450.62:241.97:020.09:430.26:207:07Waning Crescent20Wed
21Thu2:300.73:021.87:540.010:070.26:207:06New Moon21Thu
22Fri3:120.83:371.88:410.110:300.26:217:06New Moon22Fri
23Sat3:520.94:081.79:260.110:530.26:217:05New Moon23Sat
24Sun4:311.04:371.510:100.211:150.26:217:04New Moon24Sun
25Mon5:111.15:041.410:540.311:370.26:227:03Waxing Crescent25Mon
26Tue5:531.25:271.211:430.411:590.26:227:02Waxing Crescent26Tue
27Wed6:381.25:481.012:390.66:227:01Waxing Crescent27Wed
28Thu7:291.36:040.912:230.21:520.66:237:00Waxing Crescent28Thu
29Fri8:341.36:110.712:490.33:400.76:236:59First Quarter29Fri
30Sat9:511.31:230.36:236:59First Quarter30Sat
31Sun11:031.410:230.52:170.38:210.56:236:58First Quarter31Sun
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 3:19 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 5% 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 Crescent (5% 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