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 2h 16m 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 - Apr 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:321.21:140.67:390.06:270.16:336:56Waning Crescent1Thu
2Fri1:091.21:460.77:580.07:170.16:326:56Waning Crescent2Fri
3Sat1:421.22:170.98:170.08:040.16:316:56Waning Crescent3Sat
4Sun2:131.12:481.08:38-0.18:500.16:306:57Waning Crescent4Sun
5Mon2:421.13:211.28:58-0.19:370.16:296:57New Moon5Mon
6Tue3:120.93:551.39:20-0.210:250.16:286:57New Moon6Tue
7Wed3:420.84:331.49:43-0.211:180.16:276:58New Moon7Wed
8Thu4:140.75:151.510:08-0.26:276:58Waxing Crescent8Thu
9Fri4:480.56:021.512:170.110:36 AM-0.26:266:58Waxing Crescent9Fri
10Sat5:250.46:581.51:260.211:10 AM-0.26:256:59Waxing Crescent10Sat
11Sun6:160.38:041.42:520.211:52 AM-0.16:246:59Waxing Crescent11Sun
12Mon8:010.29:181.44:270.112:520.06:236:59First Quarter12Mon
13Tue10:170.310:291.45:360.12:300.16:227:00First Quarter13Tue
14Wed11:420.411:301.46:180.04:210.26:217:00First Quarter14Wed
15Thu12:380.76:50-0.15:490.26:217:00Waxing Gibbous15Thu
16Fri12:221.31:230.97:18-0.17:000.26:207:01Waxing Gibbous16Fri
17Sat1:071.22:051.17:44-0.28:020.16:197:01Waxing Gibbous17Sat
18Sun1:471.12:441.38:09-0.28:580.16:187:01Waxing Gibbous18Sun
19Mon2:251.03:211.58:34-0.29:520.16:177:02Full Moon19Mon
20Tue3:010.83:591.68:59-0.210:430.16:177:02Full Moon20Tue
21Wed3:360.74:361.69:24-0.211:330.16:167:02Full Moon21Wed
22Thu4:110.65:141.69:50-0.26:157:03Waning Gibbous22Thu
23Fri4:450.45:541.512:240.110:18 AM-0.16:147:03Waning Gibbous23Fri
24Sat5:210.46:391.41:200.210:47 AM-0.16:137:04Waning Gibbous24Sat
25Sun6:060.37:311.32:240.211:20 AM0.06:137:04Waning Gibbous25Sun
26Mon7:300.38:311.23:360.212:000.16:127:04Third Quarter26Mon
27Tue9:470.39:351.24:430.21:080.26:117:05Third Quarter27Tue
28Wed11:220.410:331.15:290.13:040.36:117:05Third Quarter28Wed
29Thu12:110.66:000.14:440.46:107:06Third Quarter29Thu
30Fri12:470.76:260.06:000.36:097:06Waning Crescent30Fri
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