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 : 12:39 pm (0.3 ft)
Next high tide : in 2h 03m at 8:02 am (0.6 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 - Dec 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:571.75:550.41:340.27:035:56Waxing Crescent1Wed
2Thu6:371.57:020.52:190.27:035:57Waxing Crescent2Thu
3Fri7:181.48:320.53:020.27:045:57Waxing Crescent3Fri
4Sat8:001.310:060.612:220.43:430.27:055:57First Quarter4Sat
5Sun8:451.211:140.81:460.54:190.17:055:57First Quarter5Sun
6Mon9:331.13:400.64:510.17:065:57First Quarter6Mon
7Tue12:001.010:24 AM0.95:230.65:210.17:075:57First Quarter7Tue
8Wed12:371.211:16 AM0.86:480.65:510.07:075:58Waxing Gibbous8Wed
9Thu1:121.412:080.77:560.56:21-0.17:085:58Waxing Gibbous9Thu
10Fri1:481.612:590.68:520.46:54-0.17:085:58Waxing Gibbous10Fri
11Sat2:251.71:480.59:420.37:30-0.27:095:59Waxing Gibbous11Sat
12Sun3:041.82:360.510:290.28:10-0.27:105:59Full Moon12Sun
13Mon3:461.93:250.511:150.18:52-0.27:105:59Full Moon13Mon
14Tue4:292.04:160.412:010.17:116:00Full Moon14Tue
15Wed5:131.95:130.512:460.17:116:00Waning Gibbous15Wed
16Thu5:581.96:200.51:310.07:126:00Waning Gibbous16Thu
17Fri6:431.77:380.62:150.07:136:01Waning Gibbous17Fri
18Sat7:301.59:050.712:230.22:580.07:136:01Third Quarter18Sat
19Sun8:181.310:261.01:480.43:390.07:146:02Third Quarter19Sun
20Mon9:101.111:331.23:370.64:180.07:146:02Third Quarter20Mon
21Tue10:090.95:350.64:56-0.17:156:03Third Quarter21Tue
22Wed12:261.411:13 AM0.77:210.55:34-0.17:156:03Waning Crescent22Wed
23Thu1:121.612:170.68:370.46:12-0.17:166:04Waning Crescent23Thu
24Fri1:541.71:140.59:300.36:50-0.17:166:04Waning Crescent24Fri
25Sat2:331.82:050.410:100.27:30-0.17:166:05New Moon25Sat
26Sun3:111.82:490.410:430.28:09-0.17:176:05New Moon26Sun
27Mon3:471.83:300.411:140.18:48-0.17:176:06New Moon27Mon
28Tue4:221.74:100.511:430.19:26-0.17:186:06New Moon28Tue
29Wed4:551.74:500.512:130.17:186:07Waxing Crescent29Wed
30Thu5:271.65:340.512:440.17:186:08Waxing Crescent30Thu
31Fri5:581.56:250.61:160.17:196:08Waxing Crescent31Fri
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 10:20 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 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