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 21m 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 - May 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:061.01:190.96:500.07:030.36:097:06Waning Crescent1Sat
2Sun12:441.01:511.17:13-0.17:590.36:087:07Waning Crescent2Sun
3Mon1:210.92:241.37:36-0.18:530.26:077:07Waning Crescent3Mon
4Tue1:580.82:591.58:01-0.29:460.16:077:08New Moon4Tue
5Wed2:360.73:371.68:28-0.210:400.16:067:08New Moon5Wed
6Thu3:150.64:181.78:58-0.311:350.16:067:09New Moon6Thu
7Fri3:570.55:031.89:31-0.36:057:09New Moon7Fri
8Sat4:430.45:521.712:330.110:09 AM-0.26:047:09Waxing Crescent8Sat
9Sun5:390.36:451.71:360.110:51 AM-0.26:047:10Waxing Crescent9Sun
10Mon6:550.37:431.62:420.011:43 AM0.06:037:10Waxing Crescent10Mon
11Tue8:370.38:441.53:440.012:520.16:037:11First Quarter11Tue
12Wed10:170.59:451.44:350.02:310.36:027:11First Quarter12Wed
13Thu11:310.710:421.25:17-0.14:190.46:027:12First Quarter13Thu
14Fri12:251.05:51-0.15:530.46:027:12First Quarter14Fri
15Sat1:101.26:21-0.17:120.46:017:12Waxing Gibbous15Sat
16Sun12:230.91:501.46:49-0.28:200.36:017:13Waxing Gibbous16Sun
17Mon1:080.82:281.67:16-0.29:180.36:007:13Waxing Gibbous17Mon
18Tue1:500.73:051.77:43-0.210:100.26:007:14Full Moon18Tue
19Wed2:310.53:411.78:12-0.210:570.26:007:14Full Moon19Wed
20Thu3:110.54:171.78:42-0.211:400.15:597:15Full Moon20Thu
21Fri3:510.44:541.79:13-0.15:597:15Full Moon21Fri
22Sat4:310.45:321.612:230.19:47 AM-0.15:597:16Waning Gibbous22Sat
23Sun5:150.36:121.51:070.110:21 AM0.05:587:16Waning Gibbous23Sun
24Mon6:080.36:531.41:530.110:58 AM0.15:587:16Waning Gibbous24Mon
25Tue7:210.37:371.32:410.111:40 AM0.25:587:17Waning Gibbous25Tue
26Wed8:570.48:221.23:270.112:360.35:587:17Third Quarter26Wed
27Thu10:270.59:101.14:070.12:070.55:587:18Third Quarter27Thu
28Fri11:280.79:591.04:420.13:580.55:577:18Third Quarter28Fri
29Sat12:110.95:120.05:340.55:577:19Third Quarter29Sat
30Sun12:481.15:410.06:550.55:577:19Waning Crescent30Sun
31Mon1:241.46:09-0.18:030.45:577:19Waning Crescent31Mon
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