Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 3:48 am (0.1 ft)
Next high tide (tomorrow) : in 2h 07m at 8:36 pm (0.7 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Jun 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:340.45:381.812:310.19:53 AM-0.15:577:20Waxing Crescent1Fri
2Sat5:280.36:261.71:260.110:33 AM-0.15:577:20Waxing Crescent2Sat
3Sun6:390.37:181.62:230.111:20 AM0.05:577:21Waxing Crescent3Sun
4Mon8:120.48:131.53:170.012:220.25:567:21Waxing Crescent4Mon
5Tue9:490.59:101.44:060.01:520.35:567:22First Quarter5Tue
6Wed11:060.710:071.34:470.03:410.55:567:22First Quarter6Wed
7Thu12:041.05:23-0.15:230.55:567:22First Quarter7Thu
8Fri12:521.35:56-0.16:510.55:567:23Waxing Gibbous8Fri
9Sat1:351.56:28-0.28:060.45:567:23Waxing Gibbous9Sat
10Sun12:460.82:171.76:59-0.29:110.35:577:23Waxing Gibbous10Sun
11Mon1:350.72:571.87:31-0.210:080.25:577:24Full Moon11Mon
12Tue2:240.63:371.98:05-0.210:590.25:577:24Full Moon12Tue
13Wed3:110.54:171.98:39-0.211:460.15:577:24Full Moon13Wed
14Thu3:580.44:571.89:15-0.15:577:25Full Moon14Thu
15Fri4:460.45:371.712:300.19:53 AM-0.15:577:25Waning Gibbous15Fri
16Sat5:380.46:171.61:140.110:32 AM0.05:577:25Waning Gibbous16Sat
17Sun6:380.46:591.51:570.111:13 AM0.15:577:25Waning Gibbous17Sun
18Mon7:520.47:411.42:400.112:000.35:587:26Waning Gibbous18Mon
19Tue9:190.58:241.33:220.11:050.45:587:26Third Quarter19Tue
20Wed10:390.79:101.14:000.12:380.65:587:26Third Quarter20Wed
21Thu11:370.99:571.04:350.14:220.65:587:26Third Quarter21Thu
22Fri12:201.05:070.15:570.65:587:27Third Quarter22Fri
23Sat12:561.25:370.07:160.55:597:27Waning Crescent23Sat
24Sun1:311.46:060.08:200.55:597:27Waning Crescent24Sun
25Mon12:280.72:051.66:37-0.19:140.45:597:27Waning Crescent25Mon
26Tue1:170.62:421.77:09-0.110:020.35:597:27Waning Crescent26Tue
27Wed2:050.53:201.87:44-0.110:470.26:007:27New Moon27Wed
28Thu2:530.54:001.98:23-0.211:310.16:007:28New Moon28Thu
29Fri3:420.44:421.99:04-0.26:007:28New Moon29Fri
30Sat4:330.45:251.912:150.19:48 AM-0.16:017:28Waxing Crescent30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1610367)

Common Questions About Nonopapa, Niihau Island, HI Tides

Show All
What time does the tide turn (slack tide) in Nonopapa, Niihau Island, HI today?

Slack tide in Nonopapa, Niihau Island, HI is approximately 12:12 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 neap phase. Tonight's moon is 55% 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 minimum.

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 First Quarter (55% illuminated). This places Nonopapa, Niihau Island, HI in a neap tide cycle, so tidal ranges are near their weekly minimum 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