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 45m 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 - Dec 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:471.211:38 AM0.86:530.56:070.07:035:56Waning Crescent1Thu
2Fri1:211.412:260.87:540.46:370.07:035:57Waning Crescent2Fri
3Sat1:561.51:110.78:450.47:09-0.17:045:57Waning Crescent3Sat
4Sun2:321.71:560.69:330.37:43-0.17:055:57New Moon4Sun
5Mon3:091.82:410.610:180.28:20-0.27:055:57New Moon5Mon
6Tue3:481.93:270.611:040.19:00-0.27:065:57New Moon6Tue
7Wed4:301.94:170.511:490.19:42-0.17:075:57New Moon7Wed
8Thu5:121.95:120.512:350.17:075:58Waxing Crescent8Thu
9Fri5:561.86:160.61:210.17:085:58Waxing Crescent9Fri
10Sat6:421.77:340.62:080.17:085:58Waxing Crescent10Sat
11Sun7:311.59:000.812:230.32:540.07:095:59First Quarter11Sun
12Mon8:231.310:231.01:490.43:390.07:105:59First Quarter12Mon
13Tue9:201.111:301.23:390.64:220.07:105:59First Quarter13Tue
14Wed10:230.95:300.65:04-0.17:116:00First Quarter14Wed
15Thu12:241.411:26 AM0.87:060.55:44-0.17:116:00Waxing Gibbous15Thu
16Fri1:111.612:270.78:180.46:24-0.17:126:00Waxing Gibbous16Fri
17Sat1:531.71:210.69:120.37:03-0.17:136:01Waxing Gibbous17Sat
18Sun2:331.82:100.59:560.27:42-0.27:136:01Full Moon18Sun
19Mon3:111.82:560.510:330.28:21-0.17:146:02Full Moon19Mon
20Tue3:481.83:380.511:080.18:59-0.17:146:02Full Moon20Tue
21Wed4:231.84:200.511:400.19:38-0.17:156:03Full Moon21Wed
22Thu4:571.75:020.512:130.17:156:03Waning Gibbous22Thu
23Fri5:301.65:490.612:460.17:166:04Waning Gibbous23Fri
24Sat6:021.56:420.61:200.17:166:04Waning Gibbous24Sat
25Sun6:331.47:480.61:560.17:176:05Waning Gibbous25Sun
26Mon7:041.29:050.712:260.42:330.17:176:05Third Quarter26Mon
27Tue7:371.110:220.91:380.53:110.17:176:06Third Quarter27Tue
28Wed8:170.911:241.03:220.63:500.17:186:06Third Quarter28Wed
29Thu9:110.85:160.64:300.07:186:07Third Quarter29Thu
30Fri12:121.210:27 AM0.66:520.55:120.07:186:08Waning Crescent30Fri
31Sat12:541.411:43 AM0.57:580.45:59-0.17:196:08Waning Crescent31Sat
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 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