Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 1h 50m at 9:34 am (0.1 ft)
Next high tide : 4:42 pm (1.7 ft)
Sunset today : 7:21 pm
Sunrise tomorrow : 6:12 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Jul 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:450.56:131.81:020.010:47 AM0.06:017:28Waxing Crescent1Sat
2Sun6:510.66:571.71:440.011:41 AM0.16:027:28Waxing Crescent2Sun
3Mon8:050.77:391.52:240.012:440.36:027:28Waxing Crescent3Mon
4Tue9:240.88:211.23:020.12:030.56:027:28First Quarter4Tue
5Wed10:381.09:051.03:390.13:440.76:037:28First Quarter5Wed
6Thu11:381.29:540.84:130.15:390.76:037:28First Quarter6Thu
7Fri12:271.44:460.17:300.66:037:28First Quarter7Fri
8Sat1:081.55:200.18:450.56:047:28Waxing Gibbous8Sat
9Sun1:461.65:550.09:300.46:047:28Waxing Gibbous9Sun
10Mon12:540.52:221.76:320.010:020.36:057:28Waxing Gibbous10Mon
11Tue1:440.52:571.77:100.010:310.36:057:27Waxing Gibbous11Tue
12Wed2:270.53:311.77:490.011:000.26:057:27Full Moon12Wed
13Thu3:070.54:051.88:270.011:300.26:067:27Full Moon13Thu
14Fri3:450.54:381.89:040.06:067:27Full Moon14Fri
15Sat4:250.55:101.712:010.29:40 AM0.06:077:27Full Moon15Sat
16Sun5:090.65:421.712:330.210:18 AM0.16:077:27Waning Gibbous16Sun
17Mon5:590.66:141.61:040.211:00 AM0.26:077:26Waning Gibbous17Mon
18Tue6:590.76:461.51:350.111:51 AM0.46:087:26Waning Gibbous18Tue
19Wed8:100.87:201.32:060.11:000.56:087:26Waning Gibbous19Wed
20Thu9:271.07:591.12:380.12:430.76:097:25Third Quarter20Thu
21Fri10:381.28:480.93:140.14:510.76:097:25Third Quarter21Fri
22Sat11:401.510:020.73:540.06:510.66:097:25Third Quarter22Sat
23Sun12:341.74:400.08:140.46:107:24Waning Crescent23Sun
24Mon1:241.95:32-0.19:070.36:107:24Waning Crescent24Mon
25Tue12:500.52:122.06:26-0.19:490.26:117:24Waning Crescent25Tue
26Wed1:540.52:582.17:21-0.210:280.16:117:23New Moon26Wed
27Thu2:500.63:422.18:14-0.211:040.16:117:23New Moon27Thu
28Fri3:420.64:242.09:05-0.111:380.16:127:22New Moon28Fri
29Sat4:330.75:031.99:550.06:127:22New Moon29Sat
30Sun5:250.85:411.712:120.110:45 AM0.16:137:21Waxing Crescent30Sun
31Mon6:200.96:161.512:440.111:38 AM0.36:137:21Waxing 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 1:08 pm — 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 98% 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 Full Moon (98% 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