Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 4h 43m at 12:18 am (0.0 ft)
Next high tide : 5:24 am (0.7 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:06 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:401.06:261.512:440.012:090.36:137:20Waning Gibbous1Mon
2Tue7:461.27:031.21:180.01:260.56:147:20Waning Gibbous2Tue
3Wed9:001.37:420.91:530.03:090.76:147:19Third Quarter3Wed
4Thu10:151.48:330.72:320.15:340.76:147:18Third Quarter4Thu
5Fri11:231.610:130.53:170.17:550.56:157:18Third Quarter5Fri
6Sat12:221.74:120.18:450.46:157:17Waning Crescent6Sat
7Sun1:121.75:120.19:160.36:167:17Waning Crescent7Sun
8Mon1:000.51:551.86:100.19:410.36:167:16Waning Crescent8Mon
9Tue1:500.52:341.87:020.110:020.36:167:15Waning Crescent9Tue
10Wed2:300.63:081.87:480.110:220.26:177:15New Moon10Wed
11Thu3:060.73:391.78:290.110:420.26:177:14New Moon11Thu
12Fri3:410.84:081.79:080.111:030.26:177:13New Moon12Fri
13Sat4:170.84:341.69:460.211:240.26:187:13New Moon13Sat
14Sun4:540.94:581.510:250.211:460.26:187:12Waxing Crescent14Sun
15Mon5:321.05:211.411:060.46:187:11Waxing Crescent15Mon
16Tue6:151.15:431.212:080.211:53 AM0.56:197:10Waxing Crescent16Tue
17Wed7:041.16:031.012:300.212:540.66:197:10Waxing Crescent17Wed
18Thu8:051.26:240.912:550.22:220.76:197:09First Quarter18Thu
19Fri9:191.36:420.71:240.24:330.76:207:08First Quarter19Fri
20Sat10:351.42:060.26:207:07First Quarter20Sat
21Sun11:401.510:440.53:080.27:580.46:207:06First Quarter21Sun
22Mon12:331.74:240.28:200.36:217:06Waxing Gibbous22Mon
23Tue12:150.51:201.85:350.18:470.36:217:05Waxing Gibbous23Tue
24Wed1:130.62:041.96:370.09:160.26:217:04Waxing Gibbous24Wed
25Thu2:030.72:442.07:340.09:450.16:227:03Full Moon25Thu
26Fri2:510.93:231.98:280.010:140.16:227:02Full Moon26Fri
27Sat3:391.04:011.89:210.010:430.06:227:01Full Moon27Sat
28Sun4:281.24:381.610:170.111:120.06:237:00Full Moon28Sun
29Mon5:181.35:141.411:150.311:420.06:236:59Waning Gibbous29Mon
30Tue6:121.45:491.212:210.46:236:59Waning Gibbous30Tue
31Wed7:101.56:250.912:130.11:420.66:236:58Waning Gibbous31Wed
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 2:51 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 3% 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 New Moon (3% 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