Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : in 2h 29m at 9:55 pm (0.2 ft)
Next high tide : 2:38 am (0.7 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Oct 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:571.53:431.210:130.39:540.16:326:29New Moon1Mon
2Tue4:361.64:141.011:080.410:170.06:326:28Waxing Crescent2Tue
3Wed5:201.74:460.812:110.46:326:27Waxing Crescent3Wed
4Thu6:111.75:200.71:280.56:336:26Waxing Crescent4Thu
5Fri7:121.76:050.53:080.56:336:25Waxing Crescent5Fri
6Sat8:251.77:560.45:030.46:336:24First Quarter6Sat
7Sun9:421.610:290.512:580.26:080.36:336:23First Quarter7Sun
8Mon10:531.711:510.62:440.36:440.26:346:22First Quarter8Mon
9Tue11:511.74:320.37:120.26:346:21Waxing Gibbous9Tue
10Wed12:430.812:391.65:530.37:380.16:356:21Waxing Gibbous10Wed
11Thu1:271.01:211.66:590.38:020.16:356:20Waxing Gibbous11Thu
12Fri2:071.21:591.47:560.38:250.06:356:19Waxing Gibbous12Fri
13Sat2:451.42:341.38:500.38:470.06:366:18Full Moon13Sat
14Sun3:221.63:071.19:410.39:100.06:366:17Full Moon14Sun
15Mon3:581.73:381.010:320.49:320.06:366:16Full Moon15Mon
16Tue4:341.74:080.811:240.49:550.16:376:15Waning Gibbous16Tue
17Wed5:121.74:380.712:190.46:376:15Waning Gibbous17Wed
18Thu5:521.65:070.61:210.46:386:14Waning Gibbous18Thu
19Fri6:381.55:410.52:390.46:386:13Waning Gibbous19Fri
20Sat7:341.57:120.44:200.46:386:12Waning Gibbous20Sat
21Sun8:421.410:140.55:340.46:396:12Third Quarter21Sun
22Mon9:511.411:360.61:070.46:050.36:396:11Third Quarter22Mon
23Tue10:501.43:130.56:280.26:406:10Third Quarter23Tue
24Wed12:170.711:37 AM1.44:440.56:490.26:406:09Third Quarter24Wed
25Thu12:490.912:171.45:530.57:090.16:416:09Waning Crescent25Thu
26Fri1:201.012:521.36:510.47:290.16:416:08Waning Crescent26Fri
27Sat1:521.21:271.27:450.47:500.06:416:07Waning Crescent27Sat
28Sun2:251.42:011.18:380.38:130.06:426:07New Moon28Sun
29Mon3:001.62:361.09:310.38:37-0.16:426:06New Moon29Mon
30Tue3:381.83:120.810:270.39:04-0.16:436:05New Moon30Tue
31Wed4:201.93:510.711:260.39:34-0.16:436:05New Moon31Wed
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 12:16 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 Waning 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