Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 1:01 pm (0.6 ft)
Next high tide : in 4h 47m at 7:29 am (1.1 ft)
Sunset today : 7:19 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waning Gibbous (73% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:291.07:071.41:290.112:480.46:137:20Waxing Crescent1Sun
2Mon8:411.17:501.22:070.12:090.66:137:20First Quarter2Mon
3Tue9:561.28:380.92:470.13:530.76:147:19First Quarter3Tue
4Wed11:051.49:440.73:280.16:000.66:147:19First Quarter4Wed
5Thu12:031.54:130.27:460.56:157:18First Quarter5Thu
6Fri12:511.65:010.28:400.46:157:17Waxing Gibbous6Fri
7Sat12:180.61:341.65:490.19:140.46:157:17Waxing Gibbous7Sat
8Sun1:140.62:121.76:360.19:400.36:167:16Waxing Gibbous8Sun
9Mon1:590.62:481.77:200.110:030.36:167:16Waxing Gibbous9Mon
10Tue2:370.63:211.78:010.110:280.36:167:15Full Moon10Tue
11Wed3:120.73:521.78:390.110:530.26:177:14Full Moon11Wed
12Thu3:470.74:221.79:160.111:190.26:177:14Full Moon12Thu
13Fri4:220.84:501.69:520.111:460.26:187:13Full Moon13Fri
14Sat5:010.85:181.510:300.26:187:12Waning Gibbous14Sat
15Sun5:430.95:451.412:130.211:11 AM0.36:187:11Waning Gibbous15Sun
16Mon6:321.06:121.312:400.212:010.56:197:11Waning Gibbous16Mon
17Tue7:301.16:431.11:090.21:090.66:197:10Waning Gibbous17Tue
18Wed8:411.27:190.91:400.22:480.76:197:09Third Quarter18Wed
19Thu9:571.38:140.82:200.24:540.76:207:08Third Quarter19Thu
20Fri11:071.510:000.63:100.26:440.56:207:08Third Quarter20Fri
21Sat12:071.64:110.17:470.46:207:07Third Quarter21Sat
22Sun12:591.85:160.18:300.36:217:06Waning Crescent22Sun
23Mon12:500.61:471.96:180.09:070.26:217:05Waning Crescent23Mon
24Tue1:470.72:322.07:16-0.19:420.16:217:04Waning Crescent24Tue
25Wed2:380.83:152.08:10-0.110:150.16:217:03New Moon25Wed
26Thu3:260.93:561.99:030.010:480.16:227:02New Moon26Thu
27Fri4:151.04:351.89:550.011:200.16:227:02New Moon27Fri
28Sat5:041.15:131.610:480.211:520.16:227:01Waxing Crescent28Sat
29Sun5:561.25:491.411:450.36:237:00Waxing Crescent29Sun
30Mon6:511.36:251.212:240.112:500.56:236:59Waxing Crescent30Mon
31Tue7:521.37:030.912:560.22:090.66:236:58First Quarter31Tue
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 10:15 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 transitional phase. Tonight's moon is 73% 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 shifting between spring and neap.

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 Gibbous (73% illuminated). This places Nonopapa, Niihau Island, HI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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