Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 11:41 am (0.3 ft)
Next high tide : in 4h 10m at 7:00 am (0.6 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Sep 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:571.46:580.912:510.12:270.66:246:57First Quarter1Mon
2Tue9:121.57:560.71:300.14:300.66:246:56First Quarter2Tue
3Wed10:291.69:510.62:210.26:360.56:246:55First Quarter3Wed
4Thu11:371.711:370.53:290.27:390.46:246:55First Quarter4Thu
5Fri12:351.84:470.28:170.36:256:54Waxing Gibbous5Fri
6Sat12:470.61:241.85:570.28:480.26:256:53Waxing Gibbous6Sat
7Sun1:380.72:071.86:570.19:140.26:256:52Waxing Gibbous7Sun
8Mon2:200.82:451.87:480.19:390.26:256:51Full Moon8Mon
9Tue2:590.93:201.78:350.110:030.26:266:50Full Moon9Tue
10Wed3:371.03:521.69:190.210:260.26:266:49Full Moon10Wed
11Thu4:141.14:211.510:020.210:480.26:266:48Full Moon11Thu
12Fri4:511.24:481.310:460.311:110.26:266:47Waning Gibbous12Fri
13Sat5:291.35:141.211:330.411:330.26:276:46Waning Gibbous13Sat
14Sun6:091.35:371.012:270.56:276:45Waning Gibbous14Sun
15Mon6:551.35:580.81:340.66:276:44Waning Gibbous15Mon
16Tue7:521.36:190.712:230.33:100.66:286:43Third Quarter16Tue
17Wed9:051.312:550.36:286:42Third Quarter17Wed
18Thu10:221.310:380.51:470.47:060.56:286:41Third Quarter18Thu
19Fri11:271.43:120.47:270.46:286:40Third Quarter19Fri
20Sat12:000.612:181.54:390.37:500.36:296:39Waning Crescent20Sat
21Sun12:450.61:011.65:450.38:140.26:296:38Waning Crescent21Sun
22Mon1:230.71:391.76:400.28:380.26:296:37Waning Crescent22Mon
23Tue1:590.92:151.77:290.19:030.16:296:36Waning Crescent23Tue
24Wed2:371.02:501.78:180.19:290.16:306:35New Moon24Wed
25Thu3:171.23:251.69:080.19:550.16:306:34New Moon25Thu
26Fri3:591.44:001.410:010.210:210.06:306:33New Moon26Fri
27Sat4:441.54:351.310:580.310:490.06:316:32Waxing Crescent27Sat
28Sun5:321.65:121.012:020.46:316:31Waxing Crescent28Sun
29Mon6:261.75:530.81:190.46:316:30Waxing Crescent29Mon
30Tue7:281.76:450.62:560.56:316:29Waxing Crescent30Tue
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 9:20 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 79% 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 (79% 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