Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : 4:33 am (0.1 ft)
Next high tide : in 2h 13m at 11:53 am (1.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (64% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Nov 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:271.59:400.612:310.34:120.36:456:03First Quarter1Thu
2Fri9:311.411:010.82:040.44:590.26:456:03First Quarter2Fri
3Sat10:321.411:581.03:540.55:370.16:466:02First Quarter3Sat
4Sun11:281.35:260.56:130.06:466:02Waxing Gibbous4Sun
5Mon12:461.312:201.26:420.46:47-0.16:476:01Waxing Gibbous5Mon
6Tue1:301.51:081.17:480.37:21-0.16:476:01Waxing Gibbous6Tue
7Wed2:131.71:551.08:480.37:56-0.26:486:00Full Moon7Wed
8Thu2:571.92:420.99:440.28:32-0.26:496:00Full Moon8Thu
9Fri3:401.93:280.810:390.29:10-0.16:495:59Full Moon9Fri
10Sat4:242.04:160.711:320.29:48-0.16:505:59Full Moon10Sat
11Sun5:091.95:070.612:260.26:505:59Waning Gibbous11Sun
12Mon5:551.86:050.61:210.26:515:58Waning Gibbous12Mon
13Tue6:431.77:170.62:180.26:525:58Waning Gibbous13Tue
14Wed7:341.58:460.612:010.33:150.26:525:58Third Quarter14Wed
15Thu8:281.410:170.71:060.44:060.26:535:58Third Quarter15Thu
16Fri9:261.311:260.92:350.54:500.26:535:57Third Quarter16Fri
17Sat10:221.14:120.65:260.16:545:57Third Quarter17Sat
18Sun12:141.011:14 AM1.05:380.65:570.16:555:57Waning Crescent18Sun
19Mon12:531.212:001.06:470.56:260.16:555:57Waning Crescent19Mon
20Tue1:271.312:420.97:440.56:530.06:565:57Waning Crescent20Tue
21Wed1:591.41:200.88:320.47:210.06:575:56Waning Crescent21Wed
22Thu2:311.61:570.79:160.37:490.06:575:56Waning Crescent22Thu
23Fri3:041.62:340.79:580.38:180.06:585:56New Moon23Fri
24Sat3:371.73:100.610:400.28:49-0.16:595:56New Moon24Sat
25Sun4:121.73:490.611:230.29:21-0.16:595:56New Moon25Sun
26Mon4:491.74:320.612:070.27:005:56Waxing Crescent26Mon
27Tue5:281.75:220.512:540.27:015:56Waxing Crescent27Tue
28Wed6:101.76:250.51:420.27:015:56Waxing Crescent28Wed
29Thu6:551.67:470.62:310.17:025:56Waxing Crescent29Thu
30Fri7:451.59:190.712:230.33:180.17:035:56First Quarter30Fri
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 8:13 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 transitional phase. Tonight's moon is 64% 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 First Quarter (64% 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