Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 4h 34m at 12:37 am (0.1 ft)
Next high tide : 6:29 am (1.0 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waning Gibbous (89% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Nov 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:111.72:521.19:420.28:54-0.16:446:04New Moon1Wed
2Thu3:551.93:340.910:430.29:24-0.16:456:04New Moon2Thu
3Fri4:402.04:170.711:470.29:57-0.16:456:03Waxing Crescent3Fri
4Sat5:292.05:050.612:550.36:466:03Waxing Crescent4Sat
5Sun6:211.96:060.42:120.36:466:02Waxing Crescent5Sun
6Mon7:191.87:400.43:350.26:476:02Waxing Crescent6Mon
7Tue8:241.69:470.44:470.26:476:01First Quarter7Tue
8Wed9:311.511:230.61:140.45:360.26:486:01First Quarter8Wed
9Thu10:341.43:100.56:100.16:486:00First Quarter9Thu
10Fri12:160.811:27 AM1.44:500.56:360.16:496:00First Quarter10Fri
11Sat12:541.012:111.36:070.56:570.16:505:59Waxing Gibbous11Sat
12Sun1:281.112:491.27:090.57:170.16:505:59Waxing Gibbous12Sun
13Mon1:581.31:231.08:020.47:360.06:515:59Waxing Gibbous13Mon
14Tue2:281.41:540.98:510.47:570.06:515:58Waxing Gibbous14Tue
15Wed2:571.52:240.89:370.48:180.06:525:58Full Moon15Wed
16Thu3:271.62:540.710:220.38:400.06:535:58Full Moon16Thu
17Fri3:581.73:250.611:070.39:030.06:535:58Full Moon17Fri
18Sat4:321.73:560.511:560.39:290.06:545:57Full Moon18Sat
19Sun5:081.74:300.512:490.36:555:57Waning Gibbous19Sun
20Mon5:491.65:110.41:490.36:555:57Waning Gibbous20Mon
21Tue6:351.66:180.42:540.36:565:57Waning Gibbous21Tue
22Wed7:281.68:190.43:540.26:575:57Waning Gibbous22Wed
23Thu8:261.510:140.512:000.34:380.26:575:57Third Quarter23Thu
24Fri9:251.411:220.71:370.45:120.16:585:56Third Quarter24Fri
25Sat10:221.43:390.55:420.06:585:56Third Quarter25Sat
26Sun12:101.011:15 AM1.35:190.56:100.06:595:56Waning Crescent26Sun
27Mon12:521.212:041.16:410.56:39-0.17:005:56Waning Crescent27Mon
28Tue1:341.512:521.07:530.47:08-0.27:005:56Waning Crescent28Tue
29Wed2:161.81:400.88:580.37:40-0.27:015:56Waning Crescent29Wed
30Thu2:581.92:280.79:590.28:15-0.27:025:56New Moon30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1610367)

Common Questions About Nonopapa, Niihau Island, HI Tides

Show All
What time does the tide turn (slack tide) in Nonopapa, Niihau Island, HI today?

Slack tide in Nonopapa, Niihau Island, HI is approximately 3:33 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 89% 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 Gibbous (89% 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