Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 4h 45m at 5:59 am (0.0 ft)
Next high tide : 1:48 pm (1.6 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Jul 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:000.63:561.88:37-0.111:050.16:017:28Full Moon1Wed
2Thu3:480.64:361.89:19-0.111:460.16:017:28Full Moon2Thu
3Fri4:390.75:171.810:04-0.16:027:28Waning Gibbous3Fri
4Sat5:340.75:591.712:280.010:52 AM0.06:027:28Waning Gibbous4Sat
5Sun6:370.76:421.61:100.011:48 AM0.26:027:28Waning Gibbous5Sun
6Mon7:480.87:291.41:540.012:550.46:037:28Waning Gibbous6Mon
7Tue9:071.08:211.22:400.02:220.56:037:28Third Quarter7Tue
8Wed10:241.19:211.03:270.04:070.66:037:28Third Quarter8Wed
9Thu11:301.310:290.94:140.05:510.66:047:28Third Quarter9Thu
10Fri12:261.55:020.07:180.56:047:28Waning Crescent10Fri
11Sat1:151.65:48-0.18:220.46:057:27Waning Crescent11Sat
12Sun12:410.71:581.76:34-0.19:110.36:057:27Waning Crescent12Sun
13Mon1:360.72:391.87:17-0.19:510.26:057:27Waning Crescent13Mon
14Tue2:260.73:171.87:59-0.110:270.26:067:27New Moon14Tue
15Wed3:110.73:531.88:400.011:000.26:067:27New Moon15Wed
16Thu3:550.74:281.79:200.011:310.26:077:27New Moon16Thu
17Fri4:370.75:011.610:000.16:077:26New Moon17Fri
18Sat5:210.85:331.612:030.210:40 AM0.26:077:26Waxing Crescent18Sat
19Sun6:070.86:041.412:350.211:22 AM0.36:087:26Waxing Crescent19Sun
20Mon7:000.86:351.31:090.212:080.46:087:25Waxing Crescent20Mon
21Tue8:020.97:071.21:450.21:060.56:097:25Waxing Crescent21Tue
22Wed9:130.97:441.02:230.22:240.66:097:25First Quarter22Wed
23Thu10:241.08:320.93:050.24:030.76:097:24First Quarter23Thu
24Fri11:241.29:410.83:500.25:410.66:107:24First Quarter24Fri
25Sat12:131.34:360.16:590.56:107:24First Quarter25Sat
26Sun12:561.55:230.17:540.46:117:23Waxing Gibbous26Sun
27Mon12:090.71:361.66:090.08:380.36:117:23Waxing Gibbous27Mon
28Tue1:070.72:161.76:550.09:170.36:117:22Waxing Gibbous28Tue
29Wed1:580.72:551.87:41-0.19:550.26:127:22Full Moon29Wed
30Thu2:470.83:341.98:27-0.110:320.16:127:21Full Moon30Thu
31Fri3:360.84:141.99:14-0.111:090.16:137:21Full Moon31Fri
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 9:53 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 86% 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 Waxing Gibbous (86% 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