Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 45m at 12:39 pm (0.3 ft)
Next high tide : 7:42 pm (1.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:310.52:281.96:460.010:090.26:137:20Waning Crescent1Thu
2Fri2:200.53:071.97:360.010:340.26:147:19New Moon2Fri
3Sat3:030.63:431.88:210.010:580.26:147:19New Moon3Sat
4Sun3:420.74:151.89:030.011:210.26:157:18New Moon4Sun
5Mon4:210.74:451.79:440.111:450.26:157:18New Moon5Mon
6Tue5:000.85:131.610:240.26:157:17Waxing Crescent6Tue
7Wed5:420.95:381.412:090.211:05 AM0.36:167:16Waxing Crescent7Wed
8Thu6:280.96:011.312:330.211:51 AM0.46:167:16Waxing Crescent8Thu
9Fri7:201.06:231.112:580.212:480.66:167:15Waxing Crescent9Fri
10Sat8:231.16:431.01:240.22:080.76:177:15First Quarter10Sat
11Sun9:351.27:020.81:540.24:050.76:177:14First Quarter11Sun
12Mon10:451.32:310.26:187:13First Quarter12Mon
13Tue11:461.43:210.26:187:12First Quarter13Tue
14Wed12:361.64:230.28:310.46:187:12Waxing Gibbous14Wed
15Thu12:000.51:211.75:270.18:570.36:197:11Waxing Gibbous15Thu
16Fri1:020.52:031.86:240.09:250.26:197:10Waxing Gibbous16Fri
17Sat1:510.62:421.97:180.09:530.26:197:09Waxing Gibbous17Sat
18Sun2:380.73:212.08:09-0.110:230.16:207:09Full Moon18Sun
19Mon3:240.83:581.98:590.010:520.16:207:08Full Moon19Mon
20Tue4:121.04:351.89:510.011:220.16:207:07Full Moon20Tue
21Wed5:031.15:111.610:460.211:520.06:217:06Waning Gibbous21Wed
22Thu5:571.25:471.411:470.36:217:05Waning Gibbous22Thu
23Fri6:561.46:231.112:230.11:000.56:217:04Waning Gibbous23Fri
24Sat8:031.47:010.912:560.12:370.66:217:04Third Quarter24Sat
25Sun9:171.57:530.71:340.14:550.66:227:03Third Quarter25Sun
26Mon10:341.69:520.52:210.27:190.56:227:02Third Quarter26Mon
27Tue11:421.711:430.53:250.28:070.46:227:01Third Quarter27Tue
28Wed12:391.74:410.28:380.36:237:00Waning Crescent28Wed
29Thu12:510.61:261.75:510.29:030.36:236:59Waning Crescent29Thu
30Fri1:380.62:071.76:480.29:240.26:236:58Waning Crescent30Fri
31Sat2:170.72:421.77:370.19:430.26:246:57Waning Crescent31Sat
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 4:10 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 29% 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 Waxing Crescent (29% 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