Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 3:40 pm (0.6 ft)
Next high tide : in 2h 17m at 10:39 am (0.9 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : First Quarter (50% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:541.310:310.74:030.27:220.66:137:20Third Quarter1Sun
2Mon12:401.44:480.28:230.56:147:20Waning Crescent2Mon
3Tue1:211.55:340.28:580.46:147:19Waning Crescent3Tue
4Wed12:510.61:581.66:200.19:270.36:147:18Waning Crescent4Wed
5Thu1:390.62:341.77:030.19:550.36:157:18Waning Crescent5Thu
6Fri2:200.63:091.87:450.010:240.26:157:17New Moon6Fri
7Sat2:590.63:421.88:250.010:540.26:167:17New Moon7Sat
8Sun3:380.74:161.89:050.011:230.26:167:16New Moon8Sun
9Mon4:190.74:491.89:460.011:530.26:167:15New Moon9Mon
10Tue5:040.85:221.710:310.16:177:15Waxing Crescent10Tue
11Wed5:550.95:561.512:230.111:21 AM0.36:177:14Waxing Crescent11Wed
12Thu6:531.06:311.312:540.112:220.46:177:13Waxing Crescent12Thu
13Fri8:011.17:091.11:270.11:440.66:187:13Waxing Crescent13Fri
14Sat9:171.37:550.92:040.13:330.76:187:12First Quarter14Sat
15Sun10:321.59:080.72:480.15:380.66:187:11First Quarter15Sun
16Mon11:381.610:500.63:410.17:180.56:197:10First Quarter16Mon
17Tue12:351.84:420.18:160.46:197:10Waxing Gibbous17Tue
18Wed12:150.61:261.95:450.08:560.36:197:09Waxing Gibbous18Wed
19Thu1:190.62:111.96:440.09:310.26:207:08Waxing Gibbous19Thu
20Fri2:110.72:541.97:370.010:020.26:207:07Full Moon20Fri
21Sat2:580.83:331.98:270.010:320.26:207:06Full Moon21Sat
22Sun3:410.94:101.89:140.011:000.26:217:06Full Moon22Sun
23Mon4:240.94:441.710:000.111:280.26:217:05Full Moon23Mon
24Tue5:071.05:161.510:450.211:540.26:217:04Waning Gibbous24Tue
25Wed5:511.15:451.311:330.46:227:03Waning Gibbous25Wed
26Thu6:391.16:131.212:220.212:270.56:227:02Waning Gibbous26Thu
27Fri7:331.26:391.012:500.21:350.66:227:01Waning Gibbous27Fri
28Sat8:371.27:060.81:210.33:090.76:237:00Third Quarter28Sat
29Sun9:501.37:480.71:590.35:220.66:236:59Third Quarter29Sun
30Mon11:001.310:260.62:490.37:230.56:236:59Third Quarter30Mon
31Tue11:581.411:560.63:550.37:550.46:236:58Third Quarter31Tue
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 1:09 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 neap phase. Tonight's moon is 50% 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 minimum.

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 (50% illuminated). This places Nonopapa, Niihau Island, HI in a neap tide cycle, so tidal ranges are near their weekly minimum 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