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 : 3:47 am (0.0 ft)
Next high tide (tomorrow) : in 31m at 8:27 pm (1.3 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : First Quarter (40% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Jul 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:560.54:371.79:170.011:540.16:017:28New Moon1Mon
2Tue4:380.65:091.79:540.06:017:28Waxing Crescent2Tue
3Wed5:230.65:411.612:260.110:34 AM0.16:027:28Waxing Crescent3Wed
4Thu6:160.76:131.512:580.111:19 AM0.26:027:28Waxing Crescent4Thu
5Fri7:180.86:481.41:310.112:140.46:027:28Waxing Crescent5Fri
6Sat8:300.97:261.22:060.11:310.56:037:28First Quarter6Sat
7Sun9:461.18:121.02:440.03:160.66:037:28First Quarter7Sun
8Mon10:541.39:130.83:250.05:110.66:047:28First Quarter8Mon
9Tue11:541.510:330.74:120.06:510.56:047:28First Quarter9Tue
10Wed12:461.75:02-0.18:020.46:047:28Waxing Gibbous10Wed
11Thu1:351.85:54-0.18:550.36:057:27Waxing Gibbous11Thu
12Fri1:040.62:212.06:47-0.29:390.26:057:27Waxing Gibbous12Fri
13Sat2:040.63:052.07:39-0.210:190.16:067:27Full Moon13Sat
14Sun2:590.63:482.08:30-0.210:560.16:067:27Full Moon14Sun
15Mon3:520.74:291.99:20-0.111:330.16:067:27Full Moon15Mon
16Tue4:440.85:081.810:100.06:077:26Waning Gibbous16Tue
17Wed5:360.95:461.612:080.011:00 AM0.26:077:26Waning Gibbous17Wed
18Thu6:320.96:221.412:420.111:53 AM0.36:087:26Waning Gibbous18Thu
19Fri7:331.06:571.21:170.112:540.56:087:26Waning Gibbous19Fri
20Sat8:401.17:321.01:530.12:100.66:087:25Third Quarter20Sat
21Sun9:521.28:110.92:310.13:510.76:097:25Third Quarter21Sun
22Mon11:001.39:120.73:130.16:020.76:097:25Third Quarter22Mon
23Tue11:581.410:430.64:010.17:480.66:107:24Third Quarter23Tue
24Wed12:451.54:510.18:300.56:107:24Waning Crescent24Wed
25Thu1:261.55:410.18:580.46:107:24Waning Crescent25Thu
26Fri12:560.62:021.66:280.19:230.36:117:23Waning Crescent26Fri
27Sat1:420.62:361.77:110.09:480.36:117:23Waning Crescent27Sat
28Sun2:220.63:081.77:520.010:140.26:127:22New Moon28Sun
29Mon3:010.73:391.78:310.010:410.26:127:22New Moon29Mon
30Tue3:400.74:101.79:110.011:080.26:127:21New Moon30Tue
31Wed4:200.84:401.79:510.111:360.16:137:21New Moon31Wed
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 12:07 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 neap phase. Tonight's moon is 40% 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 (40% 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