Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 39m at 12:18 am (0.0 ft)
Next high tide : 5:24 am (0.7 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:06 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - May 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:570.73:591.58:49-0.210:580.16:087:07Full Moon1Sun
2Mon3:300.64:361.69:13-0.211:520.16:087:07Full Moon2Mon
3Tue4:050.45:181.69:40-0.26:077:07Waning Gibbous3Tue
4Wed4:430.46:061.612:510.110:12 AM-0.26:067:08Waning Gibbous4Wed
5Thu5:310.37:001.61:580.110:49 AM-0.16:067:08Waning Gibbous5Thu
6Fri6:470.28:011.53:100.111:36 AM0.06:057:09Waning Gibbous6Fri
7Sat8:460.29:051.54:140.112:450.16:057:09Third Quarter7Sat
8Sun10:350.410:081.45:030.02:340.36:047:10Third Quarter8Sun
9Mon11:440.611:041.35:40-0.14:270.36:047:10Third Quarter9Mon
10Tue12:350.96:12-0.15:590.36:037:10Waning Crescent10Tue
11Wed1:191.26:40-0.27:170.36:037:11Waning Crescent11Wed
12Thu12:421.02:011.47:08-0.28:250.36:027:11Waning Crescent12Thu
13Fri1:270.92:401.67:36-0.39:270.26:027:12Waning Crescent13Fri
14Sat2:100.73:201.78:04-0.310:240.26:017:12New Moon14Sat
15Sun2:520.63:591.88:34-0.311:180.16:017:13New Moon15Sun
16Mon3:350.54:391.89:05-0.26:017:13New Moon16Mon
17Tue4:190.45:201.712:100.19:37 AM-0.26:007:13Waxing Crescent17Tue
18Wed5:050.36:021.61:020.110:12 AM-0.16:007:14Waxing Crescent18Wed
19Thu5:590.36:481.51:550.110:49 AM0.05:597:14Waxing Crescent19Thu
20Fri7:120.37:361.42:500.111:31 AM0.15:597:15Waxing Crescent20Fri
21Sat8:510.38:281.33:430.112:260.25:597:15First Quarter21Sat
22Sun10:290.59:201.24:270.11:520.45:597:16First Quarter22Sun
23Mon11:340.610:101.15:020.13:370.55:587:16First Quarter23Mon
24Tue12:180.85:300.05:110.55:587:17First Quarter24Tue
25Wed12:531.05:560.06:290.55:587:17Waxing Gibbous25Wed
26Thu1:251.26:200.07:360.45:587:17Waxing Gibbous26Thu
27Fri12:210.81:571.46:43-0.18:350.35:577:18Waxing Gibbous27Fri
28Sat1:030.72:301.57:08-0.19:290.35:577:18Waxing Gibbous28Sat
29Sun1:450.63:051.77:35-0.210:200.25:577:19Full Moon29Sun
30Mon2:270.53:431.88:06-0.211:100.15:577:19Full Moon30Mon
31Tue3:110.44:251.88:41-0.25:577:20Full Moon31Tue
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 2:51 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 3% 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 New Moon (3% 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