Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : 4:33 am (0.1 ft)
Next high tide : in 6m at 11:53 am (1.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (64% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - May 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:060.47:171.32:000.211:19 AM0.06:097:06Waning Gibbous1Sun
2Mon7:160.38:141.33:120.211:52 AM0.16:087:07Waning Gibbous2Mon
3Tue9:260.39:201.24:270.212:420.26:087:07Third Quarter3Tue
4Wed11:180.410:241.15:250.12:310.36:077:07Third Quarter4Wed
5Thu12:120.56:040.14:210.46:067:08Third Quarter5Thu
6Fri12:470.76:330.05:410.36:067:08Third Quarter6Fri
7Sat12:051.11:190.86:590.06:430.36:057:09Waning Crescent7Sat
8Sun12:451.11:491.07:24-0.17:380.36:057:09Waning Crescent8Sun
9Mon1:221.02:211.27:48-0.18:290.26:047:10Waning Crescent9Mon
10Tue1:580.92:541.38:12-0.29:210.26:047:10Waning Crescent10Tue
11Wed2:340.93:301.58:37-0.210:130.16:037:10New Moon11Wed
12Thu3:110.74:081.69:04-0.211:070.16:037:11New Moon12Thu
13Fri3:500.64:501.79:34-0.26:027:11New Moon13Fri
14Sat4:330.55:361.712:040.110:06 AM-0.26:027:12Waxing Crescent14Sat
15Sun5:230.46:271.71:070.110:43 AM-0.16:017:12Waxing Crescent15Sun
16Mon6:280.37:241.62:160.111:27 AM-0.16:017:13Waxing Crescent16Mon
17Tue8:020.38:261.53:260.012:240.16:007:13First Quarter17Tue
18Wed9:500.49:321.44:290.01:510.26:007:14First Quarter18Wed
19Thu11:150.610:341.35:180.03:390.36:007:14First Quarter19Thu
20Fri12:150.85:58-0.15:160.45:597:14First Quarter20Fri
21Sat1:011.06:31-0.16:370.45:597:15Waxing Gibbous21Sat
22Sun12:201.11:431.27:00-0.27:460.35:597:15Waxing Gibbous22Sun
23Mon1:051.02:211.47:28-0.28:460.35:587:16Waxing Gibbous23Mon
24Tue1:470.92:581.67:54-0.29:410.25:587:16Full Moon24Tue
25Wed2:270.73:341.78:21-0.210:310.25:587:17Full Moon25Wed
26Thu3:060.64:101.78:48-0.211:180.25:587:17Full Moon26Thu
27Fri3:440.54:461.79:16-0.15:577:18Full Moon27Fri
28Sat4:240.45:231.612:040.19:45 AM-0.15:577:18Waning Gibbous28Sat
29Sun5:060.46:021.612:510.110:16 AM0.05:577:18Waning Gibbous29Sun
30Mon5:560.46:431.51:410.110:49 AM0.15:577:19Waning Gibbous30Mon
31Tue7:030.37:291.42:330.111:26 AM0.25:577:19Waning Gibbous31Tue
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 8:13 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 64% 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 First Quarter (64% 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