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 1h 06m 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 - Dec 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:411.310:390.91:540.54:030.07:035:57First Quarter1Sat
2Sun9:411.211:411.23:470.64:450.07:045:57First Quarter2Sun
3Mon10:431.05:300.65:26-0.17:055:57First Quarter3Mon
4Tue12:321.411:44 AM0.96:550.56:05-0.17:055:57Waxing Gibbous4Tue
5Wed1:191.612:410.88:050.46:45-0.27:065:57Waxing Gibbous5Wed
6Thu2:031.81:350.79:030.37:25-0.27:065:57Waxing Gibbous6Thu
7Fri2:451.92:260.79:540.28:06-0.27:075:58Full Moon7Fri
8Sat3:271.93:160.610:410.18:47-0.27:085:58Full Moon8Sat
9Sun4:091.94:050.611:250.19:29-0.17:085:58Full Moon9Sun
10Mon4:491.94:540.612:070.17:095:58Waning Gibbous10Mon
11Tue5:291.85:470.612:480.17:105:59Waning Gibbous11Tue
12Wed6:091.66:460.61:290.17:105:59Waning Gibbous12Wed
13Thu6:481.57:570.62:110.17:115:59Waning Gibbous13Thu
14Fri7:271.39:180.712:330.42:530.17:116:00Third Quarter14Fri
15Sat8:101.110:350.91:460.53:350.17:126:00Third Quarter15Sat
16Sun8:571.011:361.03:240.64:150.17:126:01Third Quarter16Sun
17Mon9:540.85:080.64:540.17:136:01Third Quarter17Mon
18Tue12:221.210:56 AM0.76:380.65:310.07:146:02Waning Crescent18Tue
19Wed1:011.311:54 AM0.77:450.56:070.07:146:02Waning Crescent19Wed
20Thu1:371.412:460.68:340.46:43-0.17:156:03Waning Crescent20Thu
21Fri2:111.51:330.69:150.37:19-0.17:156:03Waning Crescent21Fri
22Sat2:451.62:160.59:530.27:55-0.17:166:04New Moon22Sat
23Sun3:201.72:580.510:300.18:32-0.27:166:04New Moon23Sun
24Mon3:561.83:420.511:070.19:11-0.27:166:05New Moon24Mon
25Tue4:321.84:280.611:440.19:52-0.17:176:05New Moon25Tue
26Wed5:091.75:190.612:220.07:176:06Waxing Crescent26Wed
27Thu5:471.76:180.71:000.07:186:06Waxing Crescent27Thu
28Fri6:271.57:270.71:400.07:186:07Waxing Crescent28Fri
29Sat7:091.38:470.912:310.32:220.07:186:08First Quarter29Sat
30Sun7:561.110:081.11:570.53:07-0.17:196:08First Quarter30Sun
31Mon8:520.911:191.23:500.64:00-0.17:196:09First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1610367)

Common Questions About Nonopapa, Niihau Island, HI Tides

Show All
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