Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 12:39 pm (0.3 ft)
Next high tide : in 3h 10m at 8:02 am (0.6 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Feb 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:471.56:380.912:41-0.17:186:30Waxing Crescent1Sat
2Sun6:211.27:441.012:090.21:12-0.17:186:31Waxing Crescent2Sun
3Mon6:541.09:001.11:270.41:46-0.17:176:31First Quarter3Mon
4Tue7:280.710:201.33:200.52:26-0.17:176:32First Quarter4Tue
5Wed8:120.511:331.46:100.53:17-0.17:166:33First Quarter5Wed
6Thu10:310.38:160.34:21-0.17:166:33First Quarter6Thu
7Fri12:341.512:170.38:510.25:30-0.17:156:34Waxing Gibbous7Fri
8Sat1:251.61:240.39:190.16:34-0.17:156:34Waxing Gibbous8Sat
9Sun2:101.72:130.49:450.07:29-0.27:146:35Waxing Gibbous9Sun
10Mon2:501.72:540.510:090.08:17-0.27:146:35Full Moon10Mon
11Tue3:261.63:330.610:320.09:00-0.27:136:36Full Moon11Tue
12Wed3:581.64:100.710:530.09:41-0.17:136:37Full Moon12Wed
13Thu4:281.54:470.811:150.010:220.07:126:37Full Moon13Thu
14Fri4:541.45:250.811:360.011:030.17:116:38Waning Gibbous14Fri
15Sat5:191.26:050.911:580.011:470.27:116:38Waning Gibbous15Sat
16Sun5:401.06:500.912:200.07:106:39Waning Gibbous16Sun
17Mon5:580.97:421.012:400.312:420.07:106:39Waning Gibbous17Mon
18Tue6:120.78:501.01:510.51:070.07:096:40Third Quarter18Tue
19Wed6:160.510:111.13:430.51:400.07:086:40Third Quarter19Wed
20Thu11:251.12:310.17:076:41Third Quarter20Thu
21Fri3:510.17:076:41Third Quarter21Fri
22Sat12:221.312:080.38:360.25:110.07:066:42Waning Crescent22Sat
23Sun1:081.41:040.38:470.16:15-0.17:056:42Waning Crescent23Sun
24Mon1:481.51:470.49:070.07:09-0.27:056:42Waning Crescent24Mon
25Tue2:251.62:270.59:310.07:58-0.27:046:43Waning Crescent25Tue
26Wed3:011.63:080.79:56-0.18:47-0.27:036:43New Moon26Wed
27Thu3:351.63:510.810:21-0.19:36-0.27:026:44New Moon27Thu
28Fri4:091.54:361.010:47-0.210:28-0.17:016:44New Moon28Fri
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 10:20 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 transitional phase. Tonight's moon is 29% 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 Waxing Crescent (29% 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