Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 7h 26m at 10:27 pm (0.1 ft)
Next high tide (tomorrow) : 2:39 am (0.5 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:05 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Dec 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:082.02:440.610:260.28:22-0.37:035:57Full Moon1Sat
2Sun3:542.13:370.511:200.19:05-0.27:035:57Full Moon2Sun
3Mon4:412.14:320.512:120.17:045:57Full Moon3Mon
4Tue5:282.05:330.51:040.17:055:57Waning Gibbous4Tue
5Wed6:171.96:440.51:550.17:055:57Waning Gibbous5Wed
6Thu7:061.78:080.62:450.17:065:57Waning Gibbous6Thu
7Fri7:561.59:380.712:400.33:310.17:075:57Third Quarter7Fri
8Sat8:481.310:560.92:060.54:120.17:075:58Third Quarter8Sat
9Sun9:411.111:551.13:510.64:480.07:085:58Third Quarter9Sun
10Mon10:350.95:390.65:210.07:085:58Third Quarter10Mon
11Tue12:411.311:29 AM0.87:130.65:510.07:095:59Waning Crescent11Tue
12Wed1:201.512:200.68:230.56:220.07:105:59Waning Crescent12Wed
13Thu1:551.61:080.69:140.46:520.07:105:59Waning Crescent13Thu
14Fri2:291.61:510.59:530.37:25-0.17:116:00Waning Crescent14Fri
15Sat3:031.72:310.510:270.27:59-0.17:116:00New Moon15Sat
16Sun3:361.73:090.511:000.28:33-0.17:126:00New Moon16Sun
17Mon4:101.73:460.411:330.29:07-0.17:136:01New Moon17Mon
18Tue4:431.74:240.412:080.27:136:01New Moon18Tue
19Wed5:161.75:070.512:440.17:146:02Waxing Crescent19Wed
20Thu5:501.65:580.51:200.17:146:02Waxing Crescent20Thu
21Fri6:231.57:020.51:560.17:156:03Waxing Crescent21Fri
22Sat6:571.48:210.62:320.17:156:03Waxing Crescent22Sat
23Sun7:341.39:440.812:420.43:070.17:166:04First Quarter23Sun
24Mon8:171.110:541.02:230.63:430.07:166:04First Quarter24Mon
25Tue9:090.911:501.34:300.64:20-0.17:176:05First Quarter25Tue
26Wed10:160.76:240.65:01-0.17:176:05Waxing Gibbous26Wed
27Thu12:401.511:32 AM0.67:500.45:45-0.27:176:06Waxing Gibbous27Thu
28Fri1:271.712:420.58:520.36:32-0.37:186:06Waxing Gibbous28Fri
29Sat2:121.91:450.59:420.27:21-0.37:186:07Waxing Gibbous29Sat
30Sun2:582.02:410.410:260.18:10-0.37:196:08Full Moon30Sun
31Mon3:432.03:380.511:080.09:03-0.37:196:08Full Moon31Mon
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 12:33 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