Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 2h 08m at 5:59 am (0.0 ft)
Next high tide : 1:48 pm (1.6 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - May 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:000.92:521.38:10-0.19:130.16:097:06Waxing Gibbous1Fri
2Sat2:330.83:241.38:36-0.19:560.16:087:07Full Moon2Sat
3Sun3:060.83:561.49:02-0.110:390.16:077:07Full Moon3Sun
4Mon3:400.74:311.59:29-0.111:250.16:077:08Full Moon4Mon
5Tue4:150.65:081.59:57-0.16:067:08Full Moon5Tue
6Wed4:540.55:501.512:130.110:29 AM-0.16:067:08Waning Gibbous6Wed
7Thu5:400.56:361.51:070.111:05 AM0.06:057:09Waning Gibbous7Thu
8Fri6:420.47:301.42:060.111:50 AM0.06:057:09Waning Gibbous8Fri
9Sat8:090.48:301.43:090.112:510.26:047:10Third Quarter9Sat
10Sun9:490.59:351.34:080.02:220.36:037:10Third Quarter10Sun
11Mon11:090.710:391.24:590.04:080.36:037:11Third Quarter11Mon
12Tue12:080.95:43-0.15:390.36:037:11Third Quarter12Tue
13Wed12:581.16:22-0.26:550.36:027:12Waning Crescent13Wed
14Thu12:311.11:431.46:59-0.28:000.26:027:12Waning Crescent14Thu
15Fri1:211.02:261.57:34-0.28:580.16:017:12Waning Crescent15Fri
16Sat2:090.93:081.78:10-0.39:530.16:017:13New Moon16Sat
17Sun2:550.83:491.78:46-0.310:450.16:007:13New Moon17Sun
18Mon3:410.74:311.79:22-0.211:350.16:007:14New Moon18Mon
19Tue4:270.65:121.79:58-0.26:007:14Waxing Crescent19Tue
20Wed5:160.55:551.612:240.110:36 AM-0.15:597:15Waxing Crescent20Wed
21Thu6:100.56:381.51:150.111:16 AM0.05:597:15Waxing Crescent21Thu
22Fri7:160.57:251.42:070.112:010.25:597:16Waxing Crescent22Fri
23Sat8:370.58:151.23:000.112:580.35:587:16First Quarter23Sat
24Sun10:050.69:091.13:510.12:170.45:587:16First Quarter24Sun
25Mon11:170.710:061.04:370.13:510.55:587:17First Quarter25Mon
26Tue12:080.95:160.05:190.55:587:17First Quarter26Tue
27Wed12:481.05:510.06:310.55:587:18Waxing Gibbous27Wed
28Thu1:231.26:230.07:310.45:577:18Waxing Gibbous28Thu
29Fri12:330.81:561.36:53-0.18:220.35:577:19Waxing Gibbous29Fri
30Sat1:150.72:291.47:22-0.19:090.35:577:19Waxing Gibbous30Sat
31Sun1:550.73:031.57:52-0.19:530.25:577:19Full Moon31Sun
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 9:53 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 86% 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 Waxing Gibbous (86% 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