Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 11:46 pm (0.2 ft)
Next high tide : in 4h 05m at 4:42 pm (1.7 ft)
Sunset today : 7:21 pm
Sunrise tomorrow : 6:12 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Mar 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:241.25:021.010:49-0.111:000.17:016:45Full Moon1Wed
2Thu4:481.05:381.111:10-0.111:440.27:006:45Waning Gibbous2Thu
3Fri5:100.96:171.111:32-0.16:596:46Waning Gibbous3Fri
4Sat5:300.77:021.112:350.311:55 AM0.06:586:46Waning Gibbous4Sat
5Sun5:480.68:011.11:400.412:200.06:576:46Waning Gibbous5Sun
6Mon6:020.59:191.13:160.412:530.06:576:47Third Quarter6Mon
7Tue10:401.11:460.16:566:47Third Quarter7Tue
8Wed11:441.23:160.16:556:47Third Quarter8Wed
9Thu11:520.37:410.24:480.16:546:48Third Quarter9Thu
10Fri12:331.312:460.47:580.15:580.06:536:48Waning Crescent10Fri
11Sat1:151.41:290.58:200.06:56-0.16:526:49Waning Crescent11Sat
12Sun1:521.42:090.78:44-0.17:49-0.16:516:49Waning Crescent12Sun
13Mon2:281.52:500.99:09-0.18:41-0.16:506:49New Moon13Mon
14Tue3:041.43:321.19:35-0.29:33-0.16:496:50New Moon14Tue
15Wed3:391.34:161.310:02-0.210:280.06:486:50New Moon15Wed
16Thu4:151.15:021.410:30-0.311:260.06:486:50New Moon16Thu
17Fri4:510.95:511.511:00-0.36:476:51Waxing Crescent17Fri
18Sat5:290.76:461.512:310.111:32 AM-0.26:466:51Waxing Crescent18Sat
19Sun6:100.57:501.41:500.212:09-0.26:456:51Waxing Crescent19Sun
20Mon7:070.49:061.43:330.212:55-0.16:446:52First Quarter20Mon
21Tue9:050.310:241.45:370.22:040.06:436:52First Quarter21Tue
22Wed11:100.311:331.36:460.13:440.16:426:52First Quarter22Wed
23Thu12:240.47:230.05:160.16:416:53First Quarter23Thu
24Fri12:291.31:130.67:510.06:270.16:406:53Waxing Gibbous24Fri
25Sat1:141.31:520.78:130.07:230.16:396:53Waxing Gibbous25Sat
26Sun1:511.32:270.98:33-0.18:120.06:386:54Waxing Gibbous26Sun
27Mon2:241.23:001.08:52-0.18:560.16:376:54Full Moon27Mon
28Tue2:541.13:311.19:11-0.19:380.16:366:54Full Moon28Tue
29Wed3:211.04:031.29:31-0.110:200.16:356:55Full Moon29Wed
30Thu3:480.94:351.39:51-0.111:030.16:346:55Full Moon30Thu
31Fri4:130.85:071.310:12-0.111:480.26:346:55Waning Gibbous31Fri
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 8:14 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 spring phase. Tonight's moon is 98% 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 Full Moon (98% 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