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 3h 15m at 7:11 am (-0.2 ft)
Next high tide : 2:53 pm (2.0 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 - Aug 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:141.16:521.01:230.12:010.76:137:21Third Quarter1Thu
2Fri9:291.37:290.81:580.14:030.76:137:20Third Quarter2Fri
3Sat10:421.48:380.62:430.16:160.66:147:19Third Quarter3Sat
4Sun11:461.610:430.53:400.17:390.56:147:19Third Quarter4Sun
5Mon12:411.84:450.08:230.36:157:18Waning Crescent5Mon
6Tue12:130.51:301.95:490.08:580.26:157:18Waning Crescent6Tue
7Wed1:190.62:162.06:49-0.19:320.26:157:17Waning Crescent7Wed
8Thu2:150.72:592.07:46-0.110:040.16:167:16New Moon8Thu
9Fri3:060.83:391.98:40-0.110:360.16:167:16New Moon9Fri
10Sat3:560.94:181.89:320.011:070.16:167:15New Moon10Sat
11Sun4:451.14:541.710:240.111:380.16:177:14Waxing Crescent11Sun
12Mon5:361.25:291.511:180.36:177:14Waxing Crescent12Mon
13Tue6:291.26:031.212:080.112:180.46:177:13Waxing Crescent13Tue
14Wed7:261.36:341.012:390.11:280.66:187:12Waxing Crescent14Wed
15Thu8:321.37:050.81:120.12:590.76:187:12First Quarter15Thu
16Fri9:441.47:390.71:500.25:190.66:197:11First Quarter16Fri
17Sat10:561.49:510.62:400.27:480.56:197:10First Quarter17Sat
18Sun11:571.511:360.53:440.38:130.46:197:09First Quarter18Sun
19Mon12:461.54:530.28:320.46:207:09Waxing Gibbous19Mon
20Tue12:380.61:271.65:540.28:500.36:207:08Waxing Gibbous20Tue
21Wed1:230.62:031.66:440.29:090.36:207:07Waxing Gibbous21Wed
22Thu2:000.72:351.67:280.19:290.36:207:06Waxing Gibbous22Thu
23Fri2:340.83:041.68:080.19:510.26:217:05Full Moon23Fri
24Sat3:090.93:321.68:470.110:140.26:217:04Full Moon24Sat
25Sun3:441.03:591.59:260.210:370.26:217:04Full Moon25Sun
26Mon4:201.14:251.410:080.210:590.16:227:03Full Moon26Mon
27Tue4:591.24:521.310:540.311:230.16:227:02Waning Gibbous27Tue
28Wed5:431.35:191.211:470.411:480.16:227:01Waning Gibbous28Wed
29Thu6:331.35:471.012:540.56:237:00Waning Gibbous29Thu
30Fri7:351.46:190.812:180.12:260.66:236:59Waning Gibbous30Fri
31Sat8:501.57:040.612:570.14:320.66:236:58Third Quarter31Sat
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 11:02 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