Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 3h 57m at 11:41 am (0.3 ft)
Next high tide : 6:47 pm (1.4 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - May 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:240.74:161.49:16-0.111:060.26:097:06New Moon1Thu
2Fri3:520.64:481.59:38-0.111:540.26:087:07New Moon2Fri
3Sat4:200.55:231.510:00-0.16:077:07Waxing Crescent3Sat
4Sun4:500.46:021.412:460.210:23 AM-0.16:077:08Waxing Crescent4Sun
5Mon5:240.36:481.41:480.210:50 AM0.06:067:08Waxing Crescent5Mon
6Tue6:160.37:441.33:010.211:23 AM0.06:067:08Waxing Crescent6Tue
7Wed8:120.28:491.34:160.112:110.16:057:09First Quarter7Wed
8Thu10:260.39:541.35:110.11:430.26:057:09First Quarter8Thu
9Fri11:360.510:531.35:480.03:440.36:047:10First Quarter9Fri
10Sat12:230.76:180.05:190.36:047:10First Quarter10Sat
11Sun1:050.96:46-0.16:360.36:037:11Waxing Gibbous11Sun
12Mon12:331.21:451.27:14-0.27:440.26:037:11Waxing Gibbous12Mon
13Tue1:181.12:271.57:42-0.28:480.26:027:11Waxing Gibbous13Tue
14Wed2:020.93:091.78:12-0.39:500.16:027:12Full Moon14Wed
15Thu2:470.83:531.88:43-0.310:500.16:017:12Full Moon15Thu
16Fri3:320.64:381.99:16-0.311:520.16:017:13Full Moon16Fri
17Sat4:200.55:251.99:51-0.36:007:13Waning Gibbous17Sat
18Sun5:130.46:151.812:550.010:29 AM-0.26:007:14Waning Gibbous18Sun
19Mon6:170.37:091.72:010.011:11 AM-0.16:007:14Waning Gibbous19Mon
20Tue7:430.38:071.53:080.012:000.15:597:15Waning Gibbous20Tue
21Wed9:300.49:081.44:110.01:110.25:597:15Third Quarter21Wed
22Thu11:040.510:081.35:020.02:540.45:597:15Third Quarter22Thu
23Fri12:040.75:400.04:370.45:587:16Third Quarter23Fri
24Sat12:470.96:090.06:020.55:587:16Third Quarter24Sat
25Sun1:221.16:340.07:110.45:587:17Waning Crescent25Sun
26Mon12:300.91:541.26:57-0.18:090.45:587:17Waning Crescent26Mon
27Tue1:080.82:251.47:19-0.19:000.35:587:18Waning Crescent27Tue
28Wed1:430.72:551.57:42-0.19:470.35:577:18Waning Crescent28Wed
29Thu2:180.63:261.68:06-0.110:320.25:577:19New Moon29Thu
30Fri2:520.53:581.68:31-0.111:160.25:577:19New Moon30Fri
31Sat3:270.54:311.68:58-0.15:577:19New Moon31Sat
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 3:14 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 transitional phase. Tonight's moon is 79% 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 Waning Gibbous (79% 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