Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 4h 09m at 12:39 pm (0.3 ft)
Next high tide : 7:42 pm (1.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Nov 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:451.63:120.810:320.49:020.06:456:03New Moon1Fri
2Sat4:171.63:400.711:200.49:230.06:456:03New Moon2Sat
3Sun4:521.74:090.612:130.46:466:02Waxing Crescent3Sun
4Mon5:321.64:420.51:150.46:466:02Waxing Crescent4Mon
5Tue6:191.65:250.42:270.36:476:01Waxing Crescent5Tue
6Wed7:141.66:500.43:450.36:476:01Waxing Crescent6Wed
7Thu8:171.59:240.44:430.26:486:00First Quarter7Thu
8Fri9:231.511:000.612:470.35:210.26:486:00First Quarter8Fri
9Sat10:231.511:550.82:530.45:520.16:496:00First Quarter9Sat
10Sun11:161.44:430.56:190.06:505:59First Quarter10Sun
11Mon12:401.112:041.36:080.46:470.06:505:59Waxing Gibbous11Mon
12Tue1:211.312:501.27:200.47:14-0.16:515:59Waxing Gibbous12Tue
13Wed2:031.61:341.08:270.37:43-0.26:515:58Waxing Gibbous13Wed
14Thu2:441.82:180.99:290.38:13-0.26:525:58Full Moon14Thu
15Fri3:272.03:020.710:300.28:46-0.26:535:58Full Moon15Fri
16Sat4:102.03:480.611:290.29:20-0.26:535:57Full Moon16Sat
17Sun4:552.04:370.512:300.26:545:57Waning Gibbous17Sun
18Mon5:421.95:330.41:320.26:555:57Waning Gibbous18Mon
19Tue6:321.86:470.42:370.26:555:57Waning Gibbous19Tue
20Wed7:261.68:260.43:400.26:565:57Waning Gibbous20Wed
21Thu8:231.510:130.512:130.34:320.26:575:57Third Quarter21Thu
22Fri9:201.411:270.71:390.45:100.26:575:56Third Quarter22Fri
23Sat10:151.33:270.55:390.16:585:56Third Quarter23Sat
24Sun12:150.911:04 AM1.15:020.66:040.16:585:56Third Quarter24Sun
25Mon12:511.111:47 AM1.06:210.66:260.16:595:56Waning Crescent25Mon
26Tue1:241.212:260.97:260.56:480.07:005:56Waning Crescent26Tue
27Wed1:541.41:020.88:210.57:100.07:005:56Waning Crescent27Wed
28Thu2:251.51:380.79:110.47:330.07:015:56Waning Crescent28Thu
29Fri2:561.62:130.69:580.37:58-0.17:025:56New Moon29Fri
30Sat3:281.72:490.510:430.38:25-0.17:025:56New Moon30Sat
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 4:10 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 29% 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 Waxing Crescent (29% 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