Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 1h 24m at 3:48 am (0.1 ft)
Next high tide : 11:53 am (1.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (64% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - May 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:100.84:041.78:59-0.311:010.06:087:07New Moon1Tue
2Wed3:550.64:461.79:34-0.311:530.06:077:07New Moon2Wed
3Thu4:400.65:301.710:11-0.26:077:08Waxing Crescent3Thu
4Fri5:290.56:151.612:460.110:49 AM-0.16:067:08Waxing Crescent4Fri
5Sat6:260.47:021.41:410.111:30 AM0.06:067:09Waxing Crescent5Sat
6Sun7:390.47:541.32:390.112:180.16:057:09Waxing Crescent6Sun
7Mon9:100.48:501.23:360.11:240.36:047:09First Quarter7Mon
8Tue10:390.69:481.14:280.12:550.46:047:10First Quarter8Tue
9Wed11:430.710:441.05:100.14:300.46:037:10First Quarter9Wed
10Thu12:290.95:450.05:510.46:037:11First Quarter10Thu
11Fri1:061.06:150.06:570.46:037:11Waxing Gibbous11Fri
12Sat12:180.81:391.26:430.07:520.36:027:12Waxing Gibbous12Sat
13Sun12:580.82:111.37:10-0.18:410.36:027:12Waxing Gibbous13Sun
14Mon1:360.72:441.47:38-0.19:270.26:017:13Waxing Gibbous14Mon
15Tue2:140.63:171.58:06-0.110:120.16:017:13Full Moon15Tue
16Wed2:510.63:521.68:35-0.210:560.16:007:13Full Moon16Wed
17Thu3:290.54:291.69:06-0.211:420.16:007:14Full Moon17Thu
18Fri4:100.55:081.79:40-0.26:007:14Full Moon18Fri
19Sat4:560.45:511.612:300.110:17 AM-0.15:597:15Waning Gibbous19Sat
20Sun5:510.46:371.61:200.111:00 AM0.05:597:15Waning Gibbous20Sun
21Mon7:020.47:271.52:110.011:52 AM0.15:597:16Waning Gibbous21Mon
22Tue8:300.58:211.43:030.01:030.35:587:16Third Quarter22Tue
23Wed10:000.79:201.23:510.02:420.45:587:17Third Quarter23Wed
24Thu11:130.910:201.14:36-0.14:290.55:587:17Third Quarter24Thu
25Fri12:101.15:16-0.16:040.45:587:17Third Quarter25Fri
26Sat12:591.45:55-0.27:240.45:587:18Waning Crescent26Sat
27Sun12:160.81:431.66:33-0.28:300.35:577:18Waning Crescent27Sun
28Mon1:100.72:261.77:10-0.29:270.25:577:19Waning Crescent28Mon
29Tue2:010.63:081.87:48-0.210:170.15:577:19New Moon29Tue
30Wed2:500.63:481.88:26-0.211:040.15:577:20New Moon30Wed
31Thu3:380.54:291.89:05-0.211:470.15:577:20New Moon31Thu
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 7:50 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 transitional phase. Tonight's moon is 64% 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 First Quarter (64% 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