Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 3:48 am (0.1 ft)
Next high tide (tomorrow) : in 44m at 8:36 pm (0.7 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - May 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:350.74:301.59:27-0.111:280.16:087:07New Moon1Tue
2Wed4:060.65:071.59:50-0.16:087:07New Moon2Wed
3Thu4:390.55:491.512:230.110:16 AM-0.16:077:07Waxing Crescent3Thu
4Fri5:180.46:381.51:260.210:47 AM-0.16:067:08Waxing Crescent4Fri
5Sat6:130.37:371.52:400.111:25 AM0.06:067:08Waxing Crescent5Sat
6Sun7:560.28:431.43:580.112:180.16:057:09First Quarter6Sun
7Mon10:040.39:511.45:000.01:480.26:057:09First Quarter7Mon
8Tue11:270.510:531.45:440.03:440.36:047:10First Quarter8Tue
9Wed12:220.76:18-0.15:210.36:047:10First Quarter9Wed
10Thu1:071.06:49-0.16:400.36:037:10Waxing Gibbous10Thu
11Fri12:371.21:501.27:18-0.27:480.26:037:11Waxing Gibbous11Fri
12Sat1:221.12:311.47:46-0.28:510.26:027:11Waxing Gibbous12Sat
13Sun2:050.93:121.68:15-0.39:500.16:027:12Full Moon13Sun
14Mon2:480.83:521.78:44-0.310:470.16:017:12Full Moon14Mon
15Tue3:300.64:331.89:13-0.311:430.16:017:13Full Moon15Tue
16Wed4:130.55:151.89:44-0.26:017:13Full Moon16Wed
17Thu4:580.45:591.712:400.110:16 AM-0.16:007:13Waning Gibbous17Thu
18Fri5:500.36:461.61:380.110:49 AM0.06:007:14Waning Gibbous18Fri
19Sat7:000.37:371.42:400.111:26 AM0.15:597:14Waning Gibbous19Sat
20Sun8:400.38:331.33:420.112:150.25:597:15Third Quarter20Sun
21Mon10:290.49:311.24:360.11:380.45:597:15Third Quarter21Mon
22Tue11:400.610:271.15:160.13:300.45:597:16Third Quarter22Tue
23Wed12:240.75:480.05:040.55:587:16Third Quarter23Wed
24Thu12:580.96:150.06:190.45:587:17Waning Crescent24Thu
25Fri1:301.16:400.07:220.45:587:17Waning Crescent25Fri
26Sat12:390.92:001.27:04-0.18:180.45:587:17Waning Crescent26Sat
27Sun1:160.82:311.47:27-0.19:090.35:577:18Waning Crescent27Sun
28Mon1:520.73:031.57:52-0.19:590.25:577:18New Moon28Mon
29Tue2:300.63:371.68:18-0.210:480.25:577:19New Moon29Tue
30Wed3:080.54:141.78:46-0.211:380.15:577:19New Moon30Wed
31Thu3:490.44:541.89:18-0.25:577:20New 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 12:12 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 neap phase. Tonight's moon is 55% 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 minimum.

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 (55% illuminated). This places Nonopapa, Niihau Island, HI in a neap tide cycle, so tidal ranges are near their weekly minimum 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