Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : 3:09 am (0.0 ft)
Next high tide : in 6h 34m at 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 - Jul 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:161.75:34-0.18:470.46:017:28Waning Crescent1Mon
2Tue12:180.62:001.86:13-0.19:440.36:027:28Waning Crescent2Tue
3Wed1:210.52:431.96:55-0.110:280.26:027:28Waning Crescent3Wed
4Thu2:170.43:241.97:39-0.111:060.26:027:28New Moon4Thu
5Fri3:080.44:031.98:22-0.111:400.16:037:28New Moon5Fri
6Sat3:550.54:411.89:06-0.16:037:28New Moon6Sat
7Sun4:400.55:171.812:120.19:48 AM0.06:037:28Waxing Crescent7Sun
8Mon5:270.55:521.712:430.110:30 AM0.16:047:28Waxing Crescent8Mon
9Tue6:190.66:241.51:140.211:13 AM0.26:047:28Waxing Crescent9Tue
10Wed7:180.76:541.41:450.212:000.46:057:27Waxing Crescent10Wed
11Thu8:270.87:231.22:170.212:590.56:057:27First Quarter11Thu
12Fri9:410.97:521.12:490.22:230.76:057:27First Quarter12Fri
13Sat10:481.08:240.93:210.14:140.76:067:27First Quarter13Sat
14Sun11:421.29:100.73:550.16:140.76:067:27First Quarter14Sun
15Mon12:271.44:310.17:510.66:077:27First Quarter15Mon
16Tue1:081.55:100.18:470.46:077:26Waxing Gibbous16Tue
17Wed1:481.75:530.09:260.36:077:26Waxing Gibbous17Wed
18Thu1:020.52:281.86:380.010:020.26:087:26Waxing Gibbous18Thu
19Fri1:560.53:071.97:24-0.110:360.26:087:26Full Moon19Fri
20Sat2:450.53:472.08:10-0.111:100.16:097:25Full Moon20Sat
21Sun3:340.54:262.08:57-0.111:450.16:097:25Full Moon21Sun
22Mon4:240.65:051.99:45-0.16:097:25Full Moon22Mon
23Tue5:190.75:431.812:190.110:36 AM0.06:107:24Waning Gibbous23Tue
24Wed6:190.86:211.612:520.111:33 AM0.26:107:24Waning Gibbous24Wed
25Thu7:261.06:591.41:270.012:410.46:117:23Waning Gibbous25Thu
26Fri8:401.17:391.12:020.02:110.66:117:23Third Quarter26Fri
27Sat9:561.38:250.92:390.04:100.76:117:23Third Quarter27Sat
28Sun11:071.59:320.73:200.06:340.66:127:22Third Quarter28Sun
29Mon12:071.64:060.08:170.56:127:22Waning Crescent29Mon
30Tue1:001.84:580.09:060.36:137:21Waning Crescent30Tue
31Wed12:290.51:461.85:530.09:400.36:137:21Waning Crescent31Wed
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 11:25 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