Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 11:41 am (0.3 ft)
Next high tide : in 2h 54m at 7:00 am (0.6 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 - Aug 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:091.85:180.08:490.36:137:20Waxing Gibbous1Thu
2Fri12:480.51:551.96:180.09:220.26:147:20Waxing Gibbous2Fri
3Sat1:460.62:381.97:130.09:530.26:147:19Waxing Gibbous3Sat
4Sun2:360.73:171.98:040.010:210.26:147:19Full Moon4Sun
5Mon3:210.83:531.88:520.010:480.16:157:18Full Moon5Mon
6Tue4:050.94:271.79:370.111:150.16:157:18Full Moon6Tue
7Wed4:481.04:581.610:210.211:410.16:167:17Waning Gibbous7Wed
8Thu5:311.05:261.411:070.36:167:16Waning Gibbous8Thu
9Fri6:171.15:531.212:070.111:56 AM0.46:167:16Waning Gibbous9Fri
10Sat7:081.16:161.112:350.212:540.66:177:15Waning Gibbous10Sat
11Sun8:071.26:370.91:040.22:110.76:177:14Third Quarter11Sun
12Mon9:171.26:510.81:380.24:020.76:177:14Third Quarter12Mon
13Tue10:311.32:220.26:187:13Third Quarter13Tue
14Wed11:351.410:360.53:190.28:060.56:187:12Third Quarter14Wed
15Thu12:261.54:240.28:170.46:187:11Waning Crescent15Thu
16Fri12:020.51:081.65:250.28:370.46:197:11Waning Crescent16Fri
17Sat12:560.61:461.76:190.19:000.36:197:10Waning Crescent17Sat
18Sun1:390.72:211.77:070.19:250.26:197:09Waning Crescent18Sun
19Mon2:200.82:541.87:530.09:500.26:207:08New Moon19Mon
20Tue3:010.93:281.88:380.010:160.16:207:07New Moon20Tue
21Wed3:431.04:011.79:250.110:430.16:207:07New Moon21Wed
22Thu4:281.14:341.610:160.211:110.16:217:06New Moon22Thu
23Fri5:161.35:081.411:110.311:400.16:217:05Waxing Crescent23Fri
24Sat6:091.45:421.212:140.46:217:04Waxing Crescent24Sat
25Sun7:091.46:191.012:120.11:330.56:227:03Waxing Crescent25Sun
26Mon8:181.57:030.812:480.13:170.66:227:02First Quarter26Mon
27Tue9:361.68:240.61:350.15:270.56:227:02First Quarter27Tue
28Wed10:511.610:310.52:380.27:010.46:237:01First Quarter28Wed
29Thu11:551.73:570.27:440.36:237:00Waxing Gibbous29Thu
30Fri12:000.612:491.75:150.28:160.36:236:59Waxing Gibbous30Fri
31Sat1:000.71:341.86:210.18:430.26:236:58Waxing Gibbous31Sat
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 9:20 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 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