Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 9:55 pm (0.2 ft)
Next high tide : in 6h 59m at 2:36 pm (2.0 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:031.75:010.08:460.36:137:20Waxing Gibbous1Fri
2Sat12:260.51:501.96:02-0.19:200.26:137:20Waxing Gibbous2Sat
3Sun1:300.52:342.07:00-0.19:530.26:147:19Waxing Gibbous3Sun
4Mon2:250.63:172.07:55-0.110:260.16:147:19Full Moon4Mon
5Tue3:170.73:572.08:49-0.110:580.16:157:18Full Moon5Tue
6Wed4:080.94:361.99:420.011:300.06:157:17Full Moon6Wed
7Thu5:011.05:141.710:360.16:157:17Waning Gibbous7Thu
8Fri5:561.15:511.512:020.011:35 AM0.36:167:16Waning Gibbous8Fri
9Sat6:551.26:261.312:340.012:420.56:167:15Waning Gibbous9Sat
10Sun8:001.37:021.01:070.12:060.66:167:15Third Quarter10Sun
11Mon9:121.47:400.81:430.14:030.76:177:14Third Quarter11Mon
12Tue10:261.52:240.16:177:13Third Quarter12Tue
13Wed11:341.510:570.53:170.28:150.56:187:13Third Quarter13Wed
14Thu12:301.64:210.28:450.46:187:12Waning Crescent14Thu
15Fri12:200.51:171.65:260.29:080.36:187:11Waning Crescent15Fri
16Sat1:140.61:571.76:230.29:260.36:197:11Waning Crescent16Sat
17Sun1:550.62:311.77:120.19:440.36:197:10Waning Crescent17Sun
18Mon2:300.73:031.77:540.110:030.36:197:09New Moon18Mon
19Tue3:040.83:311.78:330.110:230.26:207:08New Moon19Tue
20Wed3:380.93:571.69:110.110:430.26:207:07New Moon20Wed
21Thu4:120.94:221.59:490.211:040.26:207:07New Moon21Thu
22Fri4:481.04:451.410:290.311:250.26:217:06Waxing Crescent22Fri
23Sat5:261.15:081.311:130.411:460.26:217:05Waxing Crescent23Sat
24Sun6:091.25:311.112:050.56:217:04Waxing Crescent24Sun
25Mon6:591.25:541.012:080.21:140.66:217:03Waxing Crescent25Mon
26Tue8:031.36:180.812:340.22:560.76:227:02First Quarter26Tue
27Wed9:211.41:100.26:227:01First Quarter27Wed
28Thu10:391.52:040.26:227:01First Quarter28Thu
29Fri11:441.611:260.53:210.27:430.46:237:00First Quarter29Fri
30Sat12:381.84:450.18:110.36:236:59Waxing Gibbous30Sat
31Sun12:370.61:251.95:580.18:390.26:236:58Waxing Gibbous31Sun
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 6:15 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 spring phase. Tonight's moon is 5% 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 maximum.

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 Crescent (5% illuminated). This places Nonopapa, Niihau Island, HI in a spring tide cycle, so tidal ranges are near their weekly maximum 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