Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide : 9:34 am (0.1 ft)
Next high tide : in 2h 22m at 4:11 am (0.7 ft)
Sunset today : 7:21 pm
Sunrise tomorrow : 6:12 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - May 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:180.83:161.68:17-0.310:070.16:097:06New Moon1Tue
2Wed3:010.74:001.78:50-0.311:030.06:087:07New Moon2Wed
3Thu3:460.64:451.89:26-0.36:077:07New Moon3Thu
4Fri4:340.55:341.812:010.010:05 AM-0.36:077:08Waxing Crescent4Fri
5Sat5:280.46:261.71:020.010:48 AM-0.26:067:08Waxing Crescent5Sat
6Sun6:360.47:221.62:060.011:38 AM-0.16:057:08Waxing Crescent6Sun
7Mon8:040.48:221.53:100.012:410.16:057:09First Quarter7Mon
8Tue9:440.59:241.34:100.02:070.26:047:09First Quarter8Tue
9Wed11:070.710:251.24:590.03:500.46:047:10First Quarter9Wed
10Thu12:080.95:38-0.15:250.46:037:10First Quarter10Thu
11Fri12:541.16:11-0.16:460.46:037:11Waxing Gibbous11Fri
12Sat12:090.91:341.36:40-0.17:520.36:027:11Waxing Gibbous12Sat
13Sun12:530.82:101.47:06-0.18:480.36:027:12Waxing Gibbous13Sun
14Mon1:340.72:451.57:32-0.19:360.26:017:12Waxing Gibbous14Mon
15Tue2:120.63:181.67:58-0.110:190.26:017:12Full Moon15Tue
16Wed2:480.53:511.68:26-0.111:000.26:017:13Full Moon16Wed
17Thu3:240.54:251.68:56-0.111:400.16:007:13Full Moon17Thu
18Fri4:000.45:001.69:26-0.16:007:14Full Moon18Fri
19Sat4:380.45:361.512:210.19:58 AM-0.16:007:14Waning Gibbous19Sat
20Sun5:190.46:141.51:050.110:31 AM0.05:597:15Waning Gibbous20Sun
21Mon6:120.46:551.41:520.111:06 AM0.15:597:15Waning Gibbous21Mon
22Tue7:250.47:381.32:400.111:49 AM0.25:597:16Waning Gibbous22Tue
23Wed9:000.48:261.23:270.112:520.35:587:16Third Quarter23Wed
24Thu10:260.69:171.14:080.12:330.55:587:16Third Quarter24Thu
25Fri11:260.810:111.04:440.04:240.55:587:17Third Quarter25Fri
26Sat12:121.05:160.05:570.55:587:17Third Quarter26Sat
27Sun12:541.35:49-0.17:150.45:577:18Waning Crescent27Sun
28Mon12:010.81:351.56:22-0.28:220.35:577:18Waning Crescent28Mon
29Tue12:540.72:181.76:58-0.29:210.25:577:19Waning Crescent29Tue
30Wed1:470.63:011.97:36-0.310:160.15:577:19New Moon30Wed
31Thu2:400.53:472.08:18-0.311:080.05:577:19New 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 6:52 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 spring phase. Tonight's moon is 98% 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 Full Moon (98% 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