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 (tomorrow) : 4:33 am (0.1 ft)
Next high tide : in 3h 15m at 11:53 am (1.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (64% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:221.18:370.93:050.24:230.76:137:21Third Quarter1Mon
2Tue11:241.39:520.73:470.16:140.66:137:20Third Quarter2Tue
3Wed12:171.54:330.17:340.56:147:19Waning Crescent3Wed
4Thu1:061.75:240.08:290.46:147:19Waning Crescent4Thu
5Fri12:330.61:521.96:16-0.19:140.36:147:18Waning Crescent5Fri
6Sat1:350.62:372.07:09-0.19:540.26:157:18Waning Crescent6Sat
7Sun2:290.73:212.08:01-0.110:330.16:157:17New Moon7Sun
8Mon3:210.74:042.08:53-0.111:100.16:167:16New Moon8Mon
9Tue4:130.84:462.09:45-0.111:470.16:167:16New Moon9Tue
10Wed5:070.95:271.810:380.06:167:15Waxing Crescent10Wed
11Thu6:031.06:071.612:240.111:34 AM0.26:177:15Waxing Crescent11Thu
12Fri7:041.16:481.41:010.112:380.46:177:14Waxing Crescent12Fri
13Sat8:131.27:301.11:380.11:560.66:177:13First Quarter13Sat
14Sun9:261.38:200.92:180.13:370.76:187:12First Quarter14Sun
15Mon10:391.49:310.73:010.25:430.66:187:12First Quarter15Mon
16Tue11:421.511:010.63:510.27:290.56:187:11First Quarter16Tue
17Wed12:351.64:450.28:220.46:197:10Waxing Gibbous17Wed
18Thu12:170.61:201.65:400.28:550.46:197:09Waxing Gibbous18Thu
19Fri1:120.61:591.76:300.29:210.36:197:09Waxing Gibbous19Fri
20Sat1:550.62:351.77:160.19:440.36:207:08Waxing Gibbous20Sat
21Sun2:310.73:081.77:580.110:070.36:207:07Full Moon21Sun
22Mon3:050.83:391.78:360.110:310.26:207:06Full Moon22Mon
23Tue3:390.84:081.69:130.110:570.26:217:05Full Moon23Tue
24Wed4:130.94:361.69:500.211:220.26:217:05Full Moon24Wed
25Thu4:490.95:021.510:280.211:480.26:217:04Waning Gibbous25Thu
26Fri5:291.05:291.411:090.36:227:03Waning Gibbous26Fri
27Sat6:131.15:561.212:130.211:58 AM0.56:227:02Waning Gibbous27Sat
28Sun7:061.16:251.112:400.21:030.66:227:01Waning Gibbous28Sun
29Mon8:121.27:000.91:110.22:360.76:237:00Third Quarter29Mon
30Tue9:281.37:550.71:500.24:380.66:236:59Third Quarter30Tue
31Wed10:421.49:500.62:420.26:250.56:236:58Third Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1610367)

Common Questions About Nonopapa, Niihau Island, HI Tides

Show All
What time does the tide turn (slack tide) in Nonopapa, Niihau Island, HI today?

Slack tide in Nonopapa, Niihau Island, HI is approximately 8:13 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 64% 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 First Quarter (64% 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