Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.

Next low tide : in 4h 09m at 5:59 am (0.0 ft)
Next high tide : 1:48 pm (1.6 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Jun 2037

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Mon	6:00	0.4	6:37	1.5	1:22	0.1	10:57 AM	0.0	5:57	7:20		1	Mon
2	Tue	7:06	0.4	7:22	1.4	2:13	0.1	11:38 AM	0.2	5:57	7:21		2	Tue
3	Wed	8:30	0.4	8:11	1.3	3:04	0.1	12:29	0.3	5:57	7:21		3	Wed
4	Thu	10:02	0.5	9:03	1.2	3:53	0.1	1:46	0.4	5:57	7:21		4	Thu
5	Fri	11:16	0.7	9:57	1.1	4:36	0.1	3:27	0.5	5:57	7:22		5	Fri
6	Sat			12:06	0.8	5:14	0.0	5:01	0.5	5:57	7:22		6	Sat
7	Sun			12:44	1.0	5:47	0.0	6:19	0.5	5:57	7:22		7	Sun
8	Mon			1:18	1.2	6:17	0.0	7:24	0.4	5:57	7:23		8	Mon
9	Tue	12:22	0.8	1:51	1.3	6:46	-0.1	8:19	0.4	5:57	7:23		9	Tue
10	Wed	1:06	0.8	2:24	1.5	7:15	-0.1	9:10	0.3	5:57	7:24		10	Wed
11	Thu	1:48	0.7	2:59	1.6	7:45	-0.1	9:58	0.2	5:57	7:24		11	Thu
12	Fri	2:30	0.6	3:35	1.7	8:16	-0.2	10:45	0.2	5:57	7:24		12	Fri
13	Sat	3:14	0.6	4:14	1.8	8:50	-0.2	11:33	0.1	5:57	7:25		13	Sat
14	Sun	4:00	0.5	4:55	1.8	9:28	-0.2			5:57	7:25		14	Sun
15	Mon	4:50	0.5	5:39	1.8	12:21	0.1	10:08 AM	-0.1	5:57	7:25		15	Mon
16	Tue	5:48	0.5	6:25	1.7	1:11	0.1	10:53 AM	0.0	5:57	7:25		16	Tue
17	Wed	6:59	0.5	7:14	1.6	2:02	0.0	11:46 AM	0.1	5:58	7:26		17	Wed
18	Thu	8:23	0.6	8:07	1.5	2:52	0.0	12:54	0.3	5:58	7:26		18	Thu
19	Fri	9:49	0.7	9:03	1.3	3:40	0.0	2:26	0.4	5:58	7:26		19	Fri
20	Sat	11:04	0.9	10:01	1.2	4:25	0.0	4:10	0.5	5:58	7:26		20	Sat
21	Sun			12:03	1.2	5:07	-0.1	5:48	0.5	5:58	7:27		21	Sun
22	Mon			12:53	1.4	5:45	-0.1	7:13	0.5	5:59	7:27		22	Mon
23	Tue			1:37	1.6	6:22	-0.1	8:22	0.4	5:59	7:27		23	Tue
24	Wed	12:53	0.8	2:19	1.7	6:58	-0.1	9:20	0.3	5:59	7:27		24	Wed
25	Thu	1:44	0.7	2:58	1.8	7:34	-0.2	10:09	0.2	5:59	7:27		25	Thu
26	Fri	2:33	0.6	3:37	1.8	8:10	-0.1	10:52	0.2	6:00	7:27		26	Fri
27	Sat	3:20	0.6	4:15	1.8	8:47	-0.1	11:32	0.2	6:00	7:28		27	Sat
28	Sun	4:05	0.5	4:52	1.8	9:24	-0.1			6:00	7:28		28	Sun
29	Mon	4:50	0.5	5:29	1.7	12:10	0.1	10:02 AM	0.0	6:01	7:28		29	Mon
30	Tue	5:38	0.5	6:05	1.6	12:48	0.1	10:41 AM	0.1	6:01	7:28		30	Tue
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (1610367)

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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 9:53 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 86% 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 Waxing Gibbous (86% 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

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