Tides Today & Tomorrow in Chiachi Island (East Side), AK

TIDE TIMES for Friday, September 18, 2026
The tide is currently rising in Chiachi Island (East Side), AK.

Next low tide (tomorrow) : 3:13 am (2.7 ft)
Next high tide : in 1h 55m at 7:25 pm (6.7 ft)
Sunset today : 8:45 pm
Sunrise tomorrow : 8:15 am
Moon phase : First Quarter (50% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1882

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May 1882 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sat	12:58	6.7	1:06	6.8	7:16	1.4	7:25	0.9	6:06	7:15		1	Sat
2	Sun	1:23	7.2	1:42	6.9	7:48	0.6	7:52	1.0	6:03	7:17		2	Sun
3	Mon	1:49	7.5	2:17	6.9	8:19	0.0	8:20	1.1	6:00	7:19		3	Mon
4	Tue	2:16	7.8	2:51	6.9	8:51	-0.4	8:48	1.3	5:58	7:21		4	Tue
5	Wed	2:44	8.1	3:26	6.7	9:24	-0.7	9:19	1.7	5:55	7:23		5	Wed
6	Thu	3:13	8.2	4:03	6.4	9:59	-0.7	9:51	2.2	5:53	7:25		6	Thu
7	Fri	3:46	8.1	4:43	6.1	10:38	-0.5	10:26	2.7	5:50	7:27		7	Fri
8	Sat	4:22	8.0	5:30	5.7	11:22	-0.2	11:07	3.2	5:47	7:29		8	Sat
9	Sun	5:06	7.7	6:27	5.3			12:14	0.2	5:45	7:31		9	Sun
10	Mon	5:59	7.3	7:39	5.1			1:14	0.6	5:42	7:33		10	Mon
11	Tue	7:07	6.8	9:01	5.3	1:07	4.1	2:26	0.9	5:40	7:35		11	Tue
12	Wed	8:32	6.5	10:10	5.9	2:35	3.9	3:41	0.8	5:37	7:37		12	Wed
13	Thu	9:58	6.6	11:04	6.6	4:05	3.1	4:46	0.5	5:35	7:39		13	Thu
14	Fri	11:12	6.8	11:51	7.4	5:18	1.7	5:41	0.3	5:32	7:41		14	Fri
15	Sat			12:14	7.1	6:17	0.3	6:29	0.1	5:30	7:43		15	Sat
16	Sun	12:34	8.1	1:09	7.4	7:09	-1.0	7:14	0.2	5:27	7:45		16	Sun
17	Mon	1:15	8.7	1:59	7.4	7:56	-1.9	7:56	0.4	5:25	7:47		17	Mon
18	Tue	1:55	9.1	2:47	7.4	8:40	-2.4	8:37	0.8	5:22	7:49		18	Tue
19	Wed	2:34	9.2	3:33	7.1	9:23	-2.5	9:17	1.4	5:20	7:51		19	Wed
20	Thu	3:14	9.0	4:19	6.7	10:06	-2.1	9:58	2.0	5:17	7:53		20	Thu
21	Fri	3:54	8.6	5:06	6.3	10:50	-1.4	10:40	2.8	5:15	7:55		21	Fri
22	Sat	4:36	8.0	5:57	5.8	11:36	-0.5	11:26	3.5	5:12	7:57		22	Sat
23	Sun	5:21	7.3	6:54	5.4			12:26	0.4	5:10	7:59		23	Sun
24	Mon	6:13	6.6	8:02	5.2	12:20	4.1	1:23	1.2	5:08	8:01		24	Mon
25	Tue	7:16	5.9	9:15	5.3	1:29	4.4	2:31	1.8	5:05	8:03		25	Tue
26	Wed	8:36	5.5	10:14	5.5	3:04	4.3	3:41	2.1	5:03	8:05		26	Wed
27	Thu	9:58	5.4	10:57	5.9	4:29	3.6	4:37	2.1	5:01	8:07		27	Thu
28	Fri	11:04	5.5	11:33	6.4	5:26	2.7	5:22	2.1	4:58	8:09		28	Fri
29	Sat	11:57	5.7			6:11	1.7	6:01	2.0	4:56	8:11		29	Sat
30	Sun	12:05	6.9	12:42	6.0	6:48	0.8	6:36	2.0	4:54	8:13		30	Sun
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9459085)

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Is this week a spring tide or neap tide in Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a neap phase. Tonight's moon is 50% 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 minimum.

What datum are Chiachi Island (East Side), AK 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 Chiachi Island (East Side), AK?

Tide predictions for Chiachi Island (East Side), AK 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 Chiachi Island (East Side), AK?

Tide data for Chiachi Island (East Side), AK is sourced from NOAA Station #9459085. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9459085.

What is the moon phase in Chiachi Island (East Side), AK tonight?

Tonight the moon over Chiachi Island (East Side), AK is First Quarter (50% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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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