Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Petersburg, AK.

Next low tide : in 21m at 7:39 pm (3.7 ft)
Next high tide (tomorrow) : 1:31 am (16.1 ft)
Sunset today : 9:11 pm
Sunrise tomorrow : 4:45 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 1958

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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	Thu	10:25	16.0	10:33	18.3	4:16	-1.2	4:27	-0.1	3:04	6:33		1	Thu
2	Fri	11:16	16.8	11:17	19.2	5:05	-2.6	5:14	-0.3	3:01	6:35		2	Fri
3	Sat			12:05	17.1	5:51	-3.6	5:59	-0.2	2:59	6:37		3	Sat
4	Sun	12:01	19.5	12:53	17.1	6:36	-3.9	6:44	0.3	2:57	6:39		4	Sun
5	Mon	12:45	19.2	1:40	16.6	7:22	-3.7	7:29	1.0	2:55	6:41		5	Mon
6	Tue	1:29	18.4	2:28	15.8	8:07	-2.9	8:17	1.9	2:52	6:44		6	Tue
7	Wed	2:15	17.2	3:18	14.8	8:55	-1.7	9:07	2.9	2:50	6:46		7	Wed
8	Thu	3:03	15.8	4:12	13.9	9:46	-0.4	10:05	3.8	2:48	6:48		8	Thu
9	Fri	3:57	14.2	5:13	13.1	10:42	0.9	11:13	4.4	2:46	6:50		9	Fri
10	Sat	5:00	12.8	6:19	12.8	11:44	2.0			2:44	6:52		10	Sat
11	Sun	6:15	11.9	7:23	13.0	12:30	4.5	12:51	2.7	2:42	6:54		11	Sun
12	Mon	7:32	11.7	8:18	13.4	1:44	3.9	1:54	3.0	2:40	6:56		12	Mon
13	Tue	8:37	12.0	9:03	14.1	2:44	3.0	2:47	3.0	2:38	6:58		13	Tue
14	Wed	9:31	12.5	9:42	14.7	3:33	2.0	3:33	2.9	2:36	7:00		14	Wed
15	Thu	10:16	13.1	10:17	15.4	4:14	0.9	4:12	2.7	2:34	7:02		15	Thu
16	Fri	10:56	13.7	10:51	15.9	4:51	0.0	4:48	2.6	2:32	7:04		16	Fri
17	Sat	11:34	14.2	11:24	16.3	5:26	-0.7	5:23	2.5	2:30	7:06		17	Sat
18	Sun			12:10	14.5	6:00	-1.3	5:57	2.5	2:28	7:07		18	Sun
19	Mon			12:47	14.7	6:34	-1.6	6:31	2.6	2:26	7:09		19	Mon
20	Tue	12:31	16.6	1:24	14.7	7:09	-1.7	7:07	2.8	2:24	7:11		20	Tue
21	Wed	1:06	16.5	2:03	14.5	7:46	-1.6	7:45	3.0	2:23	7:13		21	Wed
22	Thu	1:44	16.1	2:45	14.2	8:25	-1.3	8:28	3.3	2:21	7:15		22	Thu
23	Fri	2:26	15.5	3:31	14.0	9:09	-0.8	9:18	3.6	2:19	7:17		23	Fri
24	Sat	3:15	14.6	4:23	13.8	9:58	-0.1	10:19	3.8	2:18	7:18		24	Sat
25	Sun	4:15	13.7	5:21	13.9	10:54	0.6	11:31	3.6	2:16	7:20		25	Sun
26	Mon	5:27	13.0	6:24	14.3	11:57	1.2			2:15	7:22		26	Mon
27	Tue	6:47	12.7	7:26	15.1	12:49	2.9	1:03	1.5	2:13	7:23		27	Tue
28	Wed	8:04	13.1	8:23	16.2	2:01	1.6	2:08	1.6	2:12	7:25		28	Wed
29	Thu	9:11	13.8	9:17	17.2	3:04	0.1	3:07	1.5	2:11	7:27		29	Thu
30	Fri	10:11	14.7	10:07	18.1	3:59	-1.4	4:02	1.3	2:09	7:28		30	Fri
31	Sat	11:05	15.5	10:55	18.6	4:50	-2.6	4:52	1.2	2:08	7:30		31	Sat
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9451439)

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What time does the tide turn (slack tide) in Petersburg, AK today?

Slack tide in Petersburg, AK is approximately 10:35 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 Petersburg, AK?

Petersburg, AK is currently in a spring phase. Tonight's moon is 99% 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 Petersburg, 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 Petersburg, AK?

Tide predictions for Petersburg, 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 Petersburg, AK?

Tide data for Petersburg, AK is sourced from NOAA Station #9451439. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451439.

What is the moon phase in Petersburg, AK tonight?

Tonight the moon over Petersburg, AK is Full Moon (99% illuminated). This places Petersburg, AK 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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