Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Friday, October 9, 2026
The tide is currently falling in Southwest Harbor, ME.

Next low tide : in 4h 36m at 4:10 pm (-0.3 ft)
Next high tide : 10:46 pm (11.2 ft)
Sunset today : 5:59 pm
Sunrise tomorrow : 6:40 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Featured Local Businesses

Hamilton Marine - Southwest Harbor

A red hull lobster yacht cruising in calm water

John Williams Boat Company

Clark Point Gallery

Bowden Marine

Billings Diesel & Marine

Southwest Harbor, ME Tides - Nov 1855

< Oct 1855

Print this Tide Chart

Dec 1855 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Thu	3:53	9.0	4:05	9.6	9:29	2.1	10:10	1.3	6:13	4:27		1	Thu
2	Fri	4:52	8.8	5:06	9.4	10:30	2.2	11:07	1.4	6:15	4:26		2	Fri
3	Sat	5:50	8.9	6:05	9.4	11:29	2.1			6:16	4:25		3	Sat
4	Sun	6:43	9.1	6:59	9.5	12:01	1.3	12:24	1.8	6:18	4:23		4	Sun
5	Mon	7:30	9.5	7:48	9.6	12:50	1.2	1:14	1.4	6:19	4:22		5	Mon
6	Tue	8:12	9.9	8:31	9.8	1:34	1.1	1:58	1.0	6:20	4:21		6	Tue
7	Wed	8:50	10.3	9:12	10.0	2:14	0.9	2:39	0.6	6:22	4:20		7	Wed
8	Thu	9:25	10.6	9:50	10.1	2:50	0.8	3:17	0.3	6:23	4:18		8	Thu
9	Fri	10:00	10.9	10:28	10.1	3:26	0.8	3:54	0.0	6:24	4:17		9	Fri
10	Sat	10:35	11.1	11:06	10.1	4:01	0.8	4:31	-0.1	6:26	4:16		10	Sat
11	Sun	11:12	11.2	11:46	10.0	4:37	0.9	5:10	-0.2	6:27	4:15		11	Sun
12	Mon	11:52	11.3			5:16	1.0	5:52	-0.2	6:28	4:14		12	Mon
13	Tue	12:29	9.9	12:36	11.2	6:00	1.1	6:39	-0.1	6:30	4:13		13	Tue
14	Wed	1:16	9.7	1:26	11.0	6:48	1.3	7:31	0.1	6:31	4:12		14	Wed
15	Thu	2:10	9.6	2:22	10.8	7:43	1.4	8:28	0.2	6:32	4:11		15	Thu
16	Fri	3:09	9.5	3:24	10.5	8:45	1.5	9:30	0.3	6:34	4:10		16	Fri
17	Sat	4:13	9.6	4:32	10.4	9:53	1.4	10:34	0.3	6:35	4:09		17	Sat
18	Sun	5:18	9.9	5:40	10.4	11:03	1.0	11:36	0.2	6:36	4:08		18	Sun
19	Mon	6:20	10.4	6:46	10.6			12:09	0.5	6:38	4:07		19	Mon
20	Tue	7:18	11.0	7:46	10.8	12:36	0.0	1:10	-0.1	6:39	4:06		20	Tue
21	Wed	8:11	11.5	8:42	10.9	1:31	-0.2	2:06	-0.7	6:40	4:05		21	Wed
22	Thu	9:01	12.0	9:35	11.0	2:23	-0.3	2:58	-1.1	6:41	4:05		22	Thu
23	Fri	9:49	12.1	10:24	11.0	3:12	-0.2	3:48	-1.2	6:43	4:04		23	Fri
24	Sat	10:35	12.1	11:12	10.8	3:59	0.0	4:35	-1.2	6:44	4:03		24	Sat
25	Sun	11:20	11.9	11:59	10.4	4:46	0.3	5:22	-0.9	6:45	4:03		25	Sun
26	Mon			12:05	11.5	5:32	0.7	6:08	-0.5	6:46	4:02		26	Mon
27	Tue	12:45	10.1	12:52	11.0	6:18	1.1	6:55	0.0	6:48	4:01		27	Tue
28	Wed	1:33	9.7	1:39	10.5	7:06	1.5	7:43	0.5	6:49	4:01		28	Wed
29	Thu	2:22	9.3	2:30	10.0	7:56	1.8	8:33	0.9	6:50	4:00		29	Thu
30	Fri	3:13	9.0	3:23	9.6	8:49	2.0	9:24	1.2	6:51	4:00		30	Fri
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8413564)

www.USHarbors.com

The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
Any commercial use, modification, redistribution, or repackaging without written permission is strictly prohibited.

Is this week a spring tide or neap tide in Southwest Harbor, ME?

Southwest Harbor, ME is currently in a spring phase. Tonight's moon is 1% 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 Southwest Harbor, ME 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 Southwest Harbor, ME?

Tide predictions for Southwest Harbor, ME 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 Southwest Harbor, ME?

Tide data for Southwest Harbor, ME is sourced from NOAA Station #8413564. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8413564.

What is the moon phase in Southwest Harbor, ME tonight?

Tonight the moon over Southwest Harbor, ME is New Moon (1% illuminated). This places Southwest Harbor, ME 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

Quietly Sophisticated: The Hood 42 LM

By US Harbors At first glance, the Hood 42 LM might be confused for a boat that worked the Maine coast fifty years ago, but upon further inspection, the fifteen coats of Epifanes varnish over mahogany and custom-cast bronze hardware reveal that this boat was built for cruising. Beyond the… Learn More

Coastal Stories See All

NOAA's flood inundation map (left) depicting the forecast for flooding extent in New London, Wisconsin, and a photo of flooded streets in New London (right), dated April 17, 2026. (Image credit: NOAA NWS)

NOAA’s flood mapping tool now covers nearly 100% of U.S.

By fisheries.noaa.gov, fisheries.noaa.gov. NOAA’s National Weather Service announced today that Flood Inundation Mapping (FIM), a… More

Coastal News Extreme Weather Weather & Tides

Meet Hawaii Fish Company, Tilapia Farmers in Hawaiʻi

By fisheries.noaa.gov, fisheries.noaa.gov. For husband and wife duo Ron and and Estralita Weidenbach, fish farming… More

Coastal Life Marine Economy

NOAA Fisheries and Sea Quester Farms partnered up to evaluate if kelp farms provide habitat for marine life in Alaska. Pictured here is one of Sea Quester’s farms in southeast Alaska near Juneau. Credit: Hatch Blue, Alaska Mariculture Cluster

Kelp Farms and Marine Life Co-Exist in Southeast Alaska

By fisheries.noaa.gov, fisheries.noaa.gov. Marine aquaculture, or mariculture, provides economic opportunities for coastal communities in Alaska… More

Coastal Life Environment Food Ocean Science