Nearby Harbors
43.7418’ N, 70.0145’ W

South Harpswell, ME

51°
H 52°
L 40°
SSW
11mph
High tide
5:24 pm
Photo Credits

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, October 18, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 11:53 pm (1.5 ft)
Next high tide : in 2h 44m at 5:24 pm (8.3 ft)
Sunset today : 5:51 pm
Sunrise tomorrow : 6:58 am
Moon phase : First Quarter (50% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

Featured Local Businesses

Yarmouth Boat Yard is an authorized Pursuit Boats dealer

Yarmouth Boat Yard
Freedom Boat Club at Yarmouth Boat Yard, Maine

Freedom Boat Club of Maine

Bamforth Marine
Oyster farm on the New Meadows River Maine, reflection of the trees and clouds in calm water

Merritt Island Oysters
Maine Yacht Center docks, Portland, Maine

Maine Yacht Center
Casco Bay Boat Transport

Casco Bay Boat Transport
Hamilton Marine - Portland

Hamilton Marine - Portland
Sunset, calm water and the islands on the Maine Island Trail

Maine Island Trail Association (MITA)

USCG Station South Portland, ME
Eros Oyster Robinhood Georgetown Maine

Eros Oyster

South Harpswell, ME Tides - Jul 1919

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:0410.72:449.78:25-0.98:410.25:018:25Waxing Crescent1Tue
2Wed2:5610.23:359.69:14-0.59:360.55:018:25Waxing Crescent2Wed
3Thu3:499.64:269.410:040.010:310.85:028:25First Quarter3Thu
4Fri4:439.05:179.210:540.511:281.15:028:25First Quarter4Fri
5Sat5:388.56:089.111:441.05:038:25First Quarter5Sat
6Sun6:348.16:599.012:251.212:351.35:048:24First Quarter6Sun
7Mon7:327.97:529.01:241.31:281.65:048:24Waxing Gibbous7Mon
8Tue8:297.88:439.12:211.22:221.75:058:24Waxing Gibbous8Tue
9Wed9:227.99:319.23:131.03:121.75:068:23Waxing Gibbous9Wed
10Thu10:108.010:159.44:000.83:571.55:078:23Waxing Gibbous10Thu
11Fri10:548.210:569.64:420.64:391.45:078:22Full Moon11Fri
12Sat11:368.411:379.85:220.35:191.25:088:22Full Moon12Sat
13Sun12:158.65:590.15:591.05:098:21Full Moon13Sun
14Mon12:159.912:538.86:36-0.16:390.85:108:21Full Moon14Mon
15Tue12:5410.01:309.17:13-0.37:200.65:118:20Waning Gibbous15Tue
16Wed1:3410.02:089.37:51-0.48:040.45:118:19Waning Gibbous16Wed
17Thu2:1510.02:489.58:31-0.48:500.35:128:19Waning Gibbous17Thu
18Fri3:019.83:339.89:15-0.39:410.25:138:18Waning Gibbous18Fri
19Sat3:519.64:229.910:02-0.210:360.25:148:17Third Quarter19Sat
20Sun4:469.35:1610.010:540.011:340.15:158:16Third Quarter20Sun
21Mon5:469.06:1310.111:490.25:168:15Third Quarter21Mon
22Tue6:508.87:1510.212:370.112:490.45:178:15Waning Crescent22Tue
23Wed7:588.88:1910.41:43-0.11:540.45:188:14Waning Crescent23Wed
24Thu9:038.99:2110.62:49-0.32:580.35:198:13Waning Crescent24Thu
25Fri10:049.110:1910.83:50-0.63:580.25:208:12New Moon25Fri
26Sat11:009.411:1410.94:46-0.94:540.05:218:11New Moon26Sat
27Sun11:539.65:38-1.05:48-0.15:228:10New Moon27Sun
28Mon12:0610.912:439.86:28-1.06:39-0.25:238:09New Moon28Mon
29Tue12:5610.71:309.87:14-0.97:28-0.15:248:08Waxing Crescent29Tue
30Wed1:4310.32:159.77:58-0.68:160.25:258:07Waxing Crescent30Wed
31Thu2:309.93:009.68:42-0.29:050.45:268:05Waxing Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

www.USHarbors.com

© 2026 US Harbors LLC All rights reserved

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.

Common Questions About South Harpswell, ME Tides

Collapse All
Is this week a spring tide or neap tide in South Harpswell, ME?

South Harpswell, ME 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 South Harpswell, 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 South Harpswell, ME?

Tide predictions for South Harpswell, 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 South Harpswell, ME?

Tide data for South Harpswell, ME is sourced from NOAA Station #8417647. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8417647.

What is the moon phase in South Harpswell, ME tonight?

Tonight the moon over South Harpswell, ME is First Quarter (50% illuminated). This places South Harpswell, ME 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

Coastal Stories See All

A car drives through a snowstorm in Broomfield, Colorado, in 2024. (Image credit: Bob Hyatt/NOAA)

El Nino looms large over U.S. Winter Outlook

By noaa.gov, noaa.gov. NOAA’s U.S. Winter Outlook, released today, shows how El Nino will likely influence the… More

Coastal NewsWeather & Tides

Archival photo of New England swordfishing vessel (left) courtesy of NOAA Fisheries; Background photo and photo offloading fish (right) courtesy of Hawaii Longline Association/Eric Kingma

Highly Migratory Species Management: Managing Shared Resources at Home and Around the World

By fisheries.noaa.gov, fisheries.noaa.gov. Highly migratory species—like Atlantic yellowfin tuna, Pacific albacore, and Atlantic swordfish—travel thousands of miles across… More

Coastal NewsOcean Science

A freediver from the Papahānaumokuākea Marine Debris Project works to carefully remove a ghost net from the reef at Kamokuokamohoali‘i (Maro Reef) in Hawaii. (Image credit: Andrew Sullivan-Hawkins/Papahānaumokuākea Marine Debris Project (Under permit # PMNM-2024-003))

Large-scale Marine Debris: 4 Ways to Clean up the Big Stuff

By fisheries.noaa.gov, fisheries.noaa.gov. Marine debris is a challenging problem. Across the country, NOAA and partners… More

Coastal NewsOcean Science

Map showing sea surface height anomalies using Darker reds to show sea levels higher than normal, while darker blues show heights below normal

Kelvin Waves, Explained

By fisheries.noaa.gov, fisheries.noaa.gov. You may be hearing a lot about Kelvin waves in the news.… More

Coastal NewsOcean ScienceWeather & Tides

Southern Resident killer whales swim just off Seattle’s shore. NOAA experts anticipate that the West Coast and the Pacific Islands will feel the effects of the 2026–2027 El Niño event most directly. Credit: NOAA Northwest Fisheries Science Center; taken under NOAA permit #781-1824

How Will El Niño Affect Your Local Fisheries?

By fisheries.noaa.gov, fisheries.noaa.gov. What does El Niño mean for U.S. fisheries and marine life? What… More

Coastal NewsOcean ScienceWeather & Tides

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 NewsWeather & Tides

Image Credits: Noaa fisheries.

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 LifeMarine 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 LifeOcean Science

Image Credits: Noaa Fisheries.

Celebrate National Seafood Month

By fisheries.noaa.gov, fisheries.noaa.gov. As we welcome autumn, we also celebrate National Seafood Month! Join us… More

Coastal LifeCoastal News

Your Privacy Choices