Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

67°
H -°
L 60°
S
10mph
Low tide
9:49 pm
Photo Credits

Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 4h 41m at 9:49 pm (0.7 ft)
Next high tide (tomorrow) : 4:04 am (8.3 ft)
Sunset today : 6:49 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waxing Crescent (30% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Featured Local Businesses

Maine Yacht Center docks, Portland, Maine

Maine Yacht Center
Sunset, calm water and the islands on the Maine Island Trail

Maine Island Trail Association (MITA)

USCG Station South Portland, ME
Casco Bay Boat Transport

Casco Bay Boat Transport
Hamilton Marine - Portland

Hamilton Marine - Portland
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

Portland, ME Tides - Apr 1871

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:278.88:098.31:091.81:510.85:266:11Waxing Gibbous1Sat
2Sun8:209.38:548.92:041.22:380.35:246:12Waxing Gibbous2Sun
3Mon9:079.89:369.62:520.63:22-0.25:236:13Waxing Gibbous3Mon
4Tue9:5310.210:1810.23:39-0.14:04-0.65:216:14Full Moon4Tue
5Wed10:3910.511:0010.84:25-0.84:47-0.95:196:15Full Moon5Wed
6Thu11:2610.711:4411.15:11-1.35:31-1.05:176:17Full Moon6Thu
7Fri12:1410.65:59-1.66:16-0.95:166:18Waning Gibbous7Fri
8Sat12:2911.31:0310.46:48-1.67:04-0.75:146:19Waning Gibbous8Sat
9Sun1:1711.21:5610.07:39-1.47:55-0.25:126:20Waning Gibbous9Sun
10Mon2:0910.92:559.58:36-1.08:520.35:106:21Third Quarter10Mon
11Tue3:0810.44:009.19:37-0.69:550.75:096:22Third Quarter11Tue
12Wed4:1410.05:088.810:44-0.111:031.15:076:24Third Quarter12Wed
13Thu5:239.66:178.711:540.25:056:25Third Quarter13Thu
14Fri6:359.57:238.912:161.21:030.25:036:26Waning Crescent14Fri
15Sat7:419.58:219.21:261.02:040.25:026:27Waning Crescent15Sat
16Sun8:399.69:119.52:270.62:570.15:006:28Waning Crescent16Sun
17Mon9:309.79:569.73:190.33:430.04:586:30Waning Crescent17Mon
18Tue10:179.710:369.94:050.04:240.14:576:31New Moon18Tue
19Wed10:599.611:1310.04:48-0.15:010.34:556:32New Moon19Wed
20Thu11:399.411:489.95:27-0.25:360.54:546:33New Moon20Thu
21Fri12:179.26:04-0.16:110.84:526:34New Moon21Fri
22Sat12:219.812:548.96:400.06:451.14:506:36Waxing Crescent22Sat
23Sun12:559.61:328.67:160.27:211.44:496:37Waxing Crescent23Sun
24Mon1:319.42:138.37:550.58:011.64:476:38Waxing Crescent24Mon
25Tue2:129.12:588.18:380.88:461.94:466:39Waxing Crescent25Tue
26Wed2:578.93:477.99:251.09:352.14:446:40First Quarter26Wed
27Thu3:488.74:407.810:161.110:292.14:436:41First Quarter27Thu
28Fri4:438.65:358.011:101.111:272.04:416:43First Quarter28Fri
29Sat5:428.76:308.312:061.04:406:44First Quarter29Sat
30Sun6:429.07:238.812:271.61:020.74:386:45Waxing Gibbous30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418150)

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 Portland, ME Tides

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

Portland, ME is currently in a transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

What datum are Portland, 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 Portland, ME?

Tide predictions for Portland, 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 Portland, ME?

Tide data for Portland, ME is sourced from NOAA Station #8418150. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8418150.

What is the moon phase in Portland, ME tonight?

Tonight the moon over Portland, ME is Waxing Crescent (30% illuminated). This places Portland, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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

Image Credits: Flickr.com.

Concrete Ships Hiding in Plain Sight: The Forgotten Breakwaters of America's Harbors

By Jordan Hanssen, best4boats. There's a good chance a concrete ship is lurking in your… More

Maritime History

Image Credits: Flickr.com.

Is Offshore Construction Noise Stressing New England's Lobsters? WHOI Scientists Want to Know

By Kiran Johnson, whoi.edu. As offshore wind farms multiply along the New England coast, a… More

Coastal LifeOcean AwarenessOcean Science

The future of fisheries-independent surveys will include traditional capture-based surveys as well as advanced technology such as acoustic, optical, and molecular tools deployed from survey vessels, uncrewed vehicles, and moored to the seafloor. Credit: NOAA Fisheries/Su Kim

Charting the Future of Fisheries-Independent Surveys

By fisheries.noaa.gov, fisheries.noaa.gov. Fisheries-independent surveys operate on dedicated survey vessels and are the foundation of… More

Ocean Science

Coastally-trapped Kelvin waves, a signature of El Niño, traveled north along the West Coast during the 1997/1998 El Niño, as shown in a map of sea surface height anomalies. Darker reds show sea levels higher than normal, while darker blues show heights below normal. Scientists are now watching for similar waves to move up the West Coast this fall. Credit: Dillon Amaya/North Carolina State University

Ocean Indicators We’re Tracking for El Niño’s Arrival on the West Coast

By fisheries.noaa.gov, fisheries.noaa.gov. Has El Niño reached the West Coast? You might think it has.… More

Coastal NewsExtreme WeatherOcean ScienceWeather & Tides

Docked fishing boats at Yaquina Bay, Newport, Oregon. Credit: iStock

Advancing Agency-Level Reforms to Restore American Seafood Competitiveness

By fisheries.noaa.gov, fisheries.noaa.gov. Over the past year, I have met with fishermen, processors, coastal community… More

Coastal NewsFishingFood

Image Credits: Wikimedia commons.

Coral IVF: How Scientists Are Breeding Heat-Resistant Reefs for Florida's Future

By Dawn Anderson, best4boats.com. The reefs that protect South Florida's coastlines, harbors, and marinas are… More

Ocean Science

The Sacramento River near the main spawning area of winter-run Chinook salmon blocked by dams from their original mountain spawning habitat. The Sundial Bridge in Redding rises in the background. Credit: Larisa Thacher/UC Davis Center for Watershed Sciences

A Secret to Survival for California’s Most Endangered Salmon

By fisheries.noaa.gov, fisheries.noaa.gov. Traditional field research combined with new technology has revealed a secret to… More

Coastal NewsEnvironment

A group of melon-headed whales swimming together on February 1, 2026, seen during the Winter Hawaiian Islands Cetacean and Ecosystem Assessment Survey. Credit: NOAA Fisheries/Mary Applegate, taken under NOAA permit

A Winter at Sea Reveals Seasonal Habits of Whales, Dolphins, and Seabirds in Hawaiʻi

By fisheries.noaa.gov, fisheries.noaa.gov. The Hawaiian archipelago is teeming with marine life, and winter brings some… More

Ocean Science

NOAA Autonomous Surface Vehicle in Narragansett Bay during testing. Goat Island and the Newport Bridge in the background.

Beyond Ocean Mapping: Using Uncrewed Vehicles to Advance Ocean Research

By fisheries.noaa.gov, fisheries.noaa.gov. It’s January off of Nantucket Shoals. An uncrewed surface vehicle begins a… More

Ocean Science

Your Privacy Choices