Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

61°
H 63°
L 37°
NNE
14mph
Low tide
1:01 pm
Photo Credits

Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Tuesday, October 20, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 1h 06m at 1:01 pm (2.2 ft)
Next high tide : 7:17 pm (8.6 ft)
Sunset today : 5:49 pm
Sunrise tomorrow : 7:01 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Featured Local Businesses

Yarmouth Boat Yard is an authorized Pursuit Boats dealer

Yarmouth Boat Yard
Sunset, calm water and the islands on the Maine Island Trail

Maine Island Trail Association (MITA)

USCG Station South Portland, ME
Hamilton Marine - Portland

Hamilton Marine - Portland
Casco Bay Boat Transport

Casco Bay Boat Transport
Freedom Boat Club at Yarmouth Boat Yard, Maine

Freedom Boat Club of Maine
Maine Yacht Center docks, Portland, Maine

Maine Yacht Center

Portland, ME Tides - Sep 1869

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:048.16:219.412:001.45:086:20Waning Crescent1Wed
2Thu7:058.47:209.912:490.71:001.15:096:19Waning Crescent2Thu
3Fri8:038.88:1810.41:480.21:590.65:106:17Waning Crescent3Fri
4Sat8:569.49:1210.92:43-0.42:540.05:126:15New Moon4Sat
5Sun9:4710.010:0511.33:34-0.93:48-0.65:136:13New Moon5Sun
6Mon10:3810.610:5711.64:24-1.34:41-1.05:146:11New Moon6Mon
7Tue11:2811.011:5011.65:13-1.65:34-1.35:156:10New Moon7Tue
8Wed12:1811.26:03-1.66:27-1.45:166:08Waxing Crescent8Wed
9Thu12:4311.31:0811.26:53-1.47:21-1.35:176:06Waxing Crescent9Thu
10Fri1:3710.92:0111.07:44-0.98:18-1.05:186:04Waxing Crescent10Fri
11Sat2:3510.32:5810.78:39-0.49:18-0.55:196:02First Quarter11Sat
12Sun3:379.73:5810.39:380.210:22-0.15:216:01First Quarter12Sun
13Mon4:419.25:019.910:400.711:280.25:225:59First Quarter13Mon
14Tue5:468.86:069.711:451.15:235:57First Quarter14Tue
15Wed6:518.77:099.612:350.412:511.25:245:55Waxing Gibbous15Wed
16Thu7:518.78:079.61:380.41:521.15:255:53Waxing Gibbous16Thu
17Fri8:448.98:579.72:320.42:451.05:265:51Waxing Gibbous17Fri
18Sat9:309.19:429.83:190.33:310.85:275:50Waxing Gibbous18Sat
19Sun10:119.210:239.84:010.24:120.65:285:48Full Moon19Sun
20Mon10:489.411:029.74:380.24:500.55:305:46Full Moon20Mon
21Tue11:239.511:389.65:120.35:260.55:315:44Full Moon21Tue
22Wed11:569.55:440.46:010.45:325:42Full Moon22Wed
23Thu12:139.512:289.56:150.66:350.55:335:40Waning Gibbous23Thu
24Fri12:489.21:009.46:480.87:110.65:345:39Waning Gibbous24Fri
25Sat1:249.01:359.37:231.07:500.75:355:37Waning Gibbous25Sat
26Sun2:038.72:149.38:031.28:340.85:365:35Waning Gibbous26Sun
27Mon2:488.42:599.28:471.49:230.95:385:33Third Quarter27Mon
28Tue3:388.33:519.29:361.510:170.95:395:31Third Quarter28Tue
29Wed4:338.24:489.310:311.511:160.85:405:29Third Quarter29Wed
30Thu5:338.35:509.511:311.35:415:28Waning Crescent30Thu
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 69% 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 First Quarter (69% 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

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