Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

60°
H -°
L 46°
N
11mph
High tide
5:56 am
Photo Credits

Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Friday, September 18, 2026
The tide is currently rising in Portland, ME.
Next low tide (tomorrow) : 11:44 am (2.3 ft)
Next high tide (tomorrow) : in 6h 13m at 5:56 am (7.6 ft)
Sunset today : 6:46 pm
Sunrise tomorrow : 6:23 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Featured Local Businesses

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

Maine Island Trail Association (MITA)
Casco Bay Boat Transport

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

Freedom Boat Club of Maine

USCG Station South Portland, ME
Maine Yacht Center docks, Portland, Maine

Maine Yacht Center
Yarmouth Boat Yard is an authorized Pursuit Boats dealer

Yarmouth Boat Yard
Hamilton Marine - Portland

Hamilton Marine - Portland

Portland, ME Tides - Feb 1931

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:1010.49:548.92:510.73:40-0.76:584:50Full Moon1Sun
2Mon10:0210.910:449.43:440.14:30-1.26:574:52Full Moon2Mon
3Tue10:5411.311:339.94:36-0.45:19-1.66:564:53Full Moon3Tue
4Wed11:4511.45:29-0.86:06-1.86:554:55Waning Gibbous4Wed
5Thu12:2110.312:3611.36:21-1.06:54-1.76:534:56Waning Gibbous5Thu
6Fri1:0910.51:2810.97:14-1.17:42-1.46:524:57Waning Gibbous6Fri
7Sat1:5910.52:2310.38:09-0.98:33-0.86:514:59Waning Gibbous7Sat
8Sun2:5210.43:229.69:07-0.69:27-0.26:505:00Third Quarter8Sun
9Mon3:4810.14:258.910:09-0.210:250.56:485:01Third Quarter9Mon
10Tue4:479.75:318.311:140.211:271.16:475:03Third Quarter10Tue
11Wed5:509.46:418.012:240.46:465:04Waning Crescent11Wed
12Thu6:569.27:488.012:351.41:330.56:445:05Waning Crescent12Thu
13Fri7:599.28:468.11:411.52:330.46:435:07Waning Crescent13Fri
14Sat8:549.39:368.22:391.33:250.26:425:08Waning Crescent14Sat
15Sun9:439.510:208.43:291.14:100.16:405:10New Moon15Sun
16Mon10:269.611:008.64:130.94:500.06:395:11New Moon16Mon
17Tue11:059.611:358.84:530.85:250.06:375:12New Moon17Tue
18Wed11:419.65:290.75:570.06:365:14New Moon18Wed
19Thu12:088.912:159.46:040.66:270.26:345:15Waxing Crescent19Thu
20Fri12:399.012:499.26:390.66:570.36:335:16Waxing Crescent20Fri
21Sat1:109.01:248.97:140.67:290.66:315:18Waxing Crescent21Sat
22Sun1:419.02:018.67:510.78:040.96:305:19Waxing Crescent22Sun
23Mon2:168.92:428.28:320.88:431.26:285:20Waxing Crescent23Mon
24Tue2:568.93:297.89:180.99:281.56:265:22First Quarter24Tue
25Wed3:438.84:237.610:101.010:191.76:255:23First Quarter25Wed
26Thu4:368.85:247.411:091.111:171.76:235:24First Quarter26Thu
27Fri5:388.96:327.512:150.96:225:25Waxing Gibbous27Fri
28Sat6:459.27:387.912:231.61:220.56:205:27Waxing Gibbous28Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418150)

www.USHarbors.com

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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 neap phase. Tonight's moon is 48% 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 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 (48% illuminated). This places Portland, 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

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