Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

60°
H -°
L 58°
NNE
2mph
High tide
4:04 am
Photo Credits

Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Thursday, September 17, 2026
The tide is currently rising in Portland, ME.
Next low tide : 9:56 am (1.7 ft)
Next high tide : in 37m at 4:04 am (8.3 ft)
Sunset today : 6:47 pm
Sunrise tomorrow : 6:22 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Featured Local Businesses

USCG Station South Portland, ME
Hamilton Marine - Portland

Hamilton Marine - Portland
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)
Freedom Boat Club at Yarmouth Boat Yard, Maine

Freedom Boat Club of Maine
Casco Bay Boat Transport

Casco Bay Boat Transport
Maine Yacht Center docks, Portland, Maine

Maine Yacht Center

Portland, ME Tides - Apr 1870

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:309.511:459.65:180.15:330.35:266:11New Moon1Fri
2Sat12:059.35:530.16:050.55:246:12New Moon2Sat
3Sun12:169.612:409.16:270.16:370.75:226:13Waxing Crescent3Sun
4Mon12:489.51:158.97:010.27:100.95:206:14Waxing Crescent4Mon
5Tue1:219.41:538.67:380.47:471.25:196:16Waxing Crescent5Tue
6Wed1:579.22:348.38:190.68:281.45:176:17Waxing Crescent6Wed
7Thu2:399.03:218.19:040.89:151.65:156:18First Quarter7Thu
8Fri3:278.94:137.99:550.910:081.75:136:19First Quarter8Fri
9Sat4:228.95:118.010:510.911:061.75:126:20First Quarter9Sat
10Sun5:229.06:128.211:510.85:106:22First Quarter10Sun
11Mon6:269.27:128.712:081.412:520.45:086:23Waxing Gibbous11Mon
12Tue7:299.78:089.41:120.91:50-0.15:066:24Waxing Gibbous12Tue
13Wed8:2710.28:5910.22:110.12:43-0.65:056:25Waxing Gibbous13Wed
14Thu9:2110.79:4810.93:06-0.63:33-1.05:036:26Full Moon14Thu
15Fri10:1411.010:3711.43:59-1.34:22-1.35:016:28Full Moon15Fri
16Sat11:0711.111:2511.74:51-1.85:11-1.45:006:29Full Moon16Sat
17Sun11:5911.05:43-2.06:01-1.24:586:30Waning Gibbous17Sun
18Mon12:1511.712:5210.76:34-2.06:51-0.84:566:31Waning Gibbous18Mon
19Tue1:0511.51:4610.37:28-1.77:44-0.34:556:32Waning Gibbous19Tue
20Wed1:5911.02:459.78:24-1.28:410.34:536:33Waning Gibbous20Wed
21Thu2:5710.43:489.29:25-0.69:430.84:526:35Third Quarter21Thu
22Fri4:009.94:528.910:290.010:491.24:506:36Third Quarter22Fri
23Sat5:069.45:578.711:340.411:571.44:486:37Third Quarter23Sat
24Sun6:129.16:598.712:390.64:476:38Waning Crescent24Sun
25Mon7:169.07:558.91:041.41:390.74:456:39Waning Crescent25Mon
26Tue8:129.18:439.12:031.12:290.64:446:41Waning Crescent26Tue
27Wed9:029.19:259.42:530.83:130.64:426:42Waning Crescent27Wed
28Thu9:469.210:049.63:370.63:520.64:416:43Waning Crescent28Thu
29Fri10:269.210:399.74:170.34:270.74:396:44New Moon29Fri
30Sat11:059.111:139.84:540.25:010.84:386:45New Moon30Sat
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 transitional phase. Tonight's moon is 39% 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 (39% 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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