Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

45°
H -°
L 37°
SSW
3mph
Low tide
11:52 pm
Photo Credits

Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Sunday, October 18, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 17m at 11:52 pm (1.6 ft)
Next high tide (tomorrow) : 6:13 am (7.6 ft)
Sunset today : 5:53 pm
Sunrise tomorrow : 6:59 am
Moon phase : First Quarter (50% 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
Casco Bay Boat Transport

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

Freedom Boat Club of Maine
Sunset, calm water and the islands on the Maine Island Trail

Maine Island Trail Association (MITA)
Maine Yacht Center docks, Portland, Maine

Maine Yacht Center

Portland, ME Tides - Jun 1870

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:318.76:140.16:161.34:057:19Waxing Crescent1Wed
2Thu12:279.91:108.76:520.06:561.34:057:19Waxing Crescent2Thu
3Fri1:069.91:518.77:330.07:401.34:047:20Waxing Crescent3Fri
4Sat1:509.82:368.78:180.18:281.34:047:21Waxing Crescent4Sat
5Sun2:389.83:268.99:060.19:221.24:047:22First Quarter5Sun
6Mon3:339.74:199.19:580.110:201.04:037:22First Quarter6Mon
7Tue4:319.65:149.510:520.111:210.84:037:23First Quarter7Tue
8Wed5:329.66:119.911:490.04:037:24Waxing Gibbous8Wed
9Thu6:369.67:0910.412:240.412:47-0.14:027:24Waxing Gibbous9Thu
10Fri7:409.78:0510.91:28-0.21:45-0.24:027:25Waxing Gibbous10Fri
11Sat8:409.98:5911.32:27-0.72:41-0.34:027:26Waxing Gibbous11Sat
12Sun9:3810.09:5111.63:24-1.23:35-0.44:027:26Full Moon12Sun
13Mon10:3410.110:4411.64:18-1.54:28-0.34:027:27Full Moon13Mon
14Tue11:2810.111:3611.55:11-1.65:21-0.24:027:27Full Moon14Tue
15Wed12:2110.06:04-1.56:130.04:027:27Waning Gibbous15Wed
16Thu12:2811.21:139.76:55-1.27:050.44:027:28Waning Gibbous16Thu
17Fri1:1910.82:069.57:46-0.87:590.74:027:28Waning Gibbous17Fri
18Sat2:1210.33:009.28:39-0.38:551.14:027:29Waning Gibbous18Sat
19Sun3:079.73:539.19:310.29:521.34:027:29Third Quarter19Sun
20Mon4:039.24:469.010:230.610:501.54:027:29Third Quarter20Mon
21Tue4:598.85:388.911:150.911:491.64:027:29Third Quarter21Tue
22Wed5:568.56:299.012:061.24:037:30Third Quarter22Wed
23Thu6:538.37:199.112:471.512:581.44:037:30Waning Crescent23Thu
24Fri7:478.28:059.31:411.31:461.54:037:30Waning Crescent24Fri
25Sat8:378.38:489.52:301.02:311.54:047:30Waning Crescent25Sat
26Sun9:238.49:299.73:140.73:121.44:047:30Waning Crescent26Sun
27Mon10:068.510:089.83:550.53:521.44:047:30New Moon27Mon
28Tue10:488.610:4710.04:340.24:311.34:057:30New Moon28Tue
29Wed11:288.711:2610.15:120.05:111.14:057:30New Moon29Wed
30Thu12:088.85:51-0.15:521.04:067:30New Moon30Thu
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.
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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 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 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 (50% 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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