Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

44°
H 52°
L 36°
SW
5mph
Low tide
11:04 am
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 1h 11m at 11:04 am (2.3 ft)
Next high tide : 5:22 pm (8.5 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

Casco Bay Boat Transport

Casco Bay Boat Transport

USCG Station South Portland, ME
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)
Yarmouth Boat Yard is an authorized Pursuit Boats dealer

Yarmouth Boat Yard
Hamilton Marine - Portland

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

Freedom Boat Club of Maine

Portland, ME Tides - Mar 1817

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:019.99:398.92:430.93:26-0.36:215:33Waxing Gibbous1Sat
2Sun9:5010.510:249.53:320.24:11-0.96:205:34Full Moon2Sun
3Mon10:3810.911:0910.14:21-0.44:56-1.36:185:35Full Moon3Mon
4Tue11:2511.111:5310.65:10-1.05:40-1.56:165:37Full Moon4Tue
5Wed12:1411.15:59-1.36:25-1.56:145:38Waning Gibbous5Wed
6Thu12:3810.91:0310.86:48-1.57:11-1.26:135:39Waning Gibbous6Thu
7Fri1:2510.91:5510.37:40-1.38:00-0.86:115:41Waning Gibbous7Fri
8Sat2:1610.72:529.78:36-1.08:54-0.26:095:42Third Quarter8Sat
9Sun3:1110.43:559.19:36-0.69:520.56:075:43Third Quarter9Sun
10Mon4:129.95:028.510:41-0.110:571.06:065:44Third Quarter10Mon
11Tue5:189.56:138.211:520.26:045:45Third Quarter11Tue
12Wed6:299.37:238.212:071.31:050.46:025:47Waning Crescent12Wed
13Thu7:389.38:258.41:191.32:100.36:005:48Waning Crescent13Thu
14Fri8:389.59:178.72:221.13:040.15:595:49Waning Crescent14Fri
15Sat9:299.610:039.03:160.83:510.05:575:50Waning Crescent15Sat
16Sun10:159.710:449.24:020.54:33-0.15:555:52New Moon16Sun
17Mon10:569.711:209.34:450.35:090.05:535:53New Moon17Mon
18Tue11:349.611:549.45:230.25:430.15:515:54New Moon18Tue
19Wed12:109.45:590.26:140.35:505:55New Moon19Wed
20Thu12:259.412:459.16:340.26:450.65:485:56Waxing Crescent20Thu
21Fri12:569.31:218.87:080.37:180.95:465:58Waxing Crescent21Fri
22Sat1:299.21:588.57:450.57:541.25:445:59Waxing Crescent22Sat
23Sun2:049.02:408.18:260.78:341.55:426:00Waxing Crescent23Sun
24Mon2:458.83:277.89:111.09:191.85:416:01First Quarter24Mon
25Tue3:338.74:207.510:021.210:112.05:396:02First Quarter25Tue
26Wed4:278.65:197.510:591.211:092.05:376:04First Quarter26Wed
27Thu5:288.66:227.612:011.15:356:05First Quarter27Thu
28Fri6:338.97:238.112:121.81:040.85:336:06Waxing Gibbous28Fri
29Sat7:359.48:178.71:161.32:010.25:326:07Waxing Gibbous29Sat
30Sun8:3110.09:069.52:150.62:52-0.45:306:08Waxing Gibbous30Sun
31Mon9:2410.59:5310.33:08-0.23:39-0.95:286:10Full Moon31Mon
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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