Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

35°
H 54°
L 37°
WSW
1mph
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 2h 42m 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

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

Maine Island Trail Association (MITA)
Casco Bay Boat Transport

Casco Bay Boat Transport

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

Yarmouth Boat Yard
Hamilton Marine - Portland

Hamilton Marine - Portland
Maine Yacht Center docks, Portland, Maine

Maine Yacht Center
Freedom Boat Club at Yarmouth Boat Yard, Maine

Freedom Boat Club of Maine

Portland, ME Tides - May 1817

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:4510.711:0011.84:30-1.74:45-0.94:376:46Full Moon1Thu
2Fri11:3810.611:4911.85:22-2.05:35-0.84:356:47Full Moon2Fri
3Sat12:3110.46:14-1.96:26-0.44:346:48Waning Gibbous3Sat
4Sun12:4011.51:2510.07:07-1.67:190.14:326:50Waning Gibbous4Sun
5Mon1:3311.12:239.58:02-1.18:150.64:316:51Waning Gibbous5Mon
6Tue2:3110.53:249.09:02-0.59:171.14:306:52Third Quarter6Tue
7Wed3:339.94:288.710:050.110:221.44:286:53Third Quarter7Wed
8Thu4:389.45:318.611:080.511:301.64:276:54Third Quarter8Thu
9Fri5:449.06:328.612:110.84:266:55Third Quarter9Fri
10Sat6:488.87:288.812:371.61:100.94:256:57Waning Crescent10Sat
11Sun7:468.88:169.11:371.42:010.94:246:58Waning Crescent11Sun
12Mon8:378.88:599.32:301.02:451.04:226:59Waning Crescent12Mon
13Tue9:228.89:379.53:150.73:251.04:217:00Waning Crescent13Tue
14Wed10:058.810:139.73:560.54:011.14:207:01New Moon14Wed
15Thu10:448.810:489.74:340.34:351.24:197:02New Moon15Thu
16Fri11:238.711:219.75:100.25:091.34:187:03New Moon16Fri
17Sat12:008.65:440.25:441.44:177:04New Moon17Sat
18Sun12:368.56:200.26:201.54:167:05Waxing Crescent18Sun
19Mon12:309.71:148.46:560.36:581.64:157:06Waxing Crescent19Mon
20Tue1:089.61:548.37:360.47:401.74:147:07Waxing Crescent20Tue
21Wed1:509.52:398.28:210.48:271.74:137:08Waxing Crescent21Wed
22Thu2:389.43:298.39:090.59:201.74:127:09First Quarter22Thu
23Fri3:329.44:228.510:010.510:181.54:117:10First Quarter23Fri
24Sat4:309.45:178.910:550.411:181.24:117:11First Quarter24Sat
25Sun5:319.46:139.411:510.34:107:12First Quarter25Sun
26Mon6:349.57:0910.012:220.712:480.14:097:13Waxing Gibbous26Mon
27Tue7:379.78:0310.71:240.11:44-0.14:087:14Waxing Gibbous27Tue
28Wed8:369.98:5511.22:23-0.62:38-0.34:087:15Waxing Gibbous28Wed
29Thu9:3210.19:4611.63:19-1.23:30-0.44:077:16Full Moon29Thu
30Fri10:2810.110:3811.74:12-1.54:22-0.44:067:17Full Moon30Fri
31Sat11:2310.111:3011.65:06-1.75:15-0.24:067:18Full Moon31Sat
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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