Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

47°
H -°
L 36°
SSW
5mph
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 2h 27m 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

Yarmouth Boat Yard is an authorized Pursuit Boats dealer

Yarmouth Boat Yard
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)
Freedom Boat Club at Yarmouth Boat Yard, Maine

Freedom Boat Club of Maine
Casco Bay Boat Transport

Casco Bay Boat Transport

USCG Station South Portland, ME
Hamilton Marine - Portland

Hamilton Marine - Portland

Portland, ME Tides - Mar 1816

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:239.112:339.46:220.56:410.26:215:33Waxing Crescent1Fri
2Sat12:539.11:079.16:560.57:120.46:195:35Waxing Crescent2Sat
3Sun1:249.11:438.87:320.57:460.76:175:36Waxing Crescent3Sun
4Mon1:589.12:228.58:120.68:240.96:165:37Waxing Crescent4Mon
5Tue2:369.03:078.28:560.79:081.26:145:38First Quarter5Tue
6Wed3:218.93:587.99:450.89:571.46:125:40First Quarter6Wed
7Thu4:128.94:567.810:410.910:531.56:115:41First Quarter7Thu
8Fri5:119.06:017.811:440.811:561.46:095:42First Quarter8Fri
9Sat6:169.27:088.112:500.56:075:43Waxing Gibbous9Sat
10Sun7:239.78:108.71:021.11:540.06:055:45Waxing Gibbous10Sun
11Mon8:2510.39:069.32:060.52:51-0.76:045:46Waxing Gibbous11Mon
12Tue9:2210.89:5810.03:04-0.23:44-1.26:025:47Full Moon12Tue
13Wed10:1611.210:4810.63:59-0.94:34-1.66:005:48Full Moon13Wed
14Thu11:0911.411:3711.04:52-1.45:22-1.85:585:49Full Moon14Thu
15Fri12:0011.35:44-1.76:10-1.75:565:51Waning Gibbous15Fri
16Sat12:2511.212:5211.06:36-1.76:58-1.35:555:52Waning Gibbous16Sat
17Sun1:1311.11:4410.47:28-1.57:48-0.75:535:53Waning Gibbous17Sun
18Mon2:0310.82:409.78:23-1.18:400.05:515:54Waning Gibbous18Mon
19Tue2:5710.33:409.19:21-0.59:370.75:495:56Third Quarter19Tue
20Wed3:559.74:448.510:240.110:391.35:475:57Third Quarter20Wed
21Thu4:589.25:508.111:300.511:451.65:465:58Third Quarter21Thu
22Fri6:048.96:568.012:380.85:445:59Third Quarter22Fri
23Sat7:108.87:568.112:541.71:420.85:426:00Waning Crescent23Sat
24Sun8:088.98:478.41:561.52:350.75:406:02Waning Crescent24Sun
25Mon8:599.19:318.72:481.33:210.55:386:03Waning Crescent25Mon
26Tue9:429.310:108.93:320.94:000.45:366:04Waning Crescent26Tue
27Wed10:229.410:469.24:120.74:350.35:356:05New Moon27Wed
28Thu11:009.411:189.44:490.55:070.35:336:06New Moon28Thu
29Fri11:359.411:499.55:230.35:370.45:316:07New Moon29Fri
30Sat12:099.25:560.26:070.55:296:09New Moon30Sat
31Sun12:199.512:439.16:300.16:400.75:276:10Waxing Crescent31Sun
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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