Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

60°
H -°
L 58°
NNE
3mph
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 1h 31m 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

Maine Yacht Center docks, Portland, Maine

Maine Yacht Center

USCG Station South Portland, ME
Casco Bay Boat Transport

Casco Bay Boat Transport
Sunset, calm water and the islands on the Maine Island Trail

Maine Island Trail Association (MITA)
Hamilton Marine - Portland

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

Freedom Boat Club of Maine
Yarmouth Boat Yard is an authorized Pursuit Boats dealer

Yarmouth Boat Yard

Portland, ME Tides - May 1870

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:419.111:459.85:290.15:330.94:366:46New Moon1Sun
2Mon12:178.96:020.16:061.04:356:48New Moon2Mon
3Tue12:179.712:538.86:370.16:411.24:346:49Waxing Crescent3Tue
4Wed12:519.61:308.67:130.27:191.44:326:50Waxing Crescent4Wed
5Thu1:289.52:118.47:540.38:011.54:316:51Waxing Crescent5Thu
6Fri2:109.42:578.38:380.48:491.64:306:52Waxing Crescent6Fri
7Sat2:599.33:488.39:280.59:421.64:286:53First Quarter7Sat
8Sun3:539.34:438.510:220.510:401.44:276:54First Quarter8Sun
9Mon4:539.35:418.811:190.411:421.14:266:56First Quarter9Mon
10Tue5:569.56:409.312:180.24:256:57Waxing Gibbous10Tue
11Wed7:009.77:3610.012:460.61:17-0.14:236:58Waxing Gibbous11Wed
12Thu8:0110.18:3010.71:48-0.12:12-0.54:226:59Waxing Gibbous12Thu
13Fri8:5910.49:2111.32:45-0.83:05-0.74:217:00Full Moon13Fri
14Sat9:5410.610:1211.73:40-1.43:56-0.94:207:01Full Moon14Sat
15Sun10:4910.711:0311.94:33-1.84:48-0.94:197:02Full Moon15Sun
16Mon11:4310.611:5411.85:26-1.95:39-0.74:187:03Full Moon16Mon
17Tue12:3610.46:18-1.86:31-0.44:177:04Waning Gibbous17Tue
18Wed12:4511.51:3110.07:12-1.57:240.14:167:05Waning Gibbous18Wed
19Thu1:3911.02:279.68:06-1.08:210.64:157:07Waning Gibbous19Thu
20Fri2:3610.43:279.29:04-0.59:211.04:147:08Third Quarter20Fri
21Sat3:369.84:269.010:030.110:241.34:137:09Third Quarter21Sat
22Sun4:379.35:258.811:020.511:281.54:127:10Third Quarter22Sun
23Mon5:399.06:228.912:010.84:117:11Third Quarter23Mon
24Tue6:398.77:169.012:311.512:571.04:117:12Waning Crescent24Tue
25Wed7:368.78:049.21:301.31:481.14:107:13Waning Crescent25Wed
26Thu8:278.78:479.42:211.02:331.14:097:13Waning Crescent26Thu
27Fri9:138.79:279.63:070.83:131.14:087:14Waning Crescent27Fri
28Sat9:568.810:049.73:480.53:501.14:087:15New Moon28Sat
29Sun10:378.810:409.84:260.34:261.24:077:16New Moon29Sun
30Mon11:168.811:159.95:020.25:021.24:067:17New Moon30Mon
31Tue11:548.811:519.95:380.15:381.24:067:18New Moon31Tue
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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