Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Monday, July 27, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 4h 17m at 4:32 pm (1.7 ft)
Next high tide : 10:47 pm (9.6 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:25 am
Moon phase : Full Moon (96% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Feb 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:049.412:1510.16:020.16:31-0.56:584:50Waning Gibbous1Tue
2Wed12:439.412:559.76:440.27:08-0.16:574:52Waning Gibbous2Wed
3Thu1:219.31:369.37:250.47:450.36:554:53Waning Gibbous3Thu
4Fri1:599.22:188.88:070.68:230.76:544:55Waning Gibbous4Fri
5Sat2:399.03:038.38:520.99:041.16:534:56Third Quarter5Sat
6Sun3:228.73:537.89:411.19:491.56:524:57Third Quarter6Sun
7Mon4:108.54:477.410:331.410:391.96:514:59Third Quarter7Mon
8Tue5:028.45:477.211:301.511:342.06:495:00Third Quarter8Tue
9Wed5:598.46:507.212:331.46:485:01Waning Crescent9Wed
10Thu6:598.67:487.512:342.01:331.26:475:03Waning Crescent10Thu
11Fri7:549.08:397.81:331.82:260.76:455:04Waning Crescent11Fri
12Sat8:449.59:248.42:251.33:110.26:445:05Waning Crescent12Sat
13Sun9:3010.010:068.93:130.83:53-0.36:435:07New Moon13Sun
14Mon10:1510.410:489.53:580.24:34-0.86:415:08New Moon14Mon
15Tue10:5910.711:2910.04:44-0.45:15-1.16:405:10New Moon15Tue
16Wed11:4410.85:30-0.85:57-1.36:385:11Waxing Crescent16Wed
17Thu12:1110.412:3010.76:17-1.16:40-1.36:375:12Waxing Crescent17Thu
18Fri12:5410.71:1810.47:05-1.27:25-1.06:365:14Waxing Crescent18Fri
19Sat1:4010.72:099.97:56-1.18:14-0.66:345:15Waxing Crescent19Sat
20Sun2:3110.53:079.38:52-0.89:080.06:325:16First Quarter20Sun
21Mon3:2710.24:108.89:54-0.410:080.56:315:18First Quarter21Mon
22Tue4:309.95:198.311:000.011:131.06:295:19First Quarter22Tue
23Wed5:399.66:328.212:130.26:285:20Waxing Gibbous23Wed
24Thu6:519.57:428.312:261.21:250.26:265:21Waxing Gibbous24Thu
25Fri7:589.68:428.61:371.02:280.06:255:23Waxing Gibbous25Fri
26Sat8:569.89:348.92:390.83:21-0.26:235:24Waxing Gibbous26Sat
27Sun9:479.910:209.23:320.44:08-0.36:215:25Full Moon27Sun
28Mon10:3310.011:019.44:190.24:50-0.46:205:27Full Moon28Mon
29Tue11:159.911:389.55:030.05:27-0.36:185:28Full Moon29Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418150)

Common Questions About Portland, ME Tides

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What time does the tide turn (slack tide) in Portland, ME today?

Slack tide in Portland, ME is approximately 7:39 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Portland, ME?

Portland, ME is currently in a spring phase. Tonight's moon is 96% 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 maximum.

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 Full Moon (96% illuminated). This places Portland, ME in a spring tide cycle, so tidal ranges are near their weekly maximum 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