Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Portland, ME.
Next low tide (tomorrow) : in 1h 55m at 1:03 am (1.1 ft)
Next high tide (tomorrow) : 7:13 am (8.0 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:20 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Feb 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:1510.111:479.15:020.45:35-0.56:584:51Full Moon1Fri
2Sat11:549.95:410.46:12-0.36:574:52Full Moon2Sat
3Sun12:249.112:319.76:190.56:46-0.16:554:53Waning Gibbous3Sun
4Mon12:599.01:079.56:560.67:200.16:544:55Waning Gibbous4Mon
5Tue1:358.91:459.17:340.77:560.46:534:56Waning Gibbous5Tue
6Wed2:128.82:268.88:150.98:350.66:524:57Waning Gibbous6Wed
7Thu2:518.73:108.48:591.09:160.96:514:59Third Quarter7Thu
8Fri3:348.73:598.19:471.210:021.26:495:00Third Quarter8Fri
9Sat4:218.64:527.810:381.210:521.46:485:01Third Quarter9Sat
10Sun5:138.75:507.811:351.111:471.46:475:03Third Quarter10Sun
11Mon6:098.96:527.912:350.96:455:04Waning Crescent11Mon
12Tue7:079.27:518.212:461.21:350.46:445:06Waning Crescent12Tue
13Wed8:049.88:458.81:450.82:30-0.16:435:07Waning Crescent13Wed
14Thu8:5710.49:369.32:390.33:21-0.86:415:08Waning Crescent14Thu
15Fri9:4810.910:259.93:32-0.34:10-1.36:405:10New Moon15Fri
16Sat10:3911.311:1410.44:23-0.94:59-1.86:385:11New Moon16Sat
17Sun11:3011.55:14-1.35:47-2.06:375:12New Moon17Sun
18Mon12:0210.812:2111.56:05-1.56:35-1.96:355:14Waxing Crescent18Mon
19Tue12:5110.91:1311.26:58-1.57:25-1.66:345:15Waxing Crescent19Tue
20Wed1:4210.92:0710.77:52-1.38:17-1.26:325:16Waxing Crescent20Wed
21Thu2:3510.73:0610.08:50-1.09:13-0.66:315:18First Quarter21Thu
22Fri3:3310.34:099.49:51-0.510:120.16:295:19First Quarter22Fri
23Sat4:349.95:158.910:57-0.111:150.66:285:20First Quarter23Sat
24Sun5:389.66:238.612:060.26:265:22First Quarter24Sun
25Mon6:459.47:308.512:230.91:140.26:255:23Waxing Gibbous25Mon
26Tue7:489.48:288.61:301.02:160.16:235:24Waxing Gibbous26Tue
27Wed8:439.59:198.82:280.93:080.06:215:25Waxing Gibbous27Wed
28Thu9:329.710:059.03:190.73:54-0.16:205:27Waxing Gibbous28Thu
29Fri10:169.710:459.14:040.54:35-0.26:185:28Full Moon29Fri
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 4:08 am — 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 transitional phase. Tonight's moon is 62% 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 (62% 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