Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Portland, ME.
Next low tide (tomorrow) : in 3h 21m at 12:58 am (0.3 ft)
Next high tide (tomorrow) : 7:11 am (8.4 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:36 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Feb 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:5410.13:229.39:08-0.39:270.16:584:50First Quarter1Fri
2Sat3:489.74:228.610:080.210:220.86:574:52First Quarter2Sat
3Sun4:449.35:258.111:110.511:201.46:564:53First Quarter3Sun
4Mon5:439.06:307.712:160.86:554:54First Quarter4Mon
5Tue6:458.87:347.612:241.71:220.96:534:56Waxing Gibbous5Tue
6Wed7:458.98:307.71:271.82:200.86:524:57Waxing Gibbous6Wed
7Thu8:389.09:188.02:231.63:090.66:514:58Waxing Gibbous7Thu
8Fri9:249.210:018.23:111.43:530.46:505:00Waxing Gibbous8Fri
9Sat10:069.410:408.43:531.24:310.26:485:01Full Moon9Sat
10Sun10:449.611:168.74:310.95:050.16:475:03Full Moon10Sun
11Mon11:209.611:498.95:070.85:360.06:465:04Full Moon11Mon
12Tue11:549.65:420.66:060.06:445:05Full Moon12Tue
13Wed12:199.012:279.56:160.56:370.06:435:07Waning Gibbous13Wed
14Thu12:509.21:029.36:520.47:100.26:425:08Waning Gibbous14Thu
15Fri1:229.31:399.07:300.37:450.36:405:09Waning Gibbous15Fri
16Sat1:579.42:218.78:120.38:260.66:395:11Waning Gibbous16Sat
17Sun2:399.43:098.49:000.49:130.86:375:12Third Quarter17Sun
18Mon3:279.44:058.19:540.510:061.16:365:13Third Quarter18Mon
19Tue4:239.45:097.910:550.511:061.26:345:15Third Quarter19Tue
20Wed5:279.46:207.912:030.56:335:16Waning Crescent20Wed
21Thu6:379.67:318.212:141.11:140.16:315:17Waning Crescent21Thu
22Fri7:4710.18:358.81:240.82:19-0.46:305:19Waning Crescent22Fri
23Sat8:4910.69:319.42:290.23:16-0.96:285:20Waning Crescent23Sat
24Sun9:4611.010:2310.03:28-0.44:09-1.46:275:21New Moon24Sun
25Mon10:4011.211:1210.54:23-0.94:58-1.66:255:23New Moon25Mon
26Tue11:3211.211:5910.85:16-1.25:45-1.56:235:24New Moon26Tue
27Wed12:2110.96:06-1.46:31-1.36:225:25Waxing Crescent27Wed
28Thu12:4510.81:1010.46:56-1.27:16-0.86:205:27Waxing Crescent28Thu
29Fri1:3110.52:009.77:46-0.98:02-0.16:185:28Waxing Crescent29Fri
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 4:04 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 32% 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 Third Quarter (32% 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