Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 7m at 5:51 pm (1.3 ft)
Next high tide (tomorrow) : 12:06 am (9.8 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 5:27 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Nov 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:3411.210:0610.73:20-0.73:51-1.46:164:33New Moon1Wed
2Thu10:2211.610:5810.74:08-0.94:43-1.86:174:31New Moon2Thu
3Fri11:1111.811:5110.54:57-0.85:35-1.96:184:30New Moon3Fri
4Sat12:0111.75:47-0.66:27-1.76:204:29Waxing Crescent4Sat
5Sun12:4410.112:5311.36:39-0.27:21-1.36:214:27Waxing Crescent5Sun
6Mon1:409.71:4810.87:330.38:19-0.76:224:26Waxing Crescent6Mon
7Tue2:409.22:4910.28:320.89:21-0.26:244:25First Quarter7Tue
8Wed3:448.83:559.79:371.210:260.36:254:24First Quarter8Wed
9Thu4:488.65:019.310:441.511:300.66:264:23First Quarter9Thu
10Fri5:518.66:069.011:521.56:284:21First Quarter10Fri
11Sat6:508.77:088.912:310.812:571.46:294:20Waxing Gibbous11Sat
12Sun7:428.98:028.91:270.91:541.16:304:19Waxing Gibbous12Sun
13Mon8:289.28:508.92:140.92:430.86:314:18Waxing Gibbous13Mon
14Tue9:089.49:338.92:560.93:250.56:334:17Waxing Gibbous14Tue
15Wed9:459.610:148.83:331.04:040.36:344:16Full Moon15Wed
16Thu10:209.710:538.74:081.14:410.26:354:15Full Moon16Thu
17Fri10:539.711:308.64:421.25:160.26:374:14Full Moon17Fri
18Sat11:279.65:161.35:510.26:384:13Full Moon18Sat
19Sun12:068.512:019.65:501.46:270.36:394:13Waning Gibbous19Sun
20Mon12:438.312:379.56:271.67:050.46:404:12Waning Gibbous20Mon
21Tue1:218.21:179.47:061.77:470.66:424:11Waning Gibbous21Tue
22Wed2:038.02:029.37:511.88:330.76:434:10Waning Gibbous22Wed
23Thu2:518.02:539.28:411.89:240.76:444:10Third Quarter23Thu
24Fri3:448.13:509.19:371.710:180.66:454:09Third Quarter24Fri
25Sat4:398.44:509.110:371.511:130.56:474:08Third Quarter25Sat
26Sun5:358.95:539.211:401.16:484:08Third Quarter26Sun
27Mon6:329.56:579.412:100.312:430.56:494:07Waning Crescent27Mon
28Tue7:2610.17:579.71:070.11:44-0.26:504:07Waning Crescent28Tue
29Wed8:1810.88:549.92:01-0.22:41-0.96:514:06Waning Crescent29Wed
30Thu9:0911.39:4910.12:54-0.43:34-1.56:524:06New Moon30Thu
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 8:58 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 100% 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 (100% 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