Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Portland, ME.
Next low tide (tomorrow) : in 5h 58m at 1:40 am (0.9 ft)
Next high tide (tomorrow) : 7:49 am (8.4 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:00 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Oct 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:198.69:329.23:080.93:221.36:396:21Waxing Gibbous1Wed
2Thu10:028.910:169.43:520.74:051.06:406:19Waxing Gibbous2Thu
3Fri10:419.210:569.64:300.54:440.76:416:17Full Moon3Fri
4Sat11:189.511:349.75:050.45:210.46:426:15Full Moon4Sat
5Sun11:529.75:390.35:570.26:446:14Full Moon5Sun
6Mon12:119.712:259.96:120.36:330.06:456:12Full Moon6Mon
7Tue12:479.712:5910.06:470.37:11-0.16:466:10Waning Gibbous7Tue
8Wed1:249.61:3510.17:240.37:51-0.26:476:08Waning Gibbous8Wed
9Thu2:049.42:1410.18:040.58:35-0.16:486:07Waning Gibbous9Thu
10Fri2:489.22:5910.08:480.69:240.06:506:05Waning Gibbous10Fri
11Sat3:389.03:519.99:390.810:190.16:516:03Third Quarter11Sat
12Sun4:368.94:519.910:350.911:190.26:526:02Third Quarter12Sun
13Mon5:388.85:559.811:370.96:536:00Third Quarter13Mon
14Tue6:449.07:039.912:220.212:440.86:545:58Waning Crescent14Tue
15Wed7:499.38:1110.21:280.01:520.56:565:56Waning Crescent15Wed
16Thu8:509.89:1310.52:32-0.32:56-0.16:575:55Waning Crescent16Thu
17Fri9:4510.410:1010.73:29-0.63:54-0.66:585:53Waning Crescent17Fri
18Sat10:3710.811:0310.84:21-0.94:48-1.06:595:52New Moon18Sat
19Sun11:2511.111:5410.85:11-0.95:39-1.37:015:50New Moon19Sun
20Mon12:1311.25:58-0.86:28-1.37:025:48New Moon20Mon
21Tue12:4410.512:5811.06:45-0.57:17-1.17:035:47Waxing Crescent21Tue
22Wed1:3210.21:4410.77:31-0.18:04-0.77:045:45Waxing Crescent22Wed
23Thu2:219.72:3010.38:170.48:53-0.37:065:44Waxing Crescent23Thu
24Fri3:119.23:199.89:060.99:450.27:075:42Waxing Crescent24Fri
25Sat4:048.74:129.39:581.410:390.77:085:41First Quarter25Sat
26Sun5:008.45:098.910:541.711:351.07:105:39First Quarter26Sun
27Mon5:578.26:078.711:521.97:115:38First Quarter27Mon
28Tue6:538.27:068.612:331.212:521.97:125:36First Quarter28Tue
29Wed7:488.48:028.71:291.21:511.77:135:35Waxing Gibbous29Wed
30Thu8:378.78:538.92:211.12:441.47:155:34Waxing Gibbous30Thu
31Fri9:229.09:399.13:070.93:291.07:165:32Waxing Gibbous31Fri
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 4:44 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 67% 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 (67% 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