Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 45m at 8:52 pm (1.3 ft)
Next high tide (tomorrow) : 3:01 am (9.5 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Mar 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:368.68:187.91:201.82:071.06:165:30Waning Crescent1Wed
2Thu8:278.99:058.22:131.62:540.76:145:31Waning Crescent2Thu
3Fri9:139.39:468.62:591.23:350.36:135:32Waning Crescent3Fri
4Sat9:549.610:258.93:400.84:120.06:115:33New Moon4Sat
5Sun10:339.811:019.34:180.54:47-0.26:095:35New Moon5Sun
6Mon11:1110.011:369.64:560.15:22-0.46:075:36New Moon6Mon
7Tue11:4810.15:35-0.25:58-0.66:065:37New Moon7Tue
8Wed12:109.912:2710.16:15-0.46:35-0.66:045:38Waxing Crescent8Wed
9Thu12:4710.11:0810.06:57-0.67:16-0.56:025:40Waxing Crescent9Thu
10Fri1:2710.21:549.77:42-0.68:00-0.26:005:41Waxing Crescent10Fri
11Sat2:1210.22:459.48:32-0.58:500.15:595:42First Quarter11Sat
12Sun3:0410.03:439.09:28-0.39:450.45:575:43First Quarter12Sun
13Mon4:029.94:488.710:30-0.110:470.75:555:45First Quarter13Mon
14Tue5:079.75:588.611:370.011:550.85:535:46First Quarter14Tue
15Wed6:179.77:098.712:480.05:525:47Waxing Gibbous15Wed
16Thu7:289.98:139.11:060.71:56-0.35:505:48Waxing Gibbous16Thu
17Fri8:3110.29:109.62:130.32:54-0.65:485:49Waxing Gibbous17Fri
18Sat9:2810.510:0210.03:11-0.23:47-0.95:465:51Full Moon18Sat
19Sun10:2010.710:4910.24:04-0.54:35-1.05:445:52Full Moon19Sun
20Mon11:0910.711:3310.44:54-0.85:20-0.95:435:53Full Moon20Mon
21Tue11:5510.45:41-0.86:02-0.75:415:54Full Moon21Tue
22Wed12:1510.312:3910.16:25-0.76:43-0.35:395:56Waning Gibbous22Wed
23Thu12:5510.21:229.67:08-0.57:240.25:375:57Waning Gibbous23Thu
24Fri1:369.82:079.17:52-0.18:050.75:355:58Waning Gibbous24Fri
25Sat2:189.52:558.68:380.38:501.25:335:59Waning Gibbous25Sat
26Sun3:049.13:468.19:270.79:391.65:326:00Third Quarter26Sun
27Mon3:558.74:417.810:201.110:322.05:306:02Third Quarter27Mon
28Tue4:508.55:407.711:181.311:312.15:286:03Third Quarter28Tue
29Wed5:498.46:407.712:191.45:266:04Third Quarter29Wed
30Thu6:508.57:358.012:322.01:171.25:246:05Waning Crescent30Thu
31Fri7:458.78:248.41:311.72:080.95:236:06Waning Crescent31Fri
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 11:56 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 81% 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 Waning Gibbous (81% 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