Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 5h 55m at 11:59 am (0.5 ft)
Next high tide : 6:22 pm (9.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 4:59 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Oct 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:099.95:580.26:180.16:396:21New Moon1Sat
2Sun12:309.712:459.86:330.36:550.16:406:19New Moon2Sun
3Mon1:089.51:199.77:080.67:310.36:416:18Waxing Crescent3Mon
4Tue1:459.21:539.67:420.88:080.56:426:16Waxing Crescent4Tue
5Wed2:228.92:309.48:181.18:470.76:436:14Waxing Crescent5Wed
6Thu3:038.63:109.28:581.49:300.96:456:12Waxing Crescent6Thu
7Fri3:478.33:559.09:411.610:171.16:466:10First Quarter7Fri
8Sat4:368.14:458.810:301.811:081.26:476:09First Quarter8Sat
9Sun5:298.05:398.811:231.86:486:07First Quarter9Sun
10Mon6:248.16:369.012:021.212:191.76:496:05First Quarter10Mon
11Tue7:208.47:359.212:591.01:181.46:516:04Waxing Gibbous11Tue
12Wed8:158.98:339.71:550.62:170.86:526:02Waxing Gibbous12Wed
13Thu9:069.69:2610.22:490.23:110.26:536:00Waxing Gibbous13Thu
14Fri9:5410.310:1710.63:39-0.44:03-0.66:545:58Full Moon14Fri
15Sat10:4110.911:0810.94:26-0.84:53-1.26:565:57Full Moon15Sat
16Sun11:2911.411:5911.15:14-1.15:44-1.76:575:55Full Moon16Sun
17Mon12:1711.76:03-1.26:35-1.96:585:53Full Moon17Mon
18Tue12:5011.01:0711.86:53-1.27:27-1.96:595:52Waning Gibbous18Tue
19Wed1:4310.81:5911.67:44-0.98:21-1.67:005:50Waning Gibbous19Wed
20Thu2:3910.42:5511.28:38-0.59:19-1.17:025:49Waning Gibbous20Thu
21Fri3:3910.03:5510.79:370.010:21-0.67:035:47Third Quarter21Fri
22Sat4:439.65:0110.210:410.511:26-0.27:045:46Third Quarter22Sat
23Sun5:489.36:079.811:480.87:065:44Third Quarter23Sun
24Mon6:539.27:149.512:320.112:570.97:075:42Third Quarter24Mon
25Tue7:559.28:179.51:360.32:030.97:085:41Waning Crescent25Tue
26Wed8:519.49:139.52:360.43:020.67:095:39Waning Crescent26Wed
27Thu9:409.610:039.53:270.43:520.47:115:38Waning Crescent27Thu
28Fri10:249.810:479.54:120.44:370.27:125:37Waning Crescent28Fri
29Sat11:039.911:289.44:520.45:180.17:135:35New Moon29Sat
30Sun11:409.95:290.55:560.07:155:34New Moon30Sun
31Mon12:079.312:159.96:040.76:310.17:165:32New Moon31Mon
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 3:10 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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places Portland, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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