Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 3h 43m at 11:04 am (0.0 ft)
Next high tide : 5:27 pm (9.6 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 4:59 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Jan 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:189.87:538.912:560.41:420.17:144:14Waning Crescent1Tue
2Wed8:129.98:498.91:540.52:38-0.27:144:15Waning Crescent2Wed
3Thu9:0210.09:408.92:460.63:28-0.37:144:16Waning Crescent3Thu
4Fri9:4710.110:268.93:330.74:14-0.47:144:17New Moon4Fri
5Sat10:3010.011:088.84:170.74:56-0.47:144:18New Moon5Sat
6Sun11:1010.011:488.84:580.85:35-0.37:144:19New Moon6Sun
7Mon11:489.95:360.86:12-0.27:144:20New Moon7Mon
8Tue12:258.712:259.76:130.96:470.07:134:21Waxing Crescent8Tue
9Wed1:028.61:029.56:511.07:220.27:134:22Waxing Crescent9Wed
10Thu1:398.51:409.27:291.27:590.47:134:23Waxing Crescent10Thu
11Fri2:178.52:218.98:111.38:390.67:134:24Waxing Crescent11Fri
12Sat2:588.43:068.68:561.49:210.87:124:25First Quarter12Sat
13Sun3:418.53:558.49:451.410:060.97:124:27First Quarter13Sun
14Mon4:278.64:478.210:371.310:541.17:114:28First Quarter14Mon
15Tue5:168.85:448.111:331.111:471.17:114:29First Quarter15Tue
16Wed6:099.16:458.212:320.87:104:30Waxing Gibbous16Wed
17Thu7:049.57:458.412:431.01:320.37:104:31Waxing Gibbous17Thu
18Fri8:0010.08:428.81:410.72:28-0.37:094:33Waxing Gibbous18Fri
19Sat8:5310.69:359.32:360.33:21-0.97:084:34Full Moon19Sat
20Sun9:4611.110:289.73:29-0.24:13-1.57:084:35Full Moon20Sun
21Mon10:3911.511:2010.14:22-0.65:05-1.87:074:36Full Moon21Mon
22Tue11:3211.75:15-0.95:56-2.07:064:38Full Moon22Tue
23Wed12:1110.312:2511.66:09-1.06:47-1.97:064:39Waning Gibbous23Wed
24Thu1:0310.41:1911.37:03-1.07:38-1.77:054:40Waning Gibbous24Thu
25Fri1:5610.32:1510.77:59-0.88:32-1.27:044:42Waning Gibbous25Fri
26Sat2:5210.23:1510.18:59-0.59:28-0.67:034:43Third Quarter26Sat
27Sun3:4910.04:179.410:01-0.110:260.07:024:44Third Quarter27Sun
28Mon4:489.75:228.911:070.111:260.57:014:46Third Quarter28Mon
29Tue5:499.56:288.512:140.37:004:47Third Quarter29Tue
30Wed6:509.47:338.412:290.91:200.36:594:48Waning Crescent30Wed
31Thu7:499.48:308.41:311.02:190.26:584:50Waning Crescent31Thu
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 2:15 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 48% 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 (48% 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