Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Portland, ME.
Next low tide : 10:09 am (-0.5 ft)
Next high tide : in 1h 32m at 3:45 am (10.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:59 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Dec 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:239.85:111.15:460.06:554:05Full Moon1Tue
2Wed12:028.611:59 AM9.85:471.26:230.16:564:05Waning Gibbous2Wed
3Thu12:398.512:369.76:251.27:020.16:574:04Waning Gibbous3Thu
4Fri1:188.41:169.67:061.37:440.26:584:04Waning Gibbous4Fri
5Sat2:008.42:019.57:511.38:310.26:594:04Waning Gibbous5Sat
6Sun2:488.42:539.48:421.39:210.27:004:04Third Quarter6Sun
7Mon3:418.63:519.39:391.210:150.27:014:04Third Quarter7Mon
8Tue4:378.94:529.310:391.011:110.27:024:04Third Quarter8Tue
9Wed5:349.35:569.311:430.77:034:04Third Quarter9Wed
10Thu6:329.87:019.412:100.112:470.17:044:04Waning Crescent10Thu
11Fri7:2910.48:039.71:09-0.11:49-0.57:044:04Waning Crescent11Fri
12Sat8:2310.99:019.92:05-0.32:47-1.17:054:04Waning Crescent12Sat
13Sun9:1611.39:5610.02:59-0.53:41-1.57:064:04New Moon13Sun
14Mon10:0711.610:5010.13:52-0.54:34-1.87:074:04New Moon14Mon
15Tue10:5911.611:4310.04:44-0.55:26-1.87:074:04New Moon15Tue
16Wed11:5011.45:35-0.36:17-1.67:084:05Waxing Crescent16Wed
17Thu12:349.812:4111.06:26-0.17:08-1.27:094:05Waxing Crescent17Thu
18Fri1:269.51:3310.57:180.38:00-0.77:094:05Waxing Crescent18Fri
19Sat2:199.22:279.98:120.78:53-0.27:104:06Waxing Crescent19Sat
20Sun3:138.93:239.39:101.19:470.37:104:06First Quarter20Sun
21Mon4:088.74:218.810:091.310:400.77:114:07First Quarter21Mon
22Tue5:028.65:198.411:091.511:331.17:114:07First Quarter22Tue
23Wed5:558.66:188.212:101.47:124:08First Quarter23Wed
24Thu6:488.77:158.112:271.31:081.37:124:08Waxing Gibbous24Thu
25Fri7:378.98:088.11:181.42:011.07:134:09Waxing Gibbous25Fri
26Sat8:229.18:568.22:061.42:480.77:134:10Waxing Gibbous26Sat
27Sun9:049.39:408.32:491.33:300.47:134:11Waxing Gibbous27Sun
28Mon9:439.610:218.43:281.24:090.27:134:11Full Moon28Mon
29Tue10:229.711:018.54:071.14:470.07:144:12Full Moon29Tue
30Wed11:009.911:408.64:451.05:24-0.27:144:13Full Moon30Wed
31Thu11:3810.05:240.96:02-0.37:144:14Full Moon31Thu
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 6:57 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 37% 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 (37% 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