Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Monday, July 27, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 3h 13m at 4:32 pm (1.7 ft)
Next high tide : 10:47 pm (9.6 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:25 am
Moon phase : Full Moon (96% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Jan 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:5610.911:389.44:390.15:24-1.17:144:14Full Moon1Sat
2Sun11:4610.85:300.16:11-1.07:144:15Waning Gibbous2Sun
3Mon12:269.412:3310.46:190.26:56-0.77:144:15Waning Gibbous3Mon
4Tue1:119.31:1910.07:060.47:40-0.37:144:16Waning Gibbous4Tue
5Wed1:569.12:069.47:540.78:240.27:144:17Waning Gibbous5Wed
6Thu2:429.02:558.98:451.09:080.67:144:18Third Quarter6Thu
7Fri3:298.83:478.49:371.29:541.17:144:19Third Quarter7Fri
8Sat4:168.74:417.910:311.410:421.57:144:20Third Quarter8Sat
9Sun5:068.65:387.611:271.511:331.87:134:21Third Quarter9Sun
10Mon5:588.66:387.512:271.47:134:23Waning Crescent10Mon
11Tue6:528.67:367.512:281.91:251.27:134:24Waning Crescent11Tue
12Wed7:448.98:287.71:231.92:170.97:134:25Waning Crescent12Wed
13Thu8:329.29:158.02:141.73:030.67:124:26Waning Crescent13Thu
14Fri9:169.59:588.32:591.43:450.27:124:27New Moon14Fri
15Sat9:599.910:398.63:421.04:25-0.27:114:28New Moon15Sat
16Sun10:4010.211:188.94:240.75:04-0.57:114:30New Moon16Sun
17Mon11:2210.511:589.35:070.35:43-0.87:104:31New Moon17Mon
18Tue12:0410.65:500.06:23-1.07:104:32Waxing Crescent18Tue
19Wed12:389.612:4710.56:35-0.27:05-1.07:094:33Waxing Crescent19Wed
20Thu1:209.91:3410.37:23-0.37:49-0.97:084:35Waxing Crescent20Thu
21Fri2:0510.02:259.98:14-0.38:37-0.67:084:36First Quarter21Fri
22Sat2:5510.13:219.49:10-0.29:29-0.27:074:37First Quarter22Sat
23Sun3:4910.04:238.910:10-0.110:260.37:064:38First Quarter23Sun
24Mon4:489.95:308.511:150.011:280.77:054:40First Quarter24Mon
25Tue5:529.86:418.312:250.17:044:41Waxing Gibbous25Tue
26Wed7:009.97:508.412:350.91:35-0.17:044:42Waxing Gibbous26Wed
27Thu8:0510.08:528.61:430.82:38-0.37:034:44Waxing Gibbous27Thu
28Fri9:0410.29:478.92:450.63:34-0.67:024:45Full Moon28Fri
29Sat9:5710.410:379.13:400.44:24-0.87:014:46Full Moon29Sat
30Sun10:4710.411:239.34:300.25:10-0.87:004:48Full Moon30Sun
31Mon11:3210.35:170.15:52-0.76:594:49Full Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418150)

Common Questions About Portland, ME Tides

Show All
What time does the tide turn (slack tide) in Portland, ME today?

Slack tide in Portland, ME is approximately 7:39 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 96% 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 Full Moon (96% 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