Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 45m at 7:18 pm (-0.2 ft)
Next high tide (tomorrow) : 1:35 am (11.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Jan 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:288.57:017.712:041.612:521.57:144:14Waxing Gibbous1Tue
2Wed7:188.77:557.812:561.71:461.17:144:15Waxing Gibbous2Wed
3Thu8:049.08:447.91:451.72:330.87:144:16Waxing Gibbous3Thu
4Fri8:489.39:308.12:311.53:170.47:144:17Waxing Gibbous4Fri
5Sat9:309.710:138.43:141.33:590.07:144:18Full Moon5Sat
6Sun10:1210.010:558.63:561.04:40-0.37:144:19Full Moon6Sun
7Mon10:5510.311:378.84:390.75:22-0.67:144:20Full Moon7Mon
8Tue11:3810.55:230.56:04-0.87:134:21Full Moon8Tue
9Wed12:199.112:2310.66:080.36:48-1.07:134:22Waning Gibbous9Wed
10Thu1:029.31:1010.66:560.17:33-0.97:134:23Waning Gibbous10Thu
11Fri1:499.42:0010.37:470.18:21-0.87:134:25Waning Gibbous11Fri
12Sat2:399.62:559.98:420.19:13-0.57:124:26Third Quarter12Sat
13Sun3:339.73:559.59:410.110:07-0.27:124:27Third Quarter13Sun
14Mon4:299.84:589.110:440.111:040.27:114:28Third Quarter14Mon
15Tue5:289.86:058.711:500.17:114:29Third Quarter15Tue
16Wed6:299.97:148.612:060.512:59-0.17:104:31Waning Crescent16Wed
17Thu7:3110.08:188.61:100.72:03-0.37:104:32Waning Crescent17Thu
18Fri8:3010.29:168.82:110.73:02-0.57:094:33Waning Crescent18Fri
19Sat9:2510.310:098.93:080.63:55-0.77:084:34New Moon19Sat
20Sun10:1610.410:599.04:000.54:45-0.77:084:36New Moon20Sun
21Mon11:0410.411:449.04:490.45:30-0.77:074:37New Moon21Mon
22Tue11:4910.25:340.46:13-0.57:064:38New Moon22Tue
23Wed12:269.012:3110.06:180.56:53-0.37:054:39Waxing Crescent23Wed
24Thu1:068.91:129.67:000.77:310.07:054:41Waxing Crescent24Thu
25Fri1:458.81:539.27:420.98:090.47:044:42Waxing Crescent25Fri
26Sat2:268.72:378.78:271.18:490.87:034:43Waxing Crescent26Sat
27Sun3:078.63:248.29:141.39:311.17:024:45First Quarter27Sun
28Mon3:518.54:157.810:041.410:151.57:014:46First Quarter28Mon
29Tue4:388.45:107.510:571.511:041.87:004:48First Quarter29Tue
30Wed5:288.46:097.311:541.511:582.06:594:49First Quarter30Wed
31Thu6:238.57:107.412:551.36:584:50Waxing Gibbous31Thu
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 10:26 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 7% 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 Waxing Crescent (7% 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