Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Portland, ME.
Next low tide (tomorrow) : in 4h 39m at 2:04 am (1.2 ft)
Next high tide (tomorrow) : 8:13 am (7.8 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Apr 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:1710.810:4610.84:01-0.84:31-1.26:207:08Full Moon1Fri
2Sat11:1211.011:3711.24:55-1.35:21-1.46:187:09Full Moon2Sat
3Sun12:0411.15:48-1.66:10-1.36:167:11Full Moon3Sun
4Mon12:2511.312:5510.96:39-1.76:58-1.16:157:12Full Moon4Mon
5Tue1:1211.31:4410.57:28-1.67:45-0.76:137:13Waning Gibbous5Tue
6Wed1:5911.02:3410.08:17-1.28:33-0.16:117:14Waning Gibbous6Wed
7Thu2:4710.53:269.59:08-0.79:230.56:097:15Waning Gibbous7Thu
8Fri3:389.94:218.910:02-0.110:171.06:087:17Third Quarter8Fri
9Sat4:329.45:198.510:580.411:151.56:067:18Third Quarter9Sat
10Sun5:309.06:178.311:570.86:047:19Third Quarter10Sun
11Mon6:308.77:178.212:151.712:571.16:027:20Third Quarter11Mon
12Tue7:318.68:138.31:181.81:571.16:017:21Waning Crescent12Tue
13Wed8:298.69:048.62:191.62:501.05:597:22Waning Crescent13Wed
14Thu9:208.89:488.93:111.33:350.95:577:24Waning Crescent14Thu
15Fri10:059.010:289.33:560.94:150.75:567:25Waning Crescent15Fri
16Sat10:479.211:059.64:360.64:510.55:547:26New Moon16Sat
17Sun11:269.411:409.85:140.25:250.45:527:27New Moon17Sun
18Mon12:049.45:500.06:000.35:517:28New Moon18Mon
19Tue12:1410.012:419.56:26-0.36:360.35:497:30New Moon19Tue
20Wed12:4810.21:199.57:04-0.47:140.35:487:31Waxing Crescent20Wed
21Thu1:2510.31:599.47:44-0.57:550.45:467:32Waxing Crescent21Thu
22Fri2:0510.32:429.38:28-0.58:400.55:447:33Waxing Crescent22Fri
23Sat2:5010.23:329.19:16-0.49:310.65:437:34Waxing Crescent23Sat
24Sun3:4210.14:289.010:10-0.310:270.85:417:36First Quarter24Sun
25Mon4:419.95:299.111:08-0.111:290.85:407:37First Quarter25Mon
26Tue5:459.86:339.212:10-0.15:387:38First Quarter26Tue
27Wed6:529.87:389.512:350.71:14-0.15:377:39Waxing Gibbous27Wed
28Thu8:019.98:3910.01:440.42:18-0.35:357:40Waxing Gibbous28Thu
29Fri9:0410.19:3510.52:49-0.13:16-0.55:347:42Waxing Gibbous29Fri
30Sat10:0310.310:2710.93:48-0.64:10-0.65:337:43Waxing Gibbous30Sat
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 5:08 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 71% 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 Waxing Gibbous (71% 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