Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 3h 01m at 10:27 pm (1.0 ft)
Next high tide (tomorrow) : 4:34 am (9.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:06 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Oct 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:369.92:5110.38:360.29:11-0.36:396:21Waning Gibbous1Tue
2Wed3:289.43:429.89:260.710:050.36:406:20Third Quarter2Wed
3Thu4:238.94:379.410:201.211:020.76:416:18Third Quarter3Thu
4Fri5:208.55:359.011:171.66:426:16Third Quarter4Fri
5Sat6:188.36:348.812:001.012:161.86:436:14Third Quarter5Sat
6Sun7:168.37:328.812:591.21:171.86:446:12Waning Crescent6Sun
7Mon8:108.48:278.91:571.22:151.66:466:11Waning Crescent7Mon
8Tue9:008.79:169.12:471.13:051.36:476:09Waning Crescent8Tue
9Wed9:439.010:009.33:310.93:490.96:486:07Waning Crescent9Wed
10Thu10:229.410:419.44:100.64:290.66:496:05New Moon10Thu
11Fri10:599.711:209.64:460.55:060.26:506:04New Moon11Fri
12Sat11:349.911:589.65:210.35:440.06:526:02New Moon12Sat
13Sun12:0910.15:560.36:21-0.36:536:00New Moon13Sun
14Mon12:369.712:4510.36:330.27:01-0.46:545:59Waxing Crescent14Mon
15Tue1:159.61:2410.47:130.27:43-0.46:555:57Waxing Crescent15Tue
16Wed1:579.52:0610.47:550.38:28-0.46:575:55Waxing Crescent16Wed
17Thu2:439.42:5410.38:420.49:19-0.36:585:54Waxing Crescent17Thu
18Fri3:359.23:4910.19:350.610:15-0.16:595:52First Quarter18Fri
19Sat4:349.14:5010.010:340.711:160.07:005:50First Quarter19Sat
20Sun5:379.15:559.911:380.77:025:49First Quarter20Sun
21Mon6:429.37:039.912:190.012:450.67:035:47Waxing Gibbous21Mon
22Tue7:469.68:1010.01:240.01:530.37:045:46Waxing Gibbous22Tue
23Wed8:4610.19:1210.32:27-0.22:56-0.27:055:44Waxing Gibbous23Wed
24Thu9:4110.510:0810.43:23-0.53:54-0.77:075:43Waxing Gibbous24Thu
25Fri10:3110.911:0110.54:15-0.64:46-1.07:085:41Full Moon25Fri
26Sat11:1911.111:5110.45:04-0.65:36-1.27:095:40Full Moon26Sat
27Sun11:0611.111:3910.24:51-0.55:24-1.26:104:38Full Moon27Sun
28Mon11:5110.95:37-0.26:10-1.06:124:37Waning Gibbous28Mon
29Tue12:269.912:3510.66:220.26:56-0.66:134:35Waning Gibbous29Tue
30Wed1:129.51:2010.17:070.67:42-0.16:144:34Waning Gibbous30Wed
31Thu1:599.12:079.77:531.08:310.36:164:33Waning 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 1:30 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 62% 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 Third Quarter (62% 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