Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Portland, ME.
Next low tide (tomorrow) : 5:20 am (-1.1 ft)
Next high tide : in 3h 28m at 10:48 pm (11.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:11 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Oct 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:558.26:119.711:501.46:386:23First Quarter1Thu
2Fri7:058.47:229.812:450.51:001.36:396:21Waxing Gibbous2Fri
3Sat8:138.88:3010.11:540.32:100.96:406:19Waxing Gibbous3Sat
4Sun9:139.49:3110.42:56-0.13:140.36:416:17Waxing Gibbous4Sun
5Mon10:0610.010:2710.63:51-0.44:11-0.36:426:16Full Moon5Mon
6Tue10:5510.511:1910.64:40-0.65:04-0.76:436:14Full Moon6Tue
7Wed11:4110.85:27-0.65:54-1.06:456:12Full Moon7Wed
8Thu12:0910.512:2610.96:12-0.56:42-1.06:466:10Full Moon8Thu
9Fri12:5710.21:0910.76:56-0.17:29-0.86:476:09Waning Gibbous9Fri
10Sat1:449.71:5210.47:400.48:16-0.46:486:07Waning Gibbous10Sat
11Sun2:319.22:379.98:250.99:040.16:496:05Waning Gibbous11Sun
12Mon3:218.73:269.59:121.49:570.66:516:03Waning Gibbous12Mon
13Tue4:158.24:219.010:051.910:531.16:526:02Third Quarter13Tue
14Wed5:137.95:208.711:022.211:531.46:536:00Third Quarter14Wed
15Thu6:127.76:208.512:022.36:545:58Third Quarter15Thu
16Fri7:107.87:208.512:531.51:042.36:565:57Third Quarter16Fri
17Sat8:058.08:168.71:501.42:032.06:575:55Waning Crescent17Sat
18Sun8:538.49:068.92:401.22:551.66:585:53Waning Crescent18Sun
19Mon9:358.89:509.13:221.03:391.16:595:52Waning Crescent19Mon
20Tue10:129.210:309.33:590.84:190.77:015:50Waning Crescent20Tue
21Wed10:479.711:099.44:340.64:570.37:025:49New Moon21Wed
22Thu11:2110.011:489.55:080.55:35-0.17:035:47New Moon22Thu
23Fri11:5610.35:440.46:14-0.47:045:45New Moon23Fri
24Sat12:289.412:3310.56:220.46:55-0.57:065:44Waxing Crescent24Sat
25Sun1:099.312:1310.56:030.56:39-0.56:074:42Waxing Crescent25Sun
26Mon12:539.212:5810.46:470.77:27-0.46:084:41Waxing Crescent26Mon
27Tue1:428.91:4910.37:360.98:21-0.16:094:39Waxing Crescent27Tue
28Wed2:388.72:4710.08:321.19:210.16:114:38First Quarter28Wed
29Thu3:418.53:539.89:351.310:260.36:124:37First Quarter29Thu
30Fri4:488.55:039.610:431.311:320.36:134:35First Quarter30Fri
31Sat5:558.86:139.611:541.16:154:34Waxing Gibbous31Sat
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 2:04 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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