Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Portland, ME.
Next low tide (tomorrow) : 8:48 am (0.1 ft)
Next high tide (tomorrow) : in 5h 29m at 2:35 am (9.6 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Feb 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:109.79:468.72:520.93:33-0.16:564:52Waning Crescent1Sat
2Sun9:5310.210:289.23:370.44:14-0.66:554:53New Moon2Sun
3Mon10:3710.511:099.74:21-0.14:55-1.06:544:54New Moon3Mon
4Tue11:2010.811:5010.15:06-0.55:36-1.26:534:56New Moon4Tue
5Wed12:0510.85:51-0.86:19-1.46:524:57Waxing Crescent5Wed
6Thu12:3310.412:5110.76:38-1.07:03-1.36:504:59Waxing Crescent6Thu
7Fri1:1810.61:4010.47:28-1.07:50-1.06:495:00Waxing Crescent7Fri
8Sat2:0610.62:349.98:21-0.98:41-0.66:485:01First Quarter8Sat
9Sun3:0010.43:339.49:19-0.69:38-0.26:465:03First Quarter9Sun
10Mon3:5910.24:388.910:22-0.310:380.36:455:04First Quarter10Mon
11Tue5:029.95:478.611:290.011:450.66:445:05First Quarter11Tue
12Wed6:109.86:598.512:410.06:425:07Waxing Gibbous12Wed
13Thu7:199.88:048.712:560.71:49-0.16:415:08Waxing Gibbous13Thu
14Fri8:2210.09:029.02:020.62:48-0.46:405:09Waxing Gibbous14Fri
15Sat9:1710.19:529.33:000.33:40-0.66:385:11Full Moon15Sat
16Sun10:0710.210:389.53:510.14:26-0.66:375:12Full Moon16Sun
17Mon10:5210.211:209.64:38-0.15:08-0.66:355:13Full Moon17Mon
18Tue11:3410.111:599.75:21-0.25:47-0.56:345:15Full Moon18Tue
19Wed12:149.86:02-0.16:23-0.36:325:16Waning Gibbous19Wed
20Thu12:359.612:529.56:400.06:570.16:315:17Waning Gibbous20Thu
21Fri1:109.51:309.17:180.27:330.46:295:19Waning Gibbous21Fri
22Sat1:469.32:108.77:580.48:110.86:275:20Waning Gibbous22Sat
23Sun2:259.12:548.38:410.78:521.16:265:21Third Quarter23Sun
24Mon3:098.83:427.99:281.09:381.56:245:23Third Quarter24Mon
25Tue3:578.64:367.610:191.210:291.76:235:24Third Quarter25Tue
26Wed4:508.55:347.511:151.311:241.86:215:25Third Quarter26Wed
27Thu5:478.56:357.612:151.36:195:27Waning Crescent27Thu
28Fri6:488.87:327.912:251.71:151.06:185:28Waning Crescent28Fri
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 5:41 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 84% 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 Waning Gibbous (84% 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