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 3h 03m 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 - Dec 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:528.81:569.67:461.08:200.16:544:05Waning Gibbous1Mon
2Tue2:378.92:469.58:361.09:090.16:554:05Third Quarter2Tue
3Wed3:289.03:419.49:300.910:010.16:564:05Third Quarter3Wed
4Thu4:229.34:419.310:290.710:560.16:574:04Third Quarter4Thu
5Fri5:189.65:449.311:310.411:550.16:584:04Third Quarter5Fri
6Sat6:1710.06:499.412:350.06:594:04Waning Crescent6Sat
7Sun7:1610.57:529.712:55-0.11:38-0.67:004:04Waning Crescent7Sun
8Mon8:1311.08:519.91:54-0.32:37-1.17:014:04Waning Crescent8Mon
9Tue9:0711.49:4710.22:50-0.53:32-1.57:024:04New Moon9Tue
10Wed10:0111.610:4110.33:44-0.74:26-1.87:034:04New Moon10Wed
11Thu10:5311.711:3410.34:37-0.75:18-1.87:044:04New Moon11Thu
12Fri11:4511.55:29-0.76:09-1.77:054:04Waxing Crescent12Fri
13Sat12:2610.112:3611.26:21-0.46:59-1.37:054:04Waxing Crescent13Sat
14Sun1:179.91:2710.67:13-0.17:50-0.87:064:04Waxing Crescent14Sun
15Mon2:099.62:2110.08:070.38:42-0.37:074:04Waxing Crescent15Mon
16Tue3:029.33:169.49:030.79:350.27:084:05First Quarter16Tue
17Wed3:579.14:148.910:021.010:280.77:084:05First Quarter17Wed
18Thu4:518.95:128.511:011.211:221.07:094:05First Quarter18Thu
19Fri5:448.96:108.212:021.37:104:06First Quarter19Fri
20Sat6:388.97:088.112:161.31:011.27:104:06Waxing Gibbous20Sat
21Sun7:299.08:028.11:101.41:550.97:114:06Waxing Gibbous21Sun
22Mon8:169.28:508.32:001.42:420.77:114:07Waxing Gibbous22Mon
23Tue8:599.49:348.42:441.33:250.47:124:07Waxing Gibbous23Tue
24Wed9:409.710:168.63:251.14:040.17:124:08Full Moon24Wed
25Thu10:199.810:558.84:031.04:41-0.17:124:09Full Moon25Thu
26Fri10:5610.011:338.94:410.85:18-0.37:134:09Full Moon26Fri
27Sat11:3410.15:200.65:54-0.47:134:10Full Moon27Sat
28Sun12:109.012:1210.25:590.56:32-0.57:134:11Waning Gibbous28Sun
29Mon12:489.212:5210.16:410.47:13-0.67:144:11Waning Gibbous29Mon
30Tue1:289.31:3610.07:260.37:56-0.57:144:12Waning Gibbous30Tue
31Wed2:139.42:259.88:150.38:45-0.47:144:13Third Quarter31Wed
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 5:41 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