Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Portland, ME.
Next low tide : 8:52 pm (1.3 ft)
Next high tide : in 3h 09m at 3:00 pm (8.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Oct 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:0310.02:1710.28:040.18:35-0.26:396:21Waxing Crescent1Sun
2Mon2:519.43:039.88:490.79:240.26:406:20Waxing Crescent2Mon
3Tue3:418.93:519.49:371.210:160.76:416:18First Quarter3Tue
4Wed4:348.44:449.010:281.611:111.16:426:16First Quarter4Wed
5Thu5:318.15:418.711:232.06:436:14First Quarter5Thu
6Fri6:288.06:398.612:091.312:222.16:446:12First Quarter6Fri
7Sat7:268.07:388.71:081.41:222.06:466:11Waxing Gibbous7Sat
8Sun8:218.28:338.92:051.32:191.86:476:09Waxing Gibbous8Sun
9Mon9:098.59:219.22:551.03:091.46:486:07Waxing Gibbous9Mon
10Tue9:528.910:049.43:380.83:521.06:496:05Waxing Gibbous10Tue
11Wed10:309.310:459.74:160.54:320.56:506:04Full Moon11Wed
12Thu11:069.711:259.94:520.25:110.16:526:02Full Moon12Thu
13Fri11:4210.15:290.05:51-0.36:536:00Full Moon13Fri
14Sat12:0410.012:1910.46:06-0.16:31-0.56:545:59Full Moon14Sat
15Sun12:4510.012:5710.66:45-0.17:14-0.76:555:57Waning Gibbous15Sun
16Mon1:279.91:3910.77:270.07:59-0.76:575:55Waning Gibbous16Mon
17Tue2:139.72:2410.68:130.18:49-0.66:585:54Waning Gibbous17Tue
18Wed3:049.53:1610.49:030.49:44-0.46:595:52Third Quarter18Wed
19Thu4:029.24:1510.210:000.710:45-0.27:005:50Third Quarter19Thu
20Fri5:059.05:2110.011:020.911:490.07:025:49Third Quarter20Fri
21Sat6:129.06:309.912:090.97:035:47Third Quarter21Sat
22Sun7:199.17:399.912:560.11:200.87:045:46Waning Crescent22Sun
23Mon8:239.58:4410.12:030.02:270.47:055:44Waning Crescent23Mon
24Tue9:209.99:4210.23:03-0.23:280.07:075:43Waning Crescent24Tue
25Wed10:1110.310:3510.33:56-0.44:21-0.47:085:41New Moon25Wed
26Thu10:5810.611:2510.34:44-0.45:11-0.77:095:40New Moon26Thu
27Fri11:4210.75:29-0.35:58-0.87:105:38New Moon27Fri
28Sat12:1210.112:2510.66:12-0.16:42-0.77:125:37New Moon28Sat
29Sun12:579.812:0510.45:540.26:25-0.56:134:35Waxing Crescent29Sun
30Mon12:409.512:4610.16:350.67:08-0.16:144:34Waxing Crescent30Mon
31Tue1:249.11:279.77:161.17:520.36:164:33Waxing Crescent31Tue
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 5:56 pm — 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 81% 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 (81% 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