Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 2h 23m at 2:59 pm (2.0 ft)
Next high tide : 9:16 pm (9.2 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:23 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - May 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:439.84:308.810:090.210:251.45:337:42Third Quarter1Thu
2Fri4:399.25:268.511:040.611:231.65:327:43Third Quarter2Fri
3Sat5:368.86:218.412:001.05:307:44Third Quarter3Sat
4Sun6:358.57:168.512:231.812:551.25:297:46Third Quarter4Sun
5Mon7:338.48:088.71:241.71:491.35:287:47Waning Crescent5Mon
6Tue8:298.48:569.02:211.52:391.35:267:48Waning Crescent6Tue
7Wed9:198.59:399.33:121.23:231.25:257:49Waning Crescent7Wed
8Thu10:058.710:189.53:560.84:031.15:247:50Waning Crescent8Thu
9Fri10:478.810:559.84:360.54:401.05:237:51New Moon9Fri
10Sat11:288.911:3210.05:140.25:170.95:217:52New Moon10Sat
11Sun12:079.05:52-0.15:550.85:207:54New Moon11Sun
12Mon12:0910.212:469.16:30-0.36:340.75:197:55New Moon12Mon
13Tue12:4710.31:269.17:10-0.47:160.75:187:56Waxing Crescent13Tue
14Wed1:2710.42:089.17:53-0.58:000.75:177:57Waxing Crescent14Wed
15Thu2:1210.42:559.28:38-0.58:490.75:167:58Waxing Crescent15Thu
16Fri3:0110.33:469.29:28-0.49:430.75:157:59Waxing Crescent16Fri
17Sat3:5510.14:429.310:21-0.310:420.75:138:00First Quarter17Sat
18Sun4:559.95:409.511:17-0.211:450.65:128:01First Quarter18Sun
19Mon5:589.76:409.812:16-0.15:128:02First Quarter19Mon
20Tue7:049.67:4010.212:500.41:160.05:118:03Waxing Gibbous20Tue
21Wed8:109.68:3910.51:560.02:170.05:108:04Waxing Gibbous21Wed
22Thu9:139.79:3410.92:59-0.43:15-0.15:098:05Waxing Gibbous22Thu
23Fri10:109.810:2511.13:57-0.84:08-0.15:088:06Full Moon23Fri
24Sat11:059.911:1611.24:50-1.15:00-0.15:078:07Full Moon24Sat
25Sun11:579.85:42-1.25:500.05:068:08Full Moon25Sun
26Mon12:0511.112:479.76:31-1.16:380.25:068:09Full Moon26Mon
27Tue12:5210.91:349.57:18-0.97:260.55:058:10Waning Gibbous27Tue
28Wed1:3910.62:219.38:04-0.68:130.85:048:11Waning Gibbous28Wed
29Thu2:2510.23:099.18:51-0.29:011.15:048:12Waning Gibbous29Thu
30Fri3:139.73:588.99:370.29:521.45:038:13Waning Gibbous30Fri
31Sat4:039.24:478.710:250.610:451.65:028:14Third Quarter31Sat
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 6:07 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 86% 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 Waxing Gibbous (86% 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