Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Portland, ME.
Next low tide : 9:38 pm (1.2 ft)
Next high tide : in 6h 13m at 3:39 pm (9.0 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Apr 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:319.811:479.85:19-0.25:360.05:226:07Full Moon1Thu
2Fri12:099.65:57-0.26:100.35:206:08Full Moon2Fri
3Sat12:219.812:469.36:33-0.16:440.65:196:09Waning Gibbous3Sat
4Sun12:559.62:239.08:090.18:190.96:177:10Waning Gibbous4Sun
5Mon2:309.43:038.68:470.48:571.26:157:11Waning Gibbous5Mon
6Tue3:089.23:468.39:290.69:391.56:137:13Waning Gibbous6Tue
7Wed3:518.94:348.010:140.910:261.76:127:14Third Quarter7Wed
8Thu4:408.75:267.911:041.111:181.96:107:15Third Quarter8Thu
9Fri5:338.66:227.911:581.26:087:16Third Quarter9Fri
10Sat6:318.67:208.112:141.912:561.16:067:17Third Quarter10Sat
11Sun7:318.98:168.51:141.71:540.86:057:19Waning Crescent11Sun
12Mon8:309.39:079.12:141.22:480.46:037:20Waning Crescent12Mon
13Tue9:249.89:549.83:090.53:38-0.26:017:21Waning Crescent13Tue
14Wed10:1510.210:4010.54:01-0.24:25-0.66:007:22New Moon14Wed
15Thu11:0410.611:2611.14:50-0.95:11-1.05:587:23New Moon15Thu
16Fri11:5410.95:39-1.55:59-1.25:567:24New Moon16Fri
17Sat12:1311.512:4510.96:29-1.86:47-1.25:557:26New Moon17Sat
18Sun1:0111.71:3610.87:20-2.07:36-1.05:537:27Waxing Crescent18Sun
19Mon1:5011.62:2910.48:12-1.88:29-0.65:517:28Waxing Crescent19Mon
20Tue2:4311.33:2710.09:08-1.49:25-0.15:507:29Waxing Crescent20Tue
21Wed3:4110.84:309.610:08-0.910:260.45:487:30First Quarter21Wed
22Thu4:4510.25:359.211:12-0.411:330.85:467:32First Quarter22Thu
23Fri5:519.86:419.012:180.05:457:33First Quarter23Fri
24Sat7:009.57:479.112:421.01:250.25:437:34Waxing Gibbous24Sat
25Sun8:079.48:469.21:521.02:280.35:427:35Waxing Gibbous25Sun
26Mon9:079.49:389.52:550.83:230.35:407:36Waxing Gibbous26Mon
27Tue9:599.410:249.73:490.54:100.35:397:38Waxing Gibbous27Tue
28Wed10:469.411:059.84:360.24:520.45:377:39Full Moon28Wed
29Thu11:299.411:429.95:190.15:310.55:367:40Full Moon29Thu
30Fri12:099.35:580.06:060.65:347:41Full Moon30Fri
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 6:38 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 (72% illuminated). This places Portland, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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