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 2h 43m 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 - Jan 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:5111.310:3210.03:33-0.54:17-1.67:144:14Full Moon1Fri
2Sat10:4311.411:2510.04:27-0.55:09-1.77:144:15Full Moon2Sat
3Sun11:3511.35:19-0.55:59-1.67:144:16Full Moon3Sun
4Mon12:159.912:2511.06:09-0.36:48-1.37:144:17Waning Gibbous4Mon
5Tue1:049.71:1410.57:000.07:36-0.97:144:18Waning Gibbous5Tue
6Wed1:549.52:0410.07:510.38:25-0.47:144:19Waning Gibbous6Wed
7Thu2:449.22:579.48:440.79:150.27:144:20Third Quarter7Thu
8Fri3:369.03:528.89:401.010:060.67:134:21Third Quarter8Fri
9Sat4:278.84:488.410:371.210:571.07:134:22Third Quarter9Sat
10Sun5:208.75:468.011:361.311:501.37:134:23Third Quarter10Sun
11Mon6:138.76:457.912:361.37:134:24Waning Crescent11Mon
12Tue7:068.87:417.912:451.51:331.17:124:25Waning Crescent12Tue
13Wed7:569.08:328.11:381.52:230.87:124:26Waning Crescent13Wed
14Thu8:419.29:188.32:251.33:070.57:114:28Waning Crescent14Thu
15Fri9:239.510:008.53:081.13:480.27:114:29Waning Crescent15Fri
16Sat10:039.810:408.73:480.94:26-0.17:104:30New Moon16Sat
17Sun10:4210.011:198.94:270.75:04-0.47:104:31New Moon17Sun
18Mon11:2110.211:579.15:060.45:41-0.67:094:33New Moon18Mon
19Tue12:0010.35:470.26:20-0.87:094:34Waxing Crescent19Tue
20Wed12:359.312:4110.46:290.17:00-0.87:084:35Waxing Crescent20Wed
21Thu1:159.51:2510.37:140.07:43-0.87:074:36Waxing Crescent21Thu
22Fri1:599.62:1310.08:02-0.18:30-0.67:064:38Waxing Crescent22Fri
23Sat2:479.73:079.78:560.09:21-0.47:064:39First Quarter23Sat
24Sun3:409.84:069.39:540.010:16-0.17:054:40First Quarter24Sun
25Mon4:389.85:109.010:560.011:160.17:044:42First Quarter25Mon
26Tue5:399.96:188.912:03-0.17:034:43Waxing Gibbous26Tue
27Wed6:4410.17:278.912:200.31:11-0.37:024:44Waxing Gibbous27Wed
28Thu7:4710.38:319.11:250.32:16-0.67:014:46Waxing Gibbous28Thu
29Fri8:4610.69:289.42:270.13:14-1.07:004:47Waxing Gibbous29Fri
30Sat9:4110.810:219.63:24-0.14:07-1.26:594:48Full Moon30Sat
31Sun10:3310.911:119.74:17-0.34:57-1.36:584:50Full Moon31Sun
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