Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Portland, ME.
Next low tide : 11:53 pm (0.4 ft)
Next high tide : in 37m at 5:26 pm (10.0 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:35 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Jan 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:3510.05:210.86:00-0.27:144:14Full Moon1Thu
2Fri12:138.712:149.86:010.96:38-0.17:144:15Waning Gibbous2Fri
3Sat12:518.712:539.56:411.07:140.27:144:16Waning Gibbous3Sat
4Sun1:288.61:319.27:211.17:500.47:144:17Waning Gibbous4Sun
5Mon2:068.62:128.88:021.38:280.77:144:18Waning Gibbous5Mon
6Tue2:468.52:568.48:471.49:081.07:144:19Third Quarter6Tue
7Wed3:288.53:458.19:351.59:511.27:144:20Third Quarter7Wed
8Thu4:128.54:367.810:261.510:371.57:144:21Third Quarter8Thu
9Fri5:008.65:327.611:201.411:281.67:134:22Third Quarter9Fri
10Sat5:518.76:337.612:191.27:134:23Waning Crescent10Sat
11Sun6:469.07:337.712:231.61:180.87:134:24Waning Crescent11Sun
12Mon7:429.58:288.11:211.42:140.37:124:26Waning Crescent12Mon
13Tue8:3510.09:208.52:161.03:06-0.27:124:27Waning Crescent13Tue
14Wed9:2610.510:109.03:080.53:56-0.87:114:28New Moon14Wed
15Thu10:1711.010:599.54:000.04:44-1.37:114:29New Moon15Thu
16Fri11:0811.311:479.94:51-0.45:33-1.67:104:30New Moon16Fri
17Sat11:5911.45:43-0.76:20-1.77:104:32Waxing Crescent17Sat
18Sun12:3610.212:5011.26:35-0.97:08-1.67:094:33Waxing Crescent18Sun
19Mon1:2510.41:4310.87:29-0.97:58-1.37:094:34Waxing Crescent19Mon
20Tue2:1610.42:3910.28:25-0.78:50-0.87:084:35First Quarter20Tue
21Wed3:1110.33:399.59:25-0.49:46-0.27:074:37First Quarter21Wed
22Thu4:0810.14:438.910:28-0.110:440.47:074:38First Quarter22Thu
23Fri5:089.85:508.411:350.111:470.97:064:39First Quarter23Fri
24Sat6:129.66:598.212:440.37:054:41Waxing Gibbous24Sat
25Sun7:169.58:048.112:541.21:500.37:044:42Waxing Gibbous25Sun
26Mon8:169.59:008.21:571.22:480.17:034:43Waxing Gibbous26Mon
27Tue9:099.69:498.42:531.13:380.07:024:45Waxing Gibbous27Tue
28Wed9:569.710:338.63:411.04:23-0.17:014:46Full Moon28Wed
29Thu10:399.811:138.74:250.85:03-0.17:004:47Full Moon29Thu
30Fri11:189.711:498.85:050.75:39-0.16:594:49Full Moon30Fri
31Sat11:549.65:420.76:110.06:584:50Full Moon31Sat
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 8:39 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 neap phase. Tonight's moon is 44% 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 minimum.

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 Third Quarter (44% illuminated). This places Portland, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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