Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Portland, ME.
Next low tide (tomorrow) : 7:58 am (-1.1 ft)
Next high tide (tomorrow) : in 5h 25m at 1:35 am (11.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Jan 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:239.811:598.75:100.95:46-0.17:144:14Full Moon1Sat
2Sun11:599.75:470.96:200.07:144:15Waning Gibbous2Sun
3Mon12:348.712:349.66:231.06:530.17:144:16Waning Gibbous3Mon
4Tue1:088.71:109.37:001.07:270.27:144:17Waning Gibbous4Tue
5Wed1:438.71:489.17:391.08:030.47:144:18Waning Gibbous5Wed
6Thu2:208.82:298.88:211.18:430.67:144:19Waning Gibbous6Thu
7Fri3:008.83:168.59:081.19:260.77:134:20Third Quarter7Fri
8Sat3:448.94:078.39:581.010:140.97:134:21Third Quarter8Sat
9Sun4:339.15:048.110:540.911:071.07:134:22Third Quarter9Sun
10Mon5:279.36:068.111:540.67:134:23Waning Crescent10Mon
11Tue6:269.77:118.312:050.912:570.27:124:25Waning Crescent11Tue
12Wed7:2810.18:138.71:070.71:59-0.37:124:26Waning Crescent12Wed
13Thu8:2710.79:119.22:070.32:57-0.97:114:27Waning Crescent13Thu
14Fri9:2311.210:069.73:05-0.23:51-1.47:114:28New Moon14Fri
15Sat10:1911.510:5910.14:01-0.74:44-1.87:104:29New Moon15Sat
16Sun11:1311.711:5110.54:56-1.05:36-2.07:104:31New Moon16Sun
17Mon12:0611.65:50-1.26:26-2.07:094:32Waxing Crescent17Mon
18Tue12:4210.612:5911.36:44-1.17:16-1.77:094:33Waxing Crescent18Tue
19Wed1:3310.61:5310.77:38-0.98:07-1.27:084:34Waxing Crescent19Wed
20Thu2:2610.42:5010.08:36-0.69:00-0.57:074:36First Quarter20Thu
21Fri3:2110.13:509.39:36-0.29:550.17:074:37First Quarter21Fri
22Sat4:189.74:518.710:380.210:530.77:064:38First Quarter22Sat
23Sun5:169.45:568.211:420.511:541.27:054:39First Quarter23Sun
24Mon6:179.27:008.012:480.67:044:41Waxing Gibbous24Mon
25Tue7:179.18:008.012:571.41:500.67:034:42Waxing Gibbous25Tue
26Wed8:129.28:528.11:561.42:430.57:034:43Waxing Gibbous26Wed
27Thu9:019.39:388.32:471.33:300.37:024:45Waxing Gibbous27Thu
28Fri9:459.510:208.53:321.14:110.17:014:46Full Moon28Fri
29Sat10:259.610:588.74:120.94:470.07:004:47Full Moon29Sat
30Sun11:039.711:338.84:490.75:21-0.16:594:49Full Moon30Sun
31Mon11:389.75:250.65:52-0.16:584:50Full Moon31Mon
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 4:46 am — 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 7% 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 Crescent (7% 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