Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

50°
H 53°
L 36°
SSW
8mph
High tide
5:22 pm
Photo Credits

Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Sunday, October 18, 2026
The tide is currently rising in Portland, ME.
Next low tide : 11:52 pm (1.6 ft)
Next high tide : in 4h 48m at 5:22 pm (8.5 ft)
Sunset today : 5:53 pm
Sunrise tomorrow : 6:59 am
Moon phase : First Quarter (50% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Featured Local Businesses

Casco Bay Boat Transport

Casco Bay Boat Transport
Sunset, calm water and the islands on the Maine Island Trail

Maine Island Trail Association (MITA)
Yarmouth Boat Yard is an authorized Pursuit Boats dealer

Yarmouth Boat Yard
Freedom Boat Club at Yarmouth Boat Yard, Maine

Freedom Boat Club of Maine
Hamilton Marine - Portland

Hamilton Marine - Portland
Maine Yacht Center docks, Portland, Maine

Maine Yacht Center

USCG Station South Portland, ME

Portland, ME Tides - Dec 1816

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:359.29:028.62:211.22:550.76:594:09Waxing Gibbous1Sun
2Mon9:149.59:448.63:001.13:340.47:004:09Waxing Gibbous2Mon
3Tue9:509.710:248.73:361.14:120.27:014:09Full Moon3Tue
4Wed10:269.811:038.74:121.04:490.07:024:08Full Moon4Wed
5Thu11:029.911:418.74:491.05:26-0.17:034:08Full Moon5Thu
6Fri11:3910.05:271.06:05-0.27:044:08Full Moon6Fri
7Sat12:208.712:1810.06:071.06:45-0.27:054:08Waning Gibbous7Sat
8Sun1:018.61:0110.06:501.07:30-0.27:064:08Waning Gibbous8Sun
9Mon1:458.61:489.97:371.08:18-0.17:074:08Waning Gibbous9Mon
10Tue2:368.72:429.78:301.19:110.07:084:08Third Quarter10Tue
11Wed3:318.83:419.69:281.010:060.07:084:08Third Quarter11Wed
12Thu4:289.04:449.410:310.911:040.17:094:08Third Quarter12Thu
13Fri5:279.45:509.311:360.67:104:08Third Quarter13Fri
14Sat6:279.86:569.312:030.112:420.27:114:08Waning Crescent14Sat
15Sun7:2510.38:009.51:030.01:46-0.47:124:09Waning Crescent15Sun
16Mon8:2010.78:589.62:01-0.12:44-0.97:124:09Waning Crescent16Mon
17Tue9:1211.09:539.72:55-0.23:38-1.37:134:09New Moon17Tue
18Wed10:0311.210:459.73:47-0.24:30-1.47:144:10New Moon18Wed
19Thu10:5211.211:369.64:37-0.15:20-1.47:144:10New Moon19Thu
20Fri11:4111.05:270.06:09-1.27:154:10Waxing Crescent20Fri
21Sat12:259.412:2910.76:150.36:56-0.97:154:11Waxing Crescent21Sat
22Sun1:139.21:1710.27:030.67:44-0.47:164:11Waxing Crescent22Sun
23Mon2:018.92:069.77:530.98:320.07:164:12Waxing Crescent23Mon
24Tue2:518.72:579.28:451.29:210.57:174:13First Quarter24Tue
25Wed3:428.53:518.79:391.510:100.97:174:13First Quarter25Wed
26Thu4:328.44:468.310:351.610:591.27:174:14First Quarter26Thu
27Fri5:238.45:428.011:331.611:501.47:184:15First Quarter27Fri
28Sat6:138.56:407.912:311.57:184:15Waxing Gibbous28Sat
29Sun7:038.77:357.912:411.51:271.37:184:16Waxing Gibbous29Sun
30Mon7:518.98:268.01:311.52:160.97:184:17Waxing Gibbous30Mon
31Tue8:349.29:148.12:171.53:010.67:184:18Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418150)

www.USHarbors.com

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
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Common Questions About Portland, ME Tides

Collapse All
Is this week a spring tide or neap tide in Portland, ME?

Portland, ME is currently in a neap phase. Tonight's moon is 50% 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 First Quarter (50% 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

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