Nearby Harbors
43.6537’ N, 70.2487’ W

Portland, ME

49°
H -°
L 38°
NNE
9mph
Low tide
1:40 am
Photo Credits

Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Wednesday, October 21, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 8m at 1:40 am (1.4 ft)
Next high tide : 8:00 am (8.2 ft)
Sunset today : 5:48 pm
Sunrise tomorrow : 7:02 am
Moon phase : Waxing Gibbous (78% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Featured Local Businesses

Freedom Boat Club at Yarmouth Boat Yard, Maine

Freedom Boat Club of Maine
Hamilton Marine - Portland

Hamilton Marine - Portland

USCG Station South Portland, ME
Maine Yacht Center docks, Portland, Maine

Maine Yacht Center
Yarmouth Boat Yard is an authorized Pursuit Boats dealer

Yarmouth Boat Yard
Sunset, calm water and the islands on the Maine Island Trail

Maine Island Trail Association (MITA)
Casco Bay Boat Transport

Casco Bay Boat Transport

Portland, ME Tides - May 2055

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:239.93:048.88:49-0.18:591.05:327:43Waxing Crescent1Sat
2Sun3:089.83:538.79:360.09:501.15:317:44Waxing Crescent2Sun
3Mon4:009.74:488.710:290.110:461.15:307:45First Quarter3Mon
4Tue4:599.75:488.911:260.111:471.05:287:46First Quarter4Tue
5Wed6:029.66:509.212:270.15:277:48First Quarter5Wed
6Thu7:089.77:529.612:530.81:29-0.15:267:49Waxing Gibbous6Thu
7Fri8:159.98:5110.21:590.32:30-0.35:247:50Waxing Gibbous7Fri
8Sat9:1710.29:4510.83:02-0.33:27-0.65:237:51Waxing Gibbous8Sat
9Sun10:1410.510:3611.24:00-0.94:20-0.85:227:52Full Moon9Sun
10Mon11:0910.611:2711.54:54-1.45:11-0.85:217:53Full Moon10Mon
11Tue12:0310.65:47-1.66:01-0.75:197:54Full Moon11Tue
12Wed12:1611.612:5410.46:38-1.76:50-0.45:187:55Full Moon12Wed
13Thu1:0411.41:4510.17:28-1.57:400.05:177:57Waning Gibbous13Thu
14Fri1:5311.02:369.78:18-1.18:300.45:167:58Waning Gibbous14Fri
15Sat2:4310.53:299.39:09-0.69:220.95:157:59Waning Gibbous15Sat
16Sun3:3510.04:248.910:030.010:181.35:148:00Third Quarter16Sun
17Mon4:319.45:208.710:570.411:161.65:138:01Third Quarter17Mon
18Tue5:289.06:158.611:530.85:128:02Third Quarter18Tue
19Wed6:268.77:108.612:161.812:481.15:118:03Third Quarter19Wed
20Thu7:258.58:038.71:161.81:421.25:108:04Waning Crescent20Thu
21Fri8:218.58:519.02:141.62:331.25:098:05Waning Crescent21Fri
22Sat9:128.69:349.33:061.33:171.15:088:06Waning Crescent22Sat
23Sun9:588.710:149.63:510.93:581.15:088:07Waning Crescent23Sun
24Mon10:418.810:519.84:310.64:361.05:078:08New Moon24Mon
25Tue11:228.911:2810.05:100.35:120.95:068:09New Moon25Tue
26Wed12:029.05:480.05:500.95:058:10New Moon26Wed
27Thu12:0410.212:419.16:26-0.26:290.85:058:11New Moon27Thu
28Fri12:4210.31:219.17:05-0.47:100.85:048:12Waxing Crescent28Fri
29Sat1:2210.42:039.17:47-0.47:540.85:038:13Waxing Crescent29Sat
30Sun2:0510.42:499.18:31-0.58:420.85:038:14Waxing Crescent30Sun
31Mon2:5210.33:399.29:20-0.49:340.85:028:14Waxing Crescent31Mon
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 transitional phase. Tonight's moon is 78% 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 Waxing Gibbous (78% 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

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