Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 4h 53m at 11:59 am (0.5 ft)
Next high tide : 6:22 pm (9.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 4:59 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Sep 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:569.75:44-0.45:570.16:057:16New Moon1Thu
2Fri12:1110.312:379.86:25-0.36:390.16:067:14New Moon2Fri
3Sat12:5310.11:169.77:03-0.17:200.26:077:12Waxing Crescent3Sat
4Sun1:329.81:539.67:400.27:590.46:087:10Waxing Crescent4Sun
5Mon2:129.52:309.58:170.58:390.66:097:09Waxing Crescent5Mon
6Tue2:529.13:099.38:550.89:220.96:117:07Waxing Crescent6Tue
7Wed3:368.73:529.19:361.210:081.16:127:05First Quarter7Wed
8Thu4:238.34:388.910:211.510:571.36:137:03First Quarter8Thu
9Fri5:148.15:298.811:091.711:501.46:147:01First Quarter9Fri
10Sat6:087.96:238.812:011.86:157:00First Quarter10Sat
11Sun7:057.97:198.912:461.412:571.86:166:58Waxing Gibbous11Sun
12Mon8:028.18:159.31:441.21:551.56:176:56Waxing Gibbous12Mon
13Tue8:558.69:089.72:380.82:501.16:186:54Waxing Gibbous13Tue
14Wed9:429.19:5610.23:280.33:400.56:196:52Waxing Gibbous14Wed
15Thu10:289.710:4410.64:13-0.24:28-0.16:216:50Full Moon15Thu
16Fri11:1210.311:3111.04:58-0.75:16-0.76:226:49Full Moon16Fri
17Sat11:5710.85:43-1.06:05-1.16:236:47Full Moon17Sat
18Sun12:2011.112:4311.16:29-1.26:54-1.46:246:45Waning Gibbous18Sun
19Mon1:0911.11:3111.37:17-1.27:45-1.46:256:43Waning Gibbous19Mon
20Tue2:0010.92:2111.28:06-1.08:38-1.26:266:41Waning Gibbous20Tue
21Wed2:5410.53:1511.08:58-0.69:36-0.96:276:39Waning Gibbous21Wed
22Thu3:5410.04:1510.69:55-0.110:38-0.56:286:38Third Quarter22Thu
23Fri4:589.55:1910.310:570.311:43-0.26:306:36Third Quarter23Fri
24Sat6:049.26:2510.012:030.76:316:34Third Quarter24Sat
25Sun7:119.17:339.912:510.11:120.86:326:32Waning Crescent25Sun
26Mon8:169.18:369.91:590.12:190.86:336:30Waning Crescent26Mon
27Tue9:149.39:3310.02:590.13:180.56:346:28Waning Crescent27Tue
28Wed10:059.510:2310.03:520.04:100.36:356:27Waning Crescent28Wed
29Thu10:509.711:0910.04:380.04:560.16:366:25New Moon29Thu
30Fri11:319.811:519.95:200.05:390.16:386:23New Moon30Fri
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 3:10 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 58% 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 (58% 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