Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 50m at 8:10 am (0.0 ft)
Next high tide : 2:25 pm (9.4 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - May 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:139.33:568.49:360.69:471.75:327:43Waxing Crescent1Sun
2Mon3:599.04:458.210:220.910:361.85:317:44First Quarter2Mon
3Tue4:498.85:358.211:111.011:281.95:307:45First Quarter3Tue
4Wed5:428.66:278.312:021.15:287:46First Quarter4Wed
5Thu6:388.67:208.512:241.812:551.15:277:47First Quarter5Thu
6Fri7:358.78:119.01:211.51:480.95:267:49Waxing Gibbous6Fri
7Sat8:309.08:599.52:171.12:390.65:247:50Waxing Gibbous7Sat
8Sun9:229.49:4410.13:100.53:270.25:237:51Waxing Gibbous8Sun
9Mon10:129.710:2910.73:59-0.24:13-0.15:227:52Full Moon9Mon
10Tue11:0110.111:1511.24:47-0.85:00-0.45:217:53Full Moon10Tue
11Wed11:5010.35:35-1.35:48-0.65:197:54Full Moon11Wed
12Thu12:0211.512:4110.46:25-1.76:38-0.75:187:55Full Moon12Thu
13Fri12:5211.71:3210.47:15-1.87:29-0.65:177:56Waning Gibbous13Fri
14Sat1:4311.62:2610.38:08-1.78:23-0.35:167:58Waning Gibbous14Sat
15Sun2:3711.33:2410.09:03-1.49:210.05:157:59Waning Gibbous15Sun
16Mon3:3610.94:269.810:02-1.010:240.35:148:00Third Quarter16Mon
17Tue4:4010.45:299.711:04-0.611:300.65:138:01Third Quarter17Tue
18Wed5:4610.06:329.612:06-0.25:128:02Third Quarter18Wed
19Thu6:529.67:349.712:370.71:100.15:118:03Waning Crescent19Thu
20Fri7:589.48:329.91:450.62:110.35:108:04Waning Crescent20Fri
21Sat8:589.39:2410.02:480.43:070.45:098:05Waning Crescent21Sat
22Sun9:539.310:1210.13:430.13:560.55:088:06Waning Crescent22Sun
23Mon10:429.310:5510.24:32-0.14:410.65:078:07New Moon23Mon
24Tue11:279.211:3510.25:16-0.25:220.75:078:08New Moon24Tue
25Wed12:109.25:58-0.26:010.95:068:09New Moon25Wed
26Thu12:1410.112:509.16:36-0.16:391.05:058:10New Moon26Thu
27Fri12:5110.01:288.97:130.07:161.25:048:11Waxing Crescent27Fri
28Sat1:279.82:068.87:500.17:531.35:048:12Waxing Crescent28Sat
29Sun2:049.72:458.78:270.38:331.55:038:13Waxing Crescent29Sun
30Mon2:439.43:268.69:060.59:151.65:038:13Waxing Crescent30Mon
31Tue3:259.24:108.59:480.610:021.75:028:14Waxing Crescent31Tue
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 11:17 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 84% 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 Waning Gibbous (84% 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