Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Portland, ME.
Next low tide : in 5h 44m at 9:38 pm (1.2 ft)
Next high tide (tomorrow) : 3:45 am (9.3 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Oct 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:378.47:529.51:170.91:341.36:386:22Waxing Gibbous1Thu
2Fri8:338.98:499.92:150.52:330.76:396:20Waxing Gibbous2Fri
3Sat9:249.69:4310.53:080.03:270.06:406:19Waxing Gibbous3Sat
4Sun10:1310.310:3410.93:58-0.64:19-0.76:426:17Full Moon4Sun
5Mon11:0010.911:2511.24:46-1.05:10-1.36:436:15Full Moon5Mon
6Tue11:4911.45:34-1.36:01-1.76:446:13Full Moon6Tue
7Wed12:1711.312:3811.66:23-1.46:53-1.86:456:12Waning Gibbous7Wed
8Thu1:0911.21:2811.77:13-1.27:46-1.76:466:10Waning Gibbous8Thu
9Fri2:0210.82:2011.48:05-0.98:41-1.46:476:08Waning Gibbous9Fri
10Sat2:5910.43:1611.08:59-0.49:40-0.96:496:06Waning Gibbous10Sat
11Sun4:009.84:1810.59:590.210:43-0.46:506:05Third Quarter11Sun
12Mon5:049.45:2310.011:030.611:490.06:516:03Third Quarter12Mon
13Tue6:109.16:299.712:100.96:526:01Third Quarter13Tue
14Wed7:159.07:359.512:550.31:181.06:545:59Waning Crescent14Wed
15Thu8:169.18:369.52:000.42:220.96:555:58Waning Crescent15Thu
16Fri9:119.39:309.52:570.43:190.76:565:56Waning Crescent16Fri
17Sat9:589.510:179.63:460.34:070.56:575:55Waning Crescent17Sat
18Sun10:409.611:009.64:290.34:500.36:585:53New Moon18Sun
19Mon11:189.811:409.55:070.45:300.27:005:51New Moon19Mon
20Tue11:549.85:430.56:060.17:015:50New Moon20Tue
21Wed12:189.412:289.86:160.66:410.27:025:48New Moon21Wed
22Thu12:549.21:019.76:490.87:150.27:035:46Waxing Crescent22Thu
23Fri1:309.01:349.67:231.07:510.47:055:45Waxing Crescent23Fri
24Sat2:068.82:099.57:591.28:290.57:065:43Waxing Crescent24Sat
25Sun1:458.61:489.37:381.48:100.76:074:42Waxing Crescent25Sun
26Mon2:288.42:329.28:211.68:570.86:094:40First Quarter26Mon
27Tue3:168.33:229.19:111.69:480.96:104:39First Quarter27Tue
28Wed4:088.34:189.110:051.610:430.86:114:37First Quarter28Wed
29Thu5:048.45:179.211:031.411:400.66:124:36First Quarter29Thu
30Fri6:018.86:199.512:041.06:144:35Waxing Gibbous30Fri
31Sat6:599.47:209.812:380.31:050.56:154:33Waxing Gibbous31Sat
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 12:41 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 transitional phase. Tonight's moon is 72% 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 Waning Gibbous (72% 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