Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 6:30 am (0.2 ft)
Next high tide (tomorrow) : in 40m at 12:08 am (9.6 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 5:26 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:3811.15:22-0.26:04-1.46:544:04Waning Gibbous1Wed
2Thu12:219.512:2710.86:120.16:54-1.16:554:03Waning Gibbous2Thu
3Fri1:129.21:1710.37:020.57:45-0.66:564:03Waning Gibbous3Fri
4Sat2:048.82:099.77:540.98:38-0.16:574:03Waning Gibbous4Sat
5Sun2:588.53:059.28:491.39:320.46:584:03Third Quarter5Sun
6Mon3:548.34:028.79:481.610:260.86:594:02Third Quarter6Mon
7Tue4:488.25:008.410:481.711:191.07:004:02Third Quarter7Tue
8Wed5:428.25:588.111:481.77:014:02Third Quarter8Wed
9Thu6:348.46:558.012:121.212:471.57:024:02Waning Crescent9Thu
10Fri7:238.67:498.01:031.31:411.27:034:02Waning Crescent10Fri
11Sat8:078.98:378.11:501.32:280.97:044:02Waning Crescent11Sat
12Sun8:489.19:218.22:321.33:100.67:054:03Waning Crescent12Sun
13Mon9:269.410:038.33:111.23:500.37:054:03New Moon13Mon
14Tue10:049.610:448.43:491.14:280.07:064:03New Moon14Tue
15Wed10:429.711:238.44:271.05:06-0.17:074:03New Moon15Wed
16Thu11:209.95:061.05:46-0.37:074:03New Moon16Thu
17Fri12:038.512:0110.05:470.96:27-0.47:084:04Waxing Crescent17Fri
18Sat12:438.512:4410.06:300.87:10-0.47:094:04Waxing Crescent18Sat
19Sun1:278.61:309.97:170.87:57-0.37:094:05Waxing Crescent19Sun
20Mon2:158.62:229.78:080.88:48-0.37:104:05Waxing Crescent20Mon
21Tue3:088.83:199.59:050.89:41-0.27:104:06First Quarter21Tue
22Wed4:049.04:209.210:070.710:370.07:114:06First Quarter22Wed
23Thu5:029.25:259.011:110.511:360.17:114:07First Quarter23Thu
24Fri6:019.66:328.912:170.27:124:07Waxing Gibbous24Fri
25Sat7:019.97:379.012:360.21:23-0.27:124:08Waxing Gibbous25Sat
26Sun7:5810.38:389.11:360.22:23-0.77:124:09Waxing Gibbous26Sun
27Mon8:5210.69:349.22:330.13:19-1.07:124:09Full Moon27Mon
28Tue9:4410.710:279.33:260.04:12-1.27:134:10Full Moon28Tue
29Wed10:3510.811:189.34:180.05:02-1.27:134:11Full Moon29Wed
30Thu11:2410.75:070.15:50-1.17:134:12Full Moon30Thu
31Fri12:069.112:1110.45:550.36:36-0.87:134:13Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 3:19 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 South Harpswell, ME?

South Harpswell, ME is currently in a spring phase. Tonight's moon is 100% 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 South Harpswell, 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 South Harpswell, ME?

Tide predictions for South Harpswell, 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 South Harpswell, ME?

Tide data for South Harpswell, ME is sourced from NOAA Station #8417647. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8417647.

What is the moon phase in South Harpswell, ME tonight?

Tonight the moon over South Harpswell, ME is Full Moon (100% illuminated). This places South Harpswell, 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