Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 6h 19m at 3:33 am (0.7 ft)
Next high tide (tomorrow) : 9:42 am (8.0 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 4:59 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:5710.49:349.42:410.23:20-0.76:544:04New Moon1Sun
2Mon9:4510.910:249.73:29-0.14:09-1.26:554:03New Moon2Mon
3Tue10:3411.211:149.94:18-0.44:58-1.66:564:03New Moon3Tue
4Wed11:2511.45:09-0.65:49-1.76:574:03Waxing Crescent4Wed
5Thu12:0610.012:1711.46:01-0.66:40-1.76:584:03Waxing Crescent5Thu
6Fri12:5910.01:1111.16:55-0.57:34-1.46:594:03Waxing Crescent6Fri
7Sat1:549.92:0810.77:52-0.38:30-1.17:004:02Waxing Crescent7Sat
8Sun2:539.83:1010.18:530.09:29-0.77:014:02First Quarter8Sun
9Mon3:549.74:159.69:580.210:30-0.27:024:02First Quarter9Mon
10Tue4:569.65:219.211:050.311:310.17:034:02First Quarter10Tue
11Wed5:579.66:278.912:130.37:034:02Waxing Gibbous11Wed
12Thu6:579.67:318.812:330.41:180.27:044:03Waxing Gibbous12Thu
13Fri7:539.78:288.71:330.62:170.07:054:03Waxing Gibbous13Fri
14Sat8:449.89:208.72:270.73:08-0.27:064:03Waxing Gibbous14Sat
15Sun9:309.910:068.83:150.73:54-0.37:074:03Full Moon15Sun
16Mon10:139.910:498.73:580.74:37-0.37:074:03Full Moon16Mon
17Tue10:539.811:298.74:390.85:16-0.37:084:04Full Moon17Tue
18Wed11:319.75:180.85:53-0.27:094:04Full Moon18Wed
19Thu12:078.712:089.65:550.96:28-0.17:094:04Waning Gibbous19Thu
20Fri12:448.612:449.46:321.07:030.17:104:05Waning Gibbous20Fri
21Sat1:208.51:219.27:091.17:390.37:104:05Waning Gibbous21Sat
22Sun1:588.52:019.07:501.28:170.47:114:06Waning Gibbous22Sun
23Mon2:378.52:448.78:331.38:580.67:114:06Third Quarter23Mon
24Tue3:208.53:318.49:211.39:430.77:124:07Third Quarter24Tue
25Wed4:048.64:228.210:111.210:300.97:124:08Third Quarter25Wed
26Thu4:528.85:178.111:051.111:210.97:124:08Third Quarter26Thu
27Fri5:449.06:168.212:030.87:134:09Waning Crescent27Fri
28Sat6:399.47:178.412:160.81:030.37:134:10Waning Crescent28Sat
29Sun7:359.98:158.71:140.62:01-0.27:134:11Waning Crescent29Sun
30Mon8:2910.59:109.22:100.22:56-0.87:134:11Waning Crescent30Mon
31Tue9:2311.010:059.73:04-0.23:48-1.47:134:12New Moon31Tue
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 6:37 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 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 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 Waxing Gibbous (84% 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