Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 50m at 6:24 pm (-0.1 ft)
Next high tide (tomorrow) : 12:43 am (11.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:578.64:109.19:571.110:290.36:544:03Third Quarter1Mon
2Tue4:519.05:129.010:580.811:240.36:554:03Third Quarter2Tue
3Wed5:489.46:169.012:020.46:564:03Waning Crescent3Wed
4Thu6:459.97:209.112:220.21:06-0.16:574:03Waning Crescent4Thu
5Fri7:4210.48:219.31:210.12:07-0.76:584:03Waning Crescent5Fri
6Sat8:3610.89:189.42:180.03:03-1.16:594:02New Moon6Sat
7Sun9:2911.110:139.53:12-0.13:57-1.47:004:02New Moon7Sun
8Mon10:2211.211:079.54:05-0.24:50-1.57:014:02New Moon8Mon
9Tue11:1411.111:599.44:57-0.15:42-1.47:024:02New Moon9Tue
10Wed12:0610.95:490.06:33-1.17:034:02Waxing Crescent10Wed
11Thu12:509.312:5710.56:400.27:23-0.87:044:02Waxing Crescent11Thu
12Fri1:419.01:4810.07:320.68:13-0.37:054:03Waxing Crescent12Fri
13Sat2:338.82:419.48:270.99:040.27:054:03First Quarter13Sat
14Sun3:258.63:378.89:241.29:550.77:064:03First Quarter14Sun
15Mon4:188.54:348.310:221.410:461.17:074:03First Quarter15Mon
16Tue5:108.55:317.911:211.511:371.47:084:04First Quarter16Tue
17Wed6:018.56:307.712:211.47:084:04First Quarter17Wed
18Thu6:528.67:277.612:301.61:191.37:094:04Waxing Gibbous18Thu
19Fri7:418.78:207.71:221.72:101.07:094:05Waxing Gibbous19Fri
20Sat8:278.99:077.82:101.72:560.77:104:05Waxing Gibbous20Sat
21Sun9:099.19:517.92:531.63:380.57:104:06Waxing Gibbous21Sun
22Mon9:509.310:328.13:341.44:180.27:114:06Full Moon22Mon
23Tue10:309.511:128.24:131.34:560.07:114:07Full Moon23Tue
24Wed11:099.711:518.44:531.15:35-0.27:124:07Full Moon24Wed
25Thu11:499.95:330.96:13-0.37:124:08Waning Gibbous25Thu
26Fri12:298.512:299.96:150.86:53-0.47:124:09Waning Gibbous26Fri
27Sat1:098.71:129.96:590.67:35-0.47:134:09Waning Gibbous27Sat
28Sun1:528.91:599.77:470.68:20-0.47:134:10Waning Gibbous28Sun
29Mon2:389.12:529.48:400.59:09-0.27:134:11Third Quarter29Mon
30Tue3:299.33:499.19:370.410:010.07:134:12Third Quarter30Tue
31Wed4:239.54:508.810:380.37:134:13Third Quarter31Wed
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 9:33 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 South Harpswell, ME?

South Harpswell, ME is currently in a spring phase. Tonight's moon is 2% 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 New Moon (2% 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