Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, July 19, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 1h 00m at 9:39 am (-0.3 ft)
Next high tide : 4:00 pm (9.7 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:15 am
Moon phase : First Quarter (32% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:169.03:309.49:170.79:49-0.16:544:03First Quarter1Sat
2Sun4:129.24:319.310:180.610:460.06:554:03First Quarter2Sun
3Mon5:109.55:369.211:210.311:450.16:564:03First Quarter3Mon
4Tue6:099.86:429.212:270.06:574:03Waxing Gibbous4Tue
5Wed7:0910.27:469.312:460.01:31-0.46:584:03Waxing Gibbous5Wed
6Thu8:0710.68:469.51:46-0.12:31-0.96:594:02Waxing Gibbous6Thu
7Fri9:0110.99:419.62:42-0.23:26-1.27:004:02Full Moon7Fri
8Sat9:5411.110:359.73:36-0.34:19-1.47:014:02Full Moon8Sat
9Sun10:4511.111:269.74:27-0.35:10-1.47:024:02Full Moon9Sun
10Mon11:3410.95:18-0.25:58-1.37:034:02Full Moon10Mon
11Tue12:159.512:2310.66:070.06:46-1.07:044:02Waning Gibbous11Tue
12Wed1:029.31:1010.26:550.37:32-0.57:054:03Waning Gibbous12Wed
13Thu1:509.11:599.67:450.68:19-0.17:054:03Waning Gibbous13Thu
14Fri2:398.92:499.18:360.99:070.47:064:03Third Quarter14Fri
15Sat3:298.73:428.69:301.29:560.87:074:03Third Quarter15Sat
16Sun4:198.54:378.210:251.410:451.17:084:04Third Quarter16Sun
17Mon5:108.55:337.911:221.511:361.47:084:04Third Quarter17Mon
18Tue6:018.56:317.712:211.47:094:04Waning Crescent18Tue
19Wed6:538.67:277.712:291.51:171.27:094:05Waning Crescent19Wed
20Thu7:428.88:197.91:211.52:080.97:104:05Waning Crescent20Thu
21Fri8:289.19:068.12:091.42:530.67:104:06Waning Crescent21Fri
22Sat9:119.49:498.32:531.23:350.27:114:06New Moon22Sat
23Sun9:519.710:308.53:341.04:15-0.17:114:07New Moon23Sun
24Mon10:3210.011:118.74:150.74:55-0.47:124:07New Moon24Mon
25Tue11:1310.211:519.04:570.55:35-0.67:124:08New Moon25Tue
26Wed11:5510.35:400.36:16-0.87:124:09Waxing Crescent26Wed
27Thu12:329.212:3910.36:250.16:59-0.97:134:09Waxing Crescent27Thu
28Fri1:169.41:2510.27:130.07:44-0.87:134:10Waxing Crescent28Fri
29Sat2:039.52:169.98:040.08:33-0.77:134:11Waxing Crescent29Sat
30Sun2:549.63:139.69:000.09:26-0.47:134:12First Quarter30Sun
31Mon3:499.74:149.210:000.07:134:13First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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

Slack tide in South Harpswell, ME is approximately 12:49 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 transitional phase. Tonight's moon is 32% 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 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 First Quarter (32% illuminated). This places South Harpswell, 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