Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 3:25 am (-0.4 ft)
Next high tide : in 28m at 8:51 pm (10.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Apr 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:159.16:028.411:420.45:206:06First Quarter1Thu
2Fri6:219.37:058.912:020.912:450.15:196:07Waxing Gibbous2Fri
3Sat7:279.78:049.61:080.41:45-0.35:176:09Waxing Gibbous3Sat
4Sun9:2810.19:5710.33:11-0.33:40-0.76:157:10Waxing Gibbous4Sun
5Mon10:2410.510:4810.94:08-1.04:32-1.16:137:11Full Moon5Mon
6Tue11:1810.711:3811.35:02-1.65:22-1.26:127:12Full Moon6Tue
7Wed12:1110.75:54-1.96:12-1.26:107:13Full Moon7Wed
8Thu12:2711.51:0310.56:46-2.07:01-1.06:087:15Waning Gibbous8Thu
9Fri1:1711.31:5510.27:37-1.87:51-0.66:067:16Waning Gibbous9Fri
10Sat2:0711.02:489.78:29-1.38:430.06:057:17Waning Gibbous10Sat
11Sun2:5910.53:449.29:24-0.89:380.56:037:18Waning Gibbous11Sun
12Mon3:559.94:438.710:22-0.210:381.06:017:19Third Quarter12Mon
13Tue4:569.35:448.311:230.411:411.45:597:21Third Quarter13Tue
14Wed5:588.86:468.212:250.85:587:22Third Quarter14Wed
15Thu7:028.67:458.212:461.61:261.05:567:23Third Quarter15Thu
16Fri8:038.58:398.41:511.52:231.05:547:24Waning Crescent16Fri
17Sat8:588.59:278.72:491.33:131.05:537:25Waning Crescent17Sat
18Sun9:478.610:089.03:381.03:550.95:517:27Waning Crescent18Sun
19Mon10:318.710:469.34:210.74:330.85:497:28Waning Crescent19Mon
20Tue11:118.811:229.55:000.45:080.85:487:29New Moon20Tue
21Wed11:508.811:569.65:370.25:420.85:467:30New Moon21Wed
22Thu12:278.86:120.06:160.85:457:31New Moon22Thu
23Fri12:299.71:038.86:47-0.16:500.95:437:33New Moon23Fri
24Sat1:039.71:398.77:23-0.17:270.95:427:34Waxing Crescent24Sat
25Sun1:399.72:178.68:01-0.18:071.05:407:35Waxing Crescent25Sun
26Mon2:189.72:598.58:430.08:521.05:387:36Waxing Crescent26Mon
27Tue3:039.63:478.59:300.19:421.15:377:37Waxing Crescent27Tue
28Wed3:559.54:418.510:220.110:381.15:357:39First Quarter28Wed
29Thu4:529.45:398.711:180.211:391.05:347:40First Quarter29Thu
30Fri5:549.46:399.012:160.15:337:41First Quarter30Fri
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 12:08 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 11% 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 Waning Crescent (11% 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