Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 4:29 pm (0.2 ft)
Next high tide : in 3h 18m at 10:39 am (9.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:499.35:360.45:550.16:155:28New Moon1Thu
2Fri12:089.112:229.16:100.36:250.26:145:29Waxing Crescent2Fri
3Sat12:389.212:568.96:440.26:570.46:125:31Waxing Crescent3Sat
4Sun1:099.21:328.77:210.27:320.66:105:32Waxing Crescent4Sun
5Mon1:449.32:138.48:020.38:120.86:095:33Waxing Crescent5Mon
6Tue2:249.23:008.18:490.48:591.16:075:34First Quarter6Tue
7Wed3:139.13:567.89:420.59:531.36:055:36First Quarter7Wed
8Thu4:109.14:597.610:430.610:541.46:035:37First Quarter8Thu
9Fri5:159.16:107.711:510.66:025:38First Quarter9Fri
10Sat6:279.37:208.112:031.31:020.36:005:39Waxing Gibbous10Sat
11Sun8:379.79:238.71:140.93:06-0.26:586:41Waxing Gibbous11Sun
12Mon9:3910.210:189.43:190.24:03-0.86:566:42Waxing Gibbous12Mon
13Tue10:3610.611:0910.14:18-0.44:54-1.26:556:43Full Moon13Tue
14Wed11:3010.811:5710.65:12-1.05:42-1.46:536:44Full Moon14Wed
15Thu12:2110.86:04-1.46:29-1.46:516:46Full Moon15Thu
16Fri12:4410.91:1110.66:55-1.67:15-1.16:496:47Waning Gibbous16Fri
17Sat1:2910.92:0010.17:44-1.48:00-0.66:476:48Waning Gibbous17Sat
18Sun2:1510.62:509.58:34-1.18:470.06:466:49Waning Gibbous18Sun
19Mon3:0210.13:438.89:26-0.59:370.76:446:51Waning Gibbous19Mon
20Tue3:549.54:408.210:210.110:321.36:426:52Third Quarter20Tue
21Wed4:509.05:417.711:210.711:311.86:406:53Third Quarter21Wed
22Thu5:528.56:457.512:251.16:386:54Third Quarter22Thu
23Fri6:578.37:497.412:362.01:321.36:376:55Third Quarter23Fri
24Sat8:018.38:477.61:442.02:331.26:356:57Waning Crescent24Sat
25Sun8:588.59:368.02:451.83:241.06:336:58Waning Crescent25Sun
26Mon9:478.710:188.43:351.44:060.86:316:59Waning Crescent26Mon
27Tue10:308.910:558.74:191.14:430.66:297:00Waning Crescent27Tue
28Wed11:099.011:299.14:580.75:160.56:287:01New Moon28Wed
29Thu11:469.15:340.45:480.46:267:03New Moon29Thu
30Fri12:019.312:229.16:080.16:190.46:247:04New Moon30Fri
31Sat12:329.512:579.06:43-0.16:520.56:227:05New Moon31Sat
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 1:34 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 1% 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 (1% 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