Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 11:21 pm (0.8 ft)
Next high tide : in 4h 46m at 5:08 pm (9.3 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:05 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:319.15:118.210:540.511:101.26:155:28Third Quarter1Sun
2Mon5:318.86:157.911:580.86:145:30Third Quarter2Mon
3Tue6:328.67:177.912:131.51:020.96:125:31Waning Crescent3Tue
4Wed7:328.68:128.01:161.52:000.86:105:32Waning Crescent4Wed
5Thu8:258.89:018.22:121.32:500.66:085:33Waning Crescent5Thu
6Fri9:129.09:438.52:591.13:330.46:075:35Waning Crescent6Fri
7Sat9:549.210:228.83:410.84:100.26:055:36New Moon7Sat
8Sun11:339.411:589.05:200.55:450.07:036:37New Moon8Sun
9Mon12:099.55:550.36:170.07:016:38New Moon9Mon
10Tue12:329.212:449.56:300.16:49-0.17:006:40New Moon10Tue
11Wed1:039.31:189.47:050.07:220.06:586:41Waxing Crescent11Wed
12Thu1:359.41:549.37:41-0.17:570.06:566:42Waxing Crescent12Thu
13Fri2:099.52:329.18:20-0.18:350.26:546:43Waxing Crescent13Fri
14Sat2:479.53:158.99:03-0.19:180.46:536:45Waxing Crescent14Sat
15Sun3:309.54:048.79:510.010:070.66:516:46First Quarter15Sun
16Mon4:219.55:018.510:460.111:020.76:496:47First Quarter16Mon
17Tue5:199.46:038.411:460.26:476:48First Quarter17Tue
18Wed6:239.47:128.512:040.812:510.16:456:50First Quarter18Wed
19Thu7:329.68:208.81:110.71:59-0.16:446:51Waxing Gibbous19Thu
20Fri8:4010.09:229.42:190.33:03-0.66:426:52Waxing Gibbous20Fri
21Sat9:4210.410:189.93:23-0.24:01-1.06:406:53Waxing Gibbous21Sat
22Sun10:3910.711:1010.44:21-0.84:53-1.36:386:54Full Moon22Sun
23Mon11:3310.911:5910.85:15-1.25:43-1.56:366:56Full Moon23Mon
24Tue12:2410.96:07-1.56:32-1.46:346:57Full Moon24Tue
25Wed12:4710.91:1410.76:57-1.57:18-1.16:336:58Waning Gibbous25Wed
26Thu1:3310.82:0310.27:46-1.38:04-0.66:316:59Waning Gibbous26Thu
27Fri2:1910.52:529.78:35-1.08:52-0.16:297:01Waning Gibbous27Fri
28Sat3:0710.03:449.19:26-0.49:410.56:277:02Waning Gibbous28Sat
29Sun3:579.54:398.610:190.110:351.16:257:03Third Quarter29Sun
30Mon4:529.05:378.111:160.611:321.56:247:04Third Quarter30Mon
31Tue5:498.66:367.912:161.06:227:05Third Quarter31Tue
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 8:14 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places South Harpswell, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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