Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 4:24 am (-0.8 ft)
Next high tide : in 5h 35m at 9:51 pm (10.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:09 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - May 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:058.45:587.611:331.311:452.35:317:42Third Quarter1Mon
2Tue6:018.36:527.712:261.45:297:44Third Quarter2Tue
3Wed6:588.27:438.112:432.11:181.35:287:45Third Quarter3Wed
4Thu7:558.48:318.51:421.82:081.15:277:46Waning Crescent4Thu
5Fri8:488.69:149.12:361.32:550.95:257:47Waning Crescent5Fri
6Sat9:378.89:559.73:250.73:380.65:247:48Waning Crescent6Sat
7Sun10:249.110:3610.24:110.04:200.45:237:49New Moon7Sun
8Mon11:109.311:1910.74:56-0.55:040.25:227:51New Moon8Mon
9Tue11:589.55:42-1.05:500.15:207:52New Moon9Tue
10Wed12:0410.912:469.56:30-1.26:380.15:197:53New Moon10Wed
11Thu12:5211.01:379.47:20-1.37:280.25:187:54Waxing Crescent11Thu
12Fri1:4310.92:309.28:12-1.18:210.45:177:55Waxing Crescent12Fri
13Sat2:3710.73:299.09:08-0.89:200.75:167:56Waxing Crescent13Sat
14Sun3:3810.34:328.910:09-0.510:240.95:157:57First Quarter14Sun
15Mon4:439.95:378.911:12-0.211:321.05:147:58First Quarter15Mon
16Tue5:519.56:409.012:150.15:128:00First Quarter16Tue
17Wed6:599.27:429.212:421.01:170.35:118:01Waxing Gibbous17Wed
18Thu8:059.18:389.51:510.82:170.45:118:02Waxing Gibbous18Thu
19Fri9:059.09:299.82:540.53:110.55:108:03Waxing Gibbous19Fri
20Sat10:008.910:159.93:480.13:590.75:098:04Waxing Gibbous20Sat
21Sun10:498.910:5710.04:37-0.14:430.85:088:05Full Moon21Sun
22Mon11:368.811:3810.05:22-0.25:251.05:078:06Full Moon22Mon
23Tue12:198.76:04-0.26:041.25:068:07Full Moon23Tue
24Wed12:179.812:598.56:44-0.16:431.45:058:08Full Moon24Wed
25Thu12:559.71:398.47:230.17:211.55:058:09Waning Gibbous25Thu
26Fri1:339.52:188.28:010.38:001.75:048:10Waning Gibbous26Fri
27Sat2:129.32:598.08:400.58:421.85:038:11Waning Gibbous27Sat
28Sun2:549.13:438.09:220.79:272.05:038:11Waning Gibbous28Sun
29Mon3:398.94:297.910:050.910:152.05:028:12Third Quarter29Mon
30Tue4:278.75:158.010:501.011:062.05:018:13Third Quarter30Tue
31Wed5:178.56:018.311:361.15:018:14Third 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 1:07 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 5% 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 (5% 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