Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 9:31 pm (0.4 ft)
Next high tide : in 1h 50m at 3:35 pm (9.5 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:57 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jul 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:558.410:0210.33:420.23:440.95:028:25Waxing Gibbous1Sat
2Sun10:488.710:5310.74:33-0.34:350.75:028:25Full Moon2Sun
3Mon11:408.911:4611.05:25-0.75:280.45:038:25Full Moon3Mon
4Tue12:339.26:16-1.06:220.25:038:25Full Moon4Tue
5Wed12:4011.21:269.47:08-1.27:160.05:048:24Waning Gibbous5Wed
6Thu1:3411.12:199.68:00-1.28:120.05:058:24Waning Gibbous6Thu
7Fri2:2910.93:149.78:53-1.19:100.15:058:24Waning Gibbous7Fri
8Sat3:2610.54:109.89:47-0.810:120.25:068:23Third Quarter8Sat
9Sun4:2710.05:079.910:43-0.411:150.35:078:23Third Quarter9Sun
10Mon5:299.56:049.911:390.05:078:22Third Quarter10Mon
11Tue6:329.07:019.812:190.412:360.55:088:22Third Quarter11Tue
12Wed7:378.67:599.81:240.41:350.95:098:21Waning Crescent12Wed
13Thu8:408.48:559.72:280.32:341.25:108:21Waning Crescent13Thu
14Fri9:388.39:479.73:260.23:291.35:118:20Waning Crescent14Fri
15Sat10:318.310:369.74:190.24:191.35:128:20Waning Crescent15Sat
16Sun11:198.311:219.75:070.15:051.45:128:19New Moon16Sun
17Mon12:038.35:510.15:481.35:138:18New Moon17Mon
18Tue12:049.712:448.46:310.26:291.35:148:17New Moon18Tue
19Wed12:439.61:228.47:090.27:071.35:158:17New Moon19Wed
20Thu1:219.51:598.47:440.37:451.45:168:16Waxing Crescent20Thu
21Fri1:589.42:348.58:180.48:241.45:178:15Waxing Crescent21Fri
22Sat2:359.23:118.58:530.59:041.45:188:14Waxing Crescent22Sat
23Sun3:148.93:488.69:290.79:471.45:198:13Waxing Crescent23Sun
24Mon3:578.64:278.710:070.910:341.45:208:12First Quarter24Mon
25Tue4:438.35:098.810:491.111:231.35:218:11First Quarter25Tue
26Wed5:328.15:559.011:341.35:228:10First Quarter26Wed
27Thu6:267.96:469.212:161.212:241.45:238:09First Quarter27Thu
28Fri7:267.97:429.51:131.01:201.45:248:08Waxing Gibbous28Fri
29Sat8:288.08:419.92:150.62:191.25:258:07Waxing Gibbous29Sat
30Sun9:288.39:3810.43:140.23:180.95:268:06Waxing Gibbous30Sun
31Mon10:258.710:3510.84:11-0.44:150.55:278:05Full Moon31Mon
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 6:33 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 27% 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 Waxing Crescent (27% 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