Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 6:30 am (0.2 ft)
Next high tide (tomorrow) : in 5h 10m at 12:08 am (9.6 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 5:26 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jul 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:127.88:289.02:011.42:051.65:028:25Waxing Gibbous1Thu
2Fri9:057.99:149.32:531.12:531.65:038:25Waxing Gibbous2Fri
3Sat9:548.09:589.63:410.73:401.45:038:25Waxing Gibbous3Sat
4Sun10:418.310:4310.04:260.34:251.25:048:25Full Moon4Sun
5Mon11:278.511:2910.35:11-0.15:110.95:058:24Full Moon5Mon
6Tue12:148.85:57-0.45:590.75:058:24Full Moon6Tue
7Wed12:1610.61:009.06:43-0.76:480.55:068:23Full Moon7Wed
8Thu1:0410.71:489.27:30-0.97:380.35:078:23Waning Gibbous8Thu
9Fri1:5410.72:379.58:18-0.98:310.25:088:23Waning Gibbous9Fri
10Sat2:4610.63:299.69:09-0.99:270.25:088:22Waning Gibbous10Sat
11Sun3:4210.34:249.810:01-0.710:270.25:098:21Third Quarter11Sun
12Mon4:419.95:209.910:55-0.411:290.25:108:21Third Quarter12Mon
13Tue5:439.46:1710.011:510.05:118:20Third Quarter13Tue
14Wed6:479.17:1610.012:330.212:500.35:128:20Waning Crescent14Wed
15Thu7:538.88:1510.11:390.11:510.65:138:19Waning Crescent15Thu
16Fri8:578.79:1210.22:430.02:510.85:138:18Waning Crescent16Fri
17Sat9:568.710:0610.23:42-0.23:470.85:148:17Waning Crescent17Sat
18Sun10:508.710:5710.24:36-0.34:390.95:158:17New Moon18Sun
19Mon11:408.711:4510.25:26-0.45:280.95:168:16New Moon19Mon
20Tue12:278.86:13-0.36:140.95:178:15New Moon20Tue
21Wed12:3010.11:108.76:56-0.26:571.05:188:14New Moon21Wed
22Thu1:129.91:508.77:360.07:391.15:198:13Waxing Crescent22Thu
23Fri1:529.72:298.78:140.28:201.25:208:12Waxing Crescent23Fri
24Sat2:339.43:088.68:510.49:031.35:218:11Waxing Crescent24Sat
25Sun3:149.03:498.69:290.79:471.45:228:10Waxing Crescent25Sun
26Mon3:588.64:308.610:090.910:341.55:238:09First Quarter26Mon
27Tue4:458.35:138.610:501.211:231.55:248:08First Quarter27Tue
28Wed5:348.05:588.711:341.55:258:07First Quarter28Wed
29Thu6:277.76:468.712:151.512:221.75:268:06First Quarter29Thu
30Fri7:247.67:388.91:101.41:141.75:278:05Waxing Gibbous30Fri
31Sat8:227.78:329.22:071.22:101.65:298:04Waxing Gibbous31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

Show All
What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 3:19 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 100% 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 Full Moon (100% 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