Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 3:33 am (0.7 ft)
Next high tide : in 6h 12m at 9:02 pm (9.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 4:59 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - May 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:0010.51:369.57:20-0.87:290.45:317:42Waxing Crescent1Thu
2Fri1:4210.22:209.18:03-0.58:120.75:307:43Waxing Crescent2Fri
3Sat2:259.83:068.88:47-0.18:571.15:297:44Waxing Crescent3Sat
4Sun3:109.43:548.59:330.39:451.45:277:45Waxing Crescent4Sun
5Mon3:589.04:448.310:220.710:361.75:267:47First Quarter5Mon
6Tue4:508.75:368.211:111.011:301.85:257:48First Quarter6Tue
7Wed5:448.46:288.212:021.25:237:49First Quarter7Wed
8Thu6:408.27:208.312:261.912:551.35:227:50First Quarter8Thu
9Fri7:378.28:118.61:241.71:471.35:217:51Waxing Gibbous9Fri
10Sat8:318.38:579.02:191.42:361.15:207:52Waxing Gibbous10Sat
11Sun9:218.69:399.43:091.03:200.95:187:54Waxing Gibbous11Sun
12Mon10:078.810:209.83:540.54:020.75:177:55Waxing Gibbous12Mon
13Tue10:519.111:0010.24:360.04:440.45:167:56Full Moon13Tue
14Wed11:349.311:4210.55:19-0.55:270.25:157:57Full Moon14Wed
15Thu12:199.56:03-0.86:110.15:147:58Full Moon15Thu
16Fri12:2510.81:059.66:48-1.16:570.05:137:59Waning Gibbous16Fri
17Sat1:1110.91:529.67:35-1.27:460.05:128:00Waning Gibbous17Sat
18Sun2:0010.92:439.68:24-1.18:390.15:118:01Waning Gibbous18Sun
19Mon2:5310.73:399.69:17-0.99:360.25:108:02Waning Gibbous19Mon
20Tue3:5110.34:399.510:14-0.710:370.45:098:03Third Quarter20Tue
21Wed4:5310.05:409.611:14-0.411:420.45:088:04Third Quarter21Wed
22Thu5:589.76:419.712:14-0.25:078:05Third Quarter22Thu
23Fri7:059.47:439.912:490.41:170.05:068:06Waning Crescent23Fri
24Sat8:119.38:4110.11:570.22:180.15:068:07Waning Crescent24Sat
25Sun9:129.39:3510.32:59-0.13:150.25:058:08Waning Crescent25Sun
26Mon10:089.410:2410.43:55-0.44:070.25:048:09Waning Crescent26Mon
27Tue11:009.411:1110.54:46-0.64:550.35:038:10New Moon27Tue
28Wed11:489.311:5510.45:34-0.65:400.45:038:11New Moon28Wed
29Thu12:339.26:19-0.66:240.65:028:12New Moon29Thu
30Fri12:3810.21:169.17:01-0.47:050.85:018:13New Moon30Fri
31Sat1:1910.01:588.97:42-0.27:461.05:018:14Waxing Crescent31Sat
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 12:17 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 84% 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 Waxing Gibbous (84% 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