43.7418’ N, 70.0145’ W

South Harpswell, ME

64°
H 64°
L 57°
SSE
8mph
High tide
2:41 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 9:01 pm (0.3 ft)
Next high tide : in 34m at 2:41 pm (9.6 ft)
Sunset today : 6:50 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waxing Crescent (21% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - May 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:479.710:0810.63:33-0.33:52-0.35:317:42Waxing Gibbous1Sun
2Mon10:4010.110:5711.14:25-1.04:41-0.75:307:43Full Moon2Mon
3Tue11:3210.311:4611.55:16-1.55:31-0.95:297:44Full Moon3Tue
4Wed12:2410.56:07-1.96:22-0.95:277:45Full Moon4Wed
5Thu12:3711.61:1710.46:59-2.07:13-0.85:267:47Waning Gibbous5Thu
6Fri1:2911.62:1110.27:52-1.88:07-0.55:257:48Waning Gibbous6Fri
7Sat2:2311.23:0810.08:47-1.59:04-0.25:237:49Waning Gibbous7Sat
8Sun3:2110.84:099.69:46-1.010:060.25:227:50Third Quarter8Sun
9Mon4:2410.25:129.410:47-0.611:110.65:217:51Third Quarter9Mon
10Tue5:299.76:159.311:50-0.15:207:52Third Quarter10Tue
11Wed6:349.37:169.312:180.812:520.25:187:53Third Quarter11Wed
12Thu7:399.18:159.31:260.81:540.55:177:55Waning Crescent12Thu
13Fri8:408.99:089.52:290.72:500.65:167:56Waning Crescent13Fri
14Sat9:358.99:559.63:250.53:390.75:157:57Waning Crescent14Sat
15Sun10:238.910:389.74:140.24:240.75:147:58Waning Crescent15Sun
16Mon11:088.911:179.84:570.15:040.85:137:59New Moon16Mon
17Tue11:498.911:559.85:380.05:410.95:128:00New Moon17Tue
18Wed12:298.86:150.06:171.05:118:01New Moon18Wed
19Thu12:319.71:068.76:510.06:531.15:108:02New Moon19Thu
20Fri1:069.61:438.67:260.17:281.25:098:03Waxing Crescent20Fri
21Sat1:419.52:208.58:020.28:061.35:088:04Waxing Crescent21Sat
22Sun2:189.42:598.58:390.38:471.45:078:05Waxing Crescent22Sun
23Mon2:579.23:408.49:200.49:311.55:068:06Waxing Crescent23Mon
24Tue3:419.14:258.510:030.510:201.55:058:07First Quarter24Tue
25Wed4:309.05:128.610:500.511:121.35:058:08First Quarter25Wed
26Thu5:228.96:028.911:400.55:048:09First Quarter26Thu
27Fri6:198.96:559.312:081.112:320.55:038:10First Quarter27Fri
28Sat7:189.07:509.81:070.71:280.35:038:11Waxing Gibbous28Sat
29Sun8:209.28:4510.42:070.22:240.15:028:12Waxing Gibbous29Sun
30Mon9:199.59:3810.93:06-0.43:20-0.25:018:13Waxing Gibbous30Mon
31Tue10:159.810:3111.44:01-1.04:14-0.55:018:14Full Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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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 21% 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 (21% 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