Tides Today & Tomorrow in Scituate Harbor, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Scituate Harbor, MA.
Next low tide : in 30m at 11:38 am (1.6 ft)
Next high tide : 6:01 pm (8.8 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8445138
Common Questions About Tides

Scituate Harbor, MA Tides - Mar 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:049.77:458.612:440.91:300.17:196:31Waning Crescent1Mon
2Tue8:0710.08:498.81:470.82:33-0.17:176:33Waning Crescent2Tue
3Wed9:1010.39:499.22:490.53:33-0.57:156:34Waning Crescent3Wed
4Thu10:0910.710:469.73:490.14:30-0.87:146:35Waning Crescent4Thu
5Fri11:0610.911:3810.14:46-0.35:23-1.17:126:36New Moon5Fri
6Sat11:5811.05:40-0.76:12-1.27:106:37New Moon6Sat
7Sun12:2810.412:4911.06:31-0.97:00-1.27:096:39New Moon7Sun
8Mon1:1510.61:3710.77:21-1.07:46-0.97:076:40Waxing Crescent8Mon
9Tue2:0210.52:2510.38:10-0.88:32-0.67:056:41Waxing Crescent9Tue
10Wed2:4810.33:149.88:59-0.59:19-0.17:046:42Waxing Crescent10Wed
11Thu3:3610.04:049.29:49-0.110:070.57:026:43Waxing Crescent11Thu
12Fri4:259.64:568.710:400.310:571.07:006:44First Quarter12Fri
13Sat5:179.25:528.211:340.711:511.46:596:46First Quarter13Sat
14Sun6:138.86:527.912:311.06:576:47First Quarter14Sun
15Mon7:128.67:537.812:481.71:301.26:556:48First Quarter15Mon
16Tue8:118.68:507.81:461.82:271.26:546:49Waxing Gibbous16Tue
17Wed9:058.79:418.02:411.83:201.16:526:50Waxing Gibbous17Wed
18Thu9:558.810:268.23:331.64:081.06:506:51Waxing Gibbous18Thu
19Fri10:399.011:078.54:201.34:510.86:486:52Waxing Gibbous19Fri
20Sat11:209.211:448.85:031.05:300.66:476:54Full Moon20Sat
21Sun11:589.35:440.76:070.46:456:55Full Moon21Sun
22Mon12:199.112:369.46:230.46:440.36:436:56Full Moon22Mon
23Tue12:559.41:149.57:030.17:220.26:416:57Full Moon23Tue
24Wed1:329.71:559.57:45-0.18:030.26:406:58Waning Gibbous24Wed
25Thu2:129.92:399.48:29-0.28:460.36:386:59Waning Gibbous25Thu
26Fri2:5610.03:279.29:17-0.39:340.46:367:00Waning Gibbous26Fri
27Sat3:4510.04:209.010:09-0.210:260.66:357:02Third Quarter27Sat
28Sun4:399.95:198.811:06-0.111:230.76:337:03Third Quarter28Sun
29Mon5:409.86:238.712:070.06:317:04Third Quarter29Mon
30Tue6:459.87:298.812:260.81:110.06:297:05Third Quarter30Tue
31Wed7:529.98:349.11:310.72:14-0.26:287:06Waning Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8445138)

Common Questions About Scituate Harbor, MA Tides

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What time does the tide turn (slack tide) in Scituate Harbor, MA today?

Slack tide in Scituate Harbor, MA is approximately 2:49 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 Scituate Harbor, MA?

Scituate Harbor, MA is currently in a neap phase. Tonight's moon is 55% 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 minimum.

What datum are Scituate Harbor, MA 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 Scituate Harbor, MA?

Tide predictions for Scituate Harbor, MA 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 Scituate Harbor, MA?

Tide data for Scituate Harbor, MA is sourced from NOAA Station #8445138. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8445138.

What is the moon phase in Scituate Harbor, MA tonight?

Tonight the moon over Scituate Harbor, MA is First Quarter (55% illuminated). This places Scituate Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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