Tides Today & Tomorrow in Scituate Harbor, MA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Scituate Harbor, MA.
Next low tide : 9:12 am (0.1 ft)
Next high tide : in 2h 36m at 3:06 am (9.6 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8445138
Common Questions About Tides

Scituate Harbor, MA Tides - Jan 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:349.04:598.510:510.911:100.87:114:21Third Quarter1Mon
2Tue5:299.36:018.411:510.67:114:21Third Quarter2Tue
3Wed6:269.77:048.412:060.912:520.37:114:22Waning Crescent3Wed
4Thu7:2410.08:058.51:030.91:52-0.17:114:23Waning Crescent4Thu
5Fri8:2110.49:058.72:010.82:51-0.57:114:24Waning Crescent5Fri
6Sat9:1910.810:038.92:580.63:48-0.97:114:25New Moon6Sat
7Sun10:1511.110:579.23:550.34:43-1.17:114:26New Moon7Sun
8Mon11:0911.211:499.44:490.15:34-1.27:114:27New Moon8Mon
9Tue12:0211.15:430.06:25-1.27:114:28Waxing Crescent9Tue
10Wed12:409.612:5310.96:36-0.17:14-1.07:114:29Waxing Crescent10Wed
11Thu1:309.61:4510.57:290.08:03-0.77:104:30Waxing Crescent11Thu
12Fri2:209.62:379.98:220.28:51-0.27:104:31Waxing Crescent12Fri
13Sat3:119.53:309.39:160.59:400.37:104:32First Quarter13Sat
14Sun4:029.34:258.710:110.710:300.87:094:34First Quarter14Sun
15Mon4:549.15:238.211:081.011:221.37:094:35First Quarter15Mon
16Tue5:499.06:237.812:061.27:084:36First Quarter16Tue
17Wed6:438.87:237.612:161.71:041.27:084:37Waxing Gibbous17Wed
18Thu7:378.88:187.51:101.91:591.27:074:38Waxing Gibbous18Thu
19Fri8:278.89:107.52:022.02:511.17:074:39Waxing Gibbous19Fri
20Sat9:159.09:567.62:522.03:381.07:064:41Waxing Gibbous20Sat
21Sun9:589.110:377.73:381.94:210.87:064:42Full Moon21Sun
22Mon10:399.311:147.94:201.75:000.67:054:43Full Moon22Mon
23Tue11:179.411:508.15:011.55:380.47:044:44Full Moon23Tue
24Wed11:549.55:401.36:150.37:034:46Full Moon24Wed
25Thu12:268.412:339.66:211.16:520.27:034:47Waning Gibbous25Thu
26Fri1:038.71:139.57:030.97:320.17:024:48Waning Gibbous26Fri
27Sat1:429.01:579.47:480.78:130.27:014:49Waning Gibbous27Sat
28Sun2:259.22:449.28:360.58:580.47:004:51Waning Gibbous28Sun
29Mon3:119.43:368.99:280.49:460.66:594:52Third Quarter29Mon
30Tue4:029.64:338.510:240.410:390.86:584:53Third Quarter30Tue
31Wed4:589.75:378.211:260.411:381.06:574:55Third Quarter31Wed
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 6:09 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 Scituate Harbor, MA?

Scituate Harbor, MA 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 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 Waxing Crescent (27% illuminated). This places Scituate Harbor, MA 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