Tides Today & Tomorrow in Scituate Harbor, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Scituate Harbor, MA.
Next low tide : 11:38 am (1.6 ft)
Next high tide : in 2h 33m at 5:42 am (7.9 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 - May 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:528.57:358.012:311.81:081.15:387:41First Quarter1Mon
2Tue7:518.48:298.21:301.82:031.25:367:42Waxing Gibbous2Tue
3Wed8:468.49:178.42:261.62:541.25:357:44Waxing Gibbous3Wed
4Thu9:368.510:008.73:181.43:401.15:347:45Waxing Gibbous4Thu
5Fri10:218.610:408.94:051.14:231.05:327:46Waxing Gibbous5Fri
6Sat11:038.711:179.24:480.75:031.05:317:47Full Moon6Sat
7Sun11:428.711:539.45:290.45:410.95:307:48Full Moon7Sun
8Mon12:218.86:080.26:190.95:297:49Full Moon8Mon
9Tue12:299.61:008.86:48-0.16:580.85:277:50Full Moon9Tue
10Wed1:089.81:418.97:29-0.27:390.85:267:51Waning Gibbous10Wed
11Thu1:4910.02:258.98:13-0.38:240.85:257:52Waning Gibbous11Thu
12Fri2:3410.03:138.89:01-0.49:130.95:247:53Waning Gibbous12Fri
13Sat3:2410.04:068.89:52-0.310:070.95:237:54Waning Gibbous13Sat
14Sun4:199.95:038.810:47-0.211:060.95:227:55Third Quarter14Sun
15Mon5:209.76:048.911:46-0.15:217:56Third Quarter15Mon
16Tue6:249.67:079.212:090.812:46-0.15:207:57Third Quarter16Tue
17Wed7:309.68:089.61:140.51:46-0.25:197:58Waning Crescent17Wed
18Thu8:339.79:0510.12:170.22:44-0.25:187:59Waning Crescent18Thu
19Fri9:339.89:5910.53:17-0.33:39-0.35:178:00Waning Crescent19Fri
20Sat10:309.810:5110.84:14-0.74:31-0.35:168:01New Moon20Sat
21Sun11:249.811:3910.95:07-1.05:21-0.25:158:02New Moon21Sun
22Mon12:149.75:57-1.16:09-0.15:158:03New Moon22Mon
23Tue12:2610.81:019.56:45-1.06:550.25:148:04New Moon23Tue
24Wed1:1110.61:489.27:31-0.87:410.55:138:05Waxing Crescent24Wed
25Thu1:5610.32:348.98:17-0.58:270.85:128:06Waxing Crescent25Thu
26Fri2:429.93:218.69:04-0.19:161.25:128:07Waxing Crescent26Fri
27Sat3:309.54:108.49:520.210:061.45:118:08Waxing Crescent27Sat
28Sun4:209.15:018.210:410.610:581.75:108:09First Quarter28Sun
29Mon5:128.75:548.111:320.911:531.85:108:10First Quarter29Mon
30Tue6:088.46:498.212:241.15:098:10First Quarter30Tue
31Wed7:058.27:418.312:491.71:171.25:098:11First 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 8:40 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 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