Tides Today & Tomorrow in Weymouth – Back River, MA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Weymouth - Back River, MA.
Next low tide : in 19m at 5:20 am (-0.7 ft)
Next high tide : 11:31 am (9.8 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 5:48 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8444662
Common Questions About Tides

Weymouth – Back River, MA Tides - Jan 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:419.710:178.53:281.34:080.47:124:21New Moon1Tue
2Wed10:209.910:588.64:101.24:480.17:124:22New Moon2Wed
3Thu10:5910.011:388.74:501.05:27-0.17:124:23New Moon3Thu
4Fri11:3910.15:310.96:07-0.27:124:24New Moon4Fri
5Sat12:188.712:1910.26:130.86:48-0.37:124:25Waxing Crescent5Sat
6Sun12:588.91:0110.26:550.77:29-0.47:124:26Waxing Crescent6Sun
7Mon1:399.01:4510.27:400.78:12-0.47:124:27Waxing Crescent7Mon
8Tue2:229.12:3210.08:270.68:58-0.37:124:28Waxing Crescent8Tue
9Wed3:099.33:239.89:190.69:48-0.17:124:29First Quarter9Wed
10Thu3:599.54:199.510:160.510:410.07:114:30First Quarter10Thu
11Fri4:539.75:199.211:150.311:370.27:114:31First Quarter11Fri
12Sat5:4910.06:229.112:160.17:114:32Waxing Gibbous12Sat
13Sun6:4810.27:269.012:340.31:19-0.27:104:33Waxing Gibbous13Sun
14Mon7:4810.58:309.11:340.32:21-0.57:104:34Waxing Gibbous14Mon
15Tue8:4710.89:309.32:330.23:20-0.97:104:36Waxing Gibbous15Tue
16Wed9:4211.010:259.53:300.04:15-1.27:094:37Full Moon16Wed
17Thu10:3611.111:189.64:24-0.15:07-1.37:094:38Full Moon17Thu
18Fri11:2811.15:16-0.25:57-1.27:084:39Full Moon18Fri
19Sat12:099.612:1910.96:06-0.16:45-1.07:084:40Waning Gibbous19Sat
20Sun12:589.51:0810.56:560.17:31-0.77:074:42Waning Gibbous20Sun
21Mon1:459.41:5510.07:440.38:17-0.27:064:43Waning Gibbous21Mon
22Tue2:309.22:449.58:340.69:030.37:064:44Waning Gibbous22Tue
23Wed3:179.03:348.99:240.99:500.87:054:45Third Quarter23Wed
24Thu4:058.84:268.410:181.210:391.27:044:47Third Quarter24Thu
25Fri4:548.75:218.011:131.411:291.57:034:48Third Quarter25Fri
26Sat5:458.76:187.812:081.47:034:49Third Quarter26Sat
27Sun6:388.77:167.712:211.71:051.47:024:50Waning Crescent27Sun
28Mon7:318.88:127.81:131.82:001.27:014:52Waning Crescent28Mon
29Tue8:229.19:028.02:051.72:510.97:004:53Waning Crescent29Tue
30Wed9:099.49:488.22:551.53:370.56:594:54Waning Crescent30Wed
31Thu9:529.810:308.53:401.24:200.16:584:56New Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8444662)

Common Questions About Weymouth - Back River, MA Tides

Show All
What time does the tide turn (slack tide) in Weymouth - Back River, MA today?

Slack tide in Weymouth - Back River, MA is approximately 8:25 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 Weymouth - Back River, MA?

Weymouth - Back River, MA is currently in a spring phase. Tonight's moon is 0% 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 Weymouth - Back River, 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 Weymouth - Back River, MA?

Tide predictions for Weymouth - Back River, 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 Weymouth - Back River, MA?

Tide data for Weymouth - Back River, MA is sourced from NOAA Station #8444662. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8444662.

What is the moon phase in Weymouth - Back River, MA tonight?

Tonight the moon over Weymouth - Back River, MA is New Moon (0% illuminated). This places Weymouth - Back River, MA 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