Nearby Harbors
42.2552’ N, 70.9184’ W

Weymouth – Back River, MA

59°
H 60°
L 48°
NNE
16mph
High tide
7:27 pm
Photo Credits

Tides Today & Tomorrow in Weymouth – Back River, MA

TIDE TIMES for Tuesday, October 20, 2026
The tide is currently rising in Weymouth - Back River, MA.
Next low tide (tomorrow) : 1:51 am (1.5 ft)
Next high tide : in 4h 46m at 7:27 pm (8.9 ft)
Sunset today : 5:54 pm
Sunrise tomorrow : 7:02 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #8444662
Common Questions About Tides

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Boston Yacht Sales Sabre 43

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Constitution Marina with downtown Boston in the background.

Constitution Marina

Weymouth – Back River, MA Tides - Apr 2242

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Common Questions About Weymouth - Back River, MA Tides

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Is this week a spring tide or neap tide in Weymouth - Back River, MA?

Weymouth - Back River, MA is currently in a transitional phase. Tonight's moon is 69% 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 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 First Quarter (69% illuminated). This places Weymouth - Back River, 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

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