Constitution Marina
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Around here
Around Constitution Marina
- Charles RiverRecreation area5.8 mi (opens in a new tab)
- Hartwell TavernVisitor center13.1 mi (opens in a new tab)
- Minute Man National Historical ParkRecreation area13.9 mi (opens in a new tab)
- The Wayside: Home of AuthorsVisitor center15.2 mi (opens in a new tab)
- North Bridge Visitor CenterVisitor center16.4 mi (opens in a new tab)
Data Source: Recreation.gov · Source: USGS GNIS · Source: National Park Service. No claim to original U.S. Government works. · Public land: USGS PAD-US
Typical flow by month
2006 to 2025
The water at Constitution Marina typically runs highest in April, at a median 11 cfs, and lowest in September, at 4.3 cfs. The highest flow on record for any single day is 180 cfs, in 2010.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 9.8 | 7.9 to 13 |
| February | 9.2 | 7.5 to 12 |
| March | 11 | 8.1 to 15 |
| April | 11 | 8.0 to 16 |
| May | 8.5 | 6.6 to 11 |
| June | 7.4 | 5.4 to 11 |
| July | 6.2 | 4.0 to 9.7 |
| August | 5.0 | 3.5 to 7.5 |
| September | 4.3 | 3.3 to 8.1 |
| October | 5.4 | 3.6 to 10 |
| November | 7.0 | 4.5 to 11 |
| December | 9.5 | 6.4 to 14 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 19 years of record. Statistics published by the US Geological Survey for Alewife Brook near Arlington, MA (site 01103025). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Today · Fri
47Maybe/ 100
4.5 ft waves · 100% chance of rain
RainHigh 68°F, low 62°FRain 100%Wind 10 kt, gusts 28
Waves
4.5 ft @ 6s
Wind
12 kt
Gusts 28 kt
Water
57°F
Air
55°F
Streamflow
3.1 cfs
Below normal (12th)
Water level
1.67 ft
Air quality
23 Good
Boston - Roxbury monitor, 5 km
Tides
Falling
Low 0.6 ft at Sat 3:14 AM
Predicted at Charlestown, Charles River entrance, under 1 km away.
Get a 2027 tide calendar for this stationForecast from Open-Meteo global models (NOAA & ECMWF). Air quality: Massachusetts Dept. of Environmental Protection via EPA AirNow. Preliminary data, not verified. Tide predictions: NOAA CO-OPS, feet above mean lower low water. See full conditions →
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