Union Square (Somerville)

Square Historic commercial and transit hub in Somerville

Public square in Somerville, Massachusetts known for restaurants, shops and a busy farmers’ market; visitors come for dining, local events and connections to nearby arts venues.

Main image

Union Square is a neighborhood and public square in Somerville, Massachusetts, that functions as a commercial, cultural and transportation hub. It is a focal point for dining, retail and community events in the city.

Union Square developed as a commercial center in the 19th century around rail and streetcar lines; it has seen waves of redevelopment and investment, with recent changes tied to improved transit and new commercial development.

Situated in southern Somerville, the square is adjacent to Cambridge and lies northwest of downtown Boston.

  • Transit access: Opened as part of the MBTA Green Line extension in 2022, providing direct light-rail service from Union Square to points in Cambridge and Boston.

What to See #

  • Union Square Plaza: A small urban plaza and commercial block that serves as the neighborhood's civic and event space, used for markets and public gatherings.
  • Union Square station: The MBTA Green Line station that opened as part of the Green Line Extension project, providing rail connections into Cambridge and downtown Boston.
Union Square (Somerville)
Union Square, Somerville, MA 02143
42.3795, -71.0962

How to Get to Union Square (Somerville) #

Take the MBTA Green Line Extension to Union Square station (recent service expansions) or the Red Line to nearby Davis Square and walk about 10-15 minutes. Multiple bus routes connect Somerville to Cambridge and Boston; for visitors, public transit plus a short walk is straightforward.

Tips for Visiting Union Square (Somerville) #

  • Visit on an open market day to see the square at its liveliest - farmers and vendors often set up nearby on weekends.
  • Use the Green Line MBTA (Davis Square stop) and then walk north a short block; Union Square is a short stroll from Davis or Porter Squares if one prefers a longer walk.
  • Check local events calendars - street festivals and art walks often center on Union Square.

Best Time to Visit Union Square (Somerville) #

Best visited in summer for events, or shoulder seasons for fewer crowds; easily accessible year-round by public transit.

Summer
Jun-Aug · 18-30°C (64-86°F)
Street events, outdoor dining, and festivals make the square lively.
Autumn
Sep-Nov · 5-20°C (41-68°F)
Cooling temperatures and vivid fall colors in nearby parks; neighborhood walks are pleasant.

Weather & Climate near Union Square (Somerville) #

Climate

Union Square (Somerville)'s climate is classified as Hot-Summer Continental - Hot-Summer Continental climate with warm summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -8°C to 30°C. Abundant rainfall (1134 mm/year), wettest in November, distributed fairly evenly throughout the year.

Temperature & Rainfall
Temperature Range
30°
Warmest Month
-8°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 2°C and lows of -8°C. Significant rainfall (101 mm).

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-8°

Weather

101 mm
Rainfall
4.9 m/s
Wind
Light Breeze

February

February is freezing with highs of 4°C and lows of -7°C. Regular rainfall (86 mm).

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-7°

Weather

86 mm
Rainfall
5.0 m/s
Wind
Light Breeze

March

March is cold with highs of 8°C and lows of -2°C. Significant rainfall (102 mm).

Comfort

Feels Like Cold
C
Temperature
-2°

Weather

102 mm
Rainfall
5.1 m/s
Wind
Light Breeze

April

April is cold with highs of 15°C and lows of 3°C. Regular rainfall (96 mm).

Comfort

Feels Like Cold
C
Temperature
15°

Weather

96 mm
Rainfall
4.8 m/s
Wind
Light Breeze

May

May is cool with highs of 21°C and lows of 9°C. Regular rainfall (88 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
21°

Weather

88 mm
Rainfall
4.4 m/s
Wind
Light Breeze

June

June is mild with highs of 26°C and lows of 14°C. Regular rainfall (88 mm).

Comfort

20°
Feels Like Mild
20°C
Temperature
14° 26°

Weather

88 mm
Rainfall
4.1 m/s
Wind
Light Breeze

July

July is the warmest month with highs of 30°C and lows of 17°C. Regular rainfall (85 mm).

Comfort

23°
Feels Like Mild
23°C
Temperature
17° 30°

Weather

85 mm
Rainfall
3.8 m/s
Wind
Light Breeze

August

August is mild with highs of 28°C and lows of 17°C. Regular rainfall (92 mm).

Comfort

23°
Feels Like Mild
23°C
Temperature
17° 28°

Weather

92 mm
Rainfall
3.7 m/s
Wind
Light Breeze

September

September is mild with highs of 24°C and lows of 12°C. Regular rainfall (93 mm).

Comfort

18°
Feels Like Mild
18°C
Temperature
12° 24°

Weather

93 mm
Rainfall
3.9 m/s
Wind
Light Breeze

October

October is cool with highs of 18°C and lows of 6°C. Regular rainfall (98 mm).

Comfort

12°
Feels Like Cool
12°C
Temperature
18°

Weather

98 mm
Rainfall
4.3 m/s
Wind
Light Breeze

November

November is cold with highs of 12°C and lows of 1°C. The wettest month with heavy rain (105 mm).

Comfort

Feels Like Cold
C
Temperature
12°

Weather

105 mm
Rainfall
4.5 m/s
Wind
Light Breeze

December

December is cold with highs of 5°C and lows of -4°C. Regular rainfall (100 mm).

Comfort

Feels Like Cold
C
Temperature
-4°

Weather

100 mm
Rainfall
4.8 m/s
Wind
Light Breeze

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