Union Square (Washington, D.C.)

Park Public plaza on Capitol grounds near museums

Plaza immediately east of the U.S. Capitol used for rallies, public gatherings and as formal green space. Tourists visit for close Capitol views, occasional events and proximity to National Mall museums.

Flickr - USCapitol - U.S. Capitol and Reflecting Pool.jpg
Third Street Tunnel - Washington, D.C..jpg
Union Square (Washington, D.C.)
Union Square (near Union Station and the U.S. Capitol), Washington, D.C., United States
38.8896, -77.0144
Open public space (hours vary with events)

How to Get to Union Square (Washington, D.C.) #

Union Square is adjacent to Union Station and a short walk from the U.S. Capitol. Use Metro (Union Station on the Red Line) or bus routes that serve the Capitol Hill area.

Tips for Visiting Union Square (Washington, D.C.) #

  • Union Square near the U.S. Capitol is a useful waypoint for visitors heading toward the National Mall and Smithsonian museums.
  • Security checkpoints and special event closures occur; check National Park Service notices for event schedules.

Best Time to Visit Union Square (Washington, D.C.) #

Spring and autumn offer the most comfortable visits for central D.C. public spaces.

Spring
April-June · 10-25°C
Comfortable weather and flowering trees near the Mall.
Autumn
September-November · 8-22°C
Milder temperatures and fewer summer crowds.

Weather & Climate near Union Square (Washington, D.C.) #

Climate

Union Square (Washington, D.C.)'s climate is classified as Humid Subtropical - Humid Subtropical climate with hot summers (peaking in July) and cold winters (coldest in January). Temperatures range from -4°C to 32°C. Abundant rainfall (1048 mm/year), wettest in May, distributed fairly evenly throughout the year.

Temperature & Rainfall
Temperature Range
32°
Warmest Month
-4°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 6°C and lows of -4°C. Regular rainfall (80 mm).

Comfort

Feels Like Cold
C
Temperature
-4°

Weather

80 mm
Rainfall
3.5 m/s
Wind
Light Breeze

February

February is cold with highs of 8°C and lows of -2°C. Moderate rainfall (69 mm).

Comfort

Feels Like Cold
C
Temperature
-2°

Weather

69 mm
Rainfall
3.7 m/s
Wind
Light Breeze

March

March is cold with highs of 13°C and lows of 2°C. Regular rainfall (92 mm).

Comfort

Feels Like Cold
C
Temperature
13°

Weather

92 mm
Rainfall
4.0 m/s
Wind
Light Breeze

April

April is cool with highs of 19°C and lows of 7°C. Moderate rainfall (78 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
19°

Weather

78 mm
Rainfall
3.9 m/s
Wind
Light Breeze

May

May is mild with highs of 25°C and lows of 12°C. The wettest month with heavy rain (104 mm).

Comfort

19°
Feels Like Mild
19°C
Temperature
12° 25°

Weather

104 mm
Rainfall
3.2 m/s
Wind
Light Breeze

June

June is mild with highs of 29°C and lows of 17°C. Regular rainfall (87 mm).

Comfort

23°
Feels Like Mild
23°C
Temperature
17° 29°

Weather

87 mm
Rainfall
3.1 m/s
Wind
Light Breeze

July

July is the warmest month with highs of 32°C and lows of 20°C. Significant rainfall (101 mm).

Comfort

26°
Feels Like Warm
26°C
Temperature
20° 32°

Weather

101 mm
Rainfall
2.8 m/s
Wind
Calm

August

August is warm with highs of 31°C and lows of 19°C. Regular rainfall (96 mm).

Comfort

25°
Feels Like Warm
25°C
Temperature
19° 31°

Weather

96 mm
Rainfall
2.7 m/s
Wind
Calm

September

September is mild with highs of 27°C and lows of 15°C. Regular rainfall (95 mm).

Comfort

21°
Feels Like Mild
21°C
Temperature
15° 27°

Weather

95 mm
Rainfall
2.9 m/s
Wind
Calm

October

October is cool with highs of 21°C and lows of 9°C. Regular rainfall (83 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
21°

Weather

83 mm
Rainfall
2.9 m/s
Wind
Calm

November

November is cold with highs of 15°C and lows of 4°C. Regular rainfall (83 mm).

Comfort

Feels Like Cold
C
Temperature
15°

Weather

83 mm
Rainfall
3.3 m/s
Wind
Light Breeze

December

December is cold with highs of 9°C and lows of -1°C. Regular rainfall (80 mm).

Comfort

Feels Like Cold
C
Temperature
-1°

Weather

80 mm
Rainfall
3.4 m/s
Wind
Light Breeze

Nearby Attractions to Union Square (Washington, D.C.)