Castle Clinton Museum

19th-century fort in Battery Park, Manhattan landmark

Circular fort in Battery Park that housed early exhibitions and immigration processing; today a national monument offering harbor views, exhibits and proximity to Statue of Liberty and Ellis Island ferries.

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Castle Clinton at a Glance#

Address: Battery Park, New York, NY 10004, USA

Website: https://www.nps.gov/cacl/

Hours: Visitor center hours vary seasonally; National Park Service site open daily (check NPS for current hours)

Admission: Free entry to the grounds; certain exhibits or ranger programs may have fees

About Castle Clinton#

Castle Clinton is a small circular fort and national monument located in Battery Park at the southern tip of Manhattan, New York City, originally constructed in the early 19th century. It has served multiple civic roles, including coastal defense and later public functions.

The site preserves the stone fort’s circular plan and offers exhibits and interpretive material about its history. The location provides close views of New York Harbor and is frequently visited as part of the Battery Park public area.

Built as a coastal defensive work in the early 1800s, the structure later became a popular public entertainment space and, in the mid 19th century, served as New York’s immigration processing station known as Castle Garden. The building has since been restored and is managed as a National Park Service site.

Sited at the southern tip of Manhattan in Battery Park, the monument sits immediately inland from New York Harbor and faces the Statue of Liberty and Ellis Island across the water.

  • Views and photography: The fort sits at the southern tip of Manhattan with views across New York Harbor, making the outer walls a popular photo point for the Statue of Liberty and harbor scenes.
  • Visitor information: Free admission and curated interpretation by the National Park Service explain the site’s varied uses over two centuries, from coastal defense to immigration processing and public entertainment.

What to See#

  • Original fort: The original circular sandstone fort structure built as a coastal battery in the early 19th century, with a central parade area and surrounding embrasures.
  • Visitor centre and exhibits: Visitor facilities run by the National Park Service including an information desk and exhibits that interpret the site’s roles as a fortress, entertainment venue and immigration landing station.

How to Get to Castle Clinton#

Castle Clinton is in the southern tip of Manhattan’s Battery Park. It is accessible on foot from the Staten Island Ferry terminal, by subway (South Ferry 1 line, Bowling Green 4/5 lines, or Whitehall St), or by numerous downtown bus routes. The site is adjacent to the Battery and the Staten Island Ferry plaza.

Tips for Visiting Castle Clinton#

  • Arrive early to enjoy Battery Park and avoid cruise‑ship crowds; the monument occupies a compact island and nearby promenade.
  • Combine the visit with a stroll along the Battery and a ferry to the Statue of Liberty-views from Castle Clinton's front steps are classic Manhattan skyline photos.

Best Time to Visit Castle Clinton#

Spring and autumn offer pleasant weather and manageable crowds for visiting Battery Park and Castle Clinton.

Spring (Apr-Jun)
April-June · 10-25°C
Comfortable weather for walks around Lower Manhattan and the Battery.
Autumn (Sep-Nov)
September-November · 10-22°C
Crisp air and good light for photographing the fort and skyline; fewer summer tourists.

Weather & Climate near Castle Clinton#

Climate

Castle Clinton's climate is classified as Humid Subtropical - Humid Subtropical climate with warm summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -4°C to 29°C. Abundant rainfall (1193 mm/year), wettest in July, distributed fairly evenly throughout the year.

Air Quality: AQI 35 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
34°
Warmest Month
-14°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -4° - 4° -5° 95 mm partly cloudy 82% 4.8 m/s 0.2 low 9.5h
February Poor -3° - 5° -4° 77 mm partly cloudy 81% 4.9 m/s 0.4 low 10.5h
March Acceptable 1° - 10° 2° 104 mm partly cloudy 81% 5.0 m/s 0.7 moderate 11.8h
April Good 6° - 16° 11° 102 mm partly cloudy 82% 4.8 m/s 1.1 high 13.1h
May Very Good 11° - 22° 17° 110 mm partly cloudy 84% 4.2 m/s 1.4 high 14.3h
June Excellent 16° - 27° 21° 91 mm partly cloudy 83% 4.0 m/s 1.7 very high 14.8h
July Excellent 20° - 29° 25° 114 mm partly cloudy 80% 3.7 m/s 1.8 very high 14.6h
August Excellent 19° - 28° 24° 109 mm partly cloudy 78% 3.6 m/s 1.5 very high 13.6h
September Very Good 15° - 24° 20° 102 mm partly cloudy 77% 3.8 m/s 1.2 high 12.3h
October Very Good 9° - 18° 13° 91 mm partly cloudy 78% 4.0 m/s 0.6 moderate 11.0h
November Acceptable 4° - 13° 6° 103 mm partly cloudy 79% 4.5 m/s 0.3 low 9.8h
December Poor -1° - 7° -1° 95 mm partly cloudy 82% 4.7 m/s 0.2 low 9.2h

Nearby Attractions to Castle Clinton#