Castillo de San Marcos National Monument
Hours
See this week's hours below.
- Entrance fee
- $15 · per person
- Phone
- 9048296506
- Address
- 11 South Castillo Drive, Saint Augustine, FL 32084
About Castillo de San Marcos
Built by the Spanish in St. Augustine to defend Florida and the Atlantic trade route, Castillo de San Marcos National Monument preserves the oldest masonry fortification in the continental United States and interprets more than 450 years of cultural intersections.
Hours
Castillo de San Marcos National Monument
The Castillo de San Marcos is open to the public 7 days per week, except Thanksgiving Day (fourth Thursday in November) and Christmas Day (December 25). A maximum capacity of 100 visitors in the historic fort at any time will be in effect. First admission is at 9:00 a.m. and last admission is at 5:00 p.m. The Castillo closes and visitors must exit at 5:15 p.m. The park grounds are closed from midnight until 5:30 a.m.
| Monday | 9:00 AM to 5:00 PM |
|---|---|
| Tuesday | 9:00 AM to 5:00 PM |
| Wednesday | 9:00 AM to 5:00 PM |
| Thursday | 9:00 AM to 5:00 PM |
| Friday | 9:00 AM to 5:00 PM |
| Saturday | 9:00 AM to 5:00 PM |
| Sunday | 9:00 AM to 5:00 PM |
Entrance fees
| Per Person | $15 | The Castillo de San Marcos is considered to be a "walk-in" park. The entrance fee applies to each individual. Tickets are not transferable and cannot be given to other guests. Adults (Age 16 and above) entrance is $15.00 and valid for 7 consecutive days. Children (age 15 and under) are admitted free of charge but must be accompanied by an adult. |
|---|
An America the Beautiful pass covers the entrance fee at every site that charges one.
Getting there
On State Route A1A overlooking Matanzas Bay in the heart of the historic district of Saint Augustine, the Castillo is approximately a five mile drive from Interstate 95.
Weather
St. Augustine has a semi-tropical climate with over 300 days of sunshine each year. Summers (May-September) are hot, bright, and humid with afternoon thunderstorms common. Temperatures range from the lower 70s to the mid 90s F. Spring (March-mid-May) and Autumn (October-late November) can be pleasant with temperatures ranging from the upper 50s into the 80s F. The Winter months (December-March) are usually dry. Temperatures can be cool ranging from the upper 30s through the 60sF.
Things to do
Historic Weapons Demonstration, Junior Ranger Program, Living History, Park Film.
Source: National Park Service data feed, checked September 24, 2026. Hours shown are the Park Service's posted standard hours plus any date changes it lists. Official page for Castillo de San Marcos ↗