Fort Matanzas National MonumentAbout Fort Matanzas National Monument
Fort Matanzas National Monument preserves an 18th-century Spanish masonry fort that guarded the southern inlet to St. Augustine, Florida. The fort is a compact masonry tower built in the 1740s to control access through the Matanzas River.
The monument includes a small visitor center on the mainland and the fort itself on a barrier island; the fort interior and the grounds are part of guided tours led by park staff. The site highlights Spanish colonial military architecture and coastal defense strategies of the 18th century.
The fort was constructed by Spanish colonial authorities in the early 1740s following conflicts with British forces in the region and remained a coastal defensive post through the colonial period. In the 20th century it was designated and preserved as a national monument to protect the structure and interpret its history.
Fort Matanzas sits on a small island in the Matanzas River about 14 miles south of downtown St. Augustine. Visitors reach the fort by a short ferry ride from the park visitor center across tidal marsh and river channels.
- Access: Access to the fort is by a National Park Service ferry from the visitor center, with the crossing taking roughly 10-15 minutes each way.
- Interpretation: The site preserves an 18th-century Spanish coastal fort built to guard the southern approach to St. Augustine, and ranger-led programs interpret its history.
Best Time to Visit Fort Matanzas National Monument
Best visited in spring or fall for mild weather and fewer crowds while enjoying the coastal setting.
Weather & Climate near Fort Matanzas National Monument
Subtropical climate with hot summers (peaking in July) and cool winters (coldest in January). Temperatures range from 8°C to 32°C. Abundant rainfall (1255 mm/year), wettest in August.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | 8° - 19° | 14° | 77 mm | - | - | 4.3 m/s | - | - |
| February | - | 9° - 20° | 15° | 89 mm | - | - | 4.5 m/s | - | - |
| March | - | 12° - 23° | 18° | 93 mm | - | - | 4.4 m/s | - | - |
| April | - | 15° - 26° | 20° | 59 mm | - | - | 4.3 m/s | - | - |
| May | - | 18° - 29° | 23° | 87 mm | - | - | 4.1 m/s | - | - |
| June | - | 21° - 31° | 26° | 149 mm | - | - | 3.8 m/s | - | - |
| July | - | 22° - 32° | 27° | 149 mm | - | - | 3.5 m/s | - | - |
| August | - | 23° - 31° | 27° | 165 mm | - | - | 3.5 m/s | - | - |
| September | - | 22° - 30° | 26° | 164 mm | - | - | 4.0 m/s | - | - |
| October | - | 18° - 27° | 23° | 92 mm | - | - | 4.3 m/s | - | - |
| November | - | 14° - 23° | 19° | 62 mm | - | - | 4.2 m/s | - | - |
| December | - | 10° - 20° | 15° | 69 mm | - | - | 4.2 m/s | - | - |
How to Get to Fort Matanzas National Monument
Fort Matanzas National Monument sits on the Matanzas River about 14 miles (≈22 km) south of historic St. Augustine. The visitor center and ferry launch are on State Road A1A; most visitors drive from St. Augustine via A1A (about 20-30 minutes) and park at the monument lot.
From the visitor center a short walk (a few minutes) brings you to the ferry that crosses to the island fort. There is no regular public-transit stop immediately at the monument, so car, taxi, or tour are the usual ways to reach it.
Tips for Visiting Fort Matanzas National Monument
- Arrive at opening and catch one of the first free shuttle/ferry runs from the visitor center to the island - the boat is the only way onto the fort and early departures avoid the midday heat and insect activity.
- Use the National Park Service visitor center as your entry point and check the posted ranger program times; the short guided talks and living-history demos add context and fill quickly, so plan around them.
- After touring the fort, follow the short marsh boardwalk and nature trails-many visitors skip these viewpoints, which offer better photo angles of Matanzas Inlet and local birdlife than the fort interior.