San Juan National Historic Site in March
In March, San Juan National Historic Site averages a high of 85°F and a low of 72°F, with 2.2 inches of precipitation (rain plus melted snow). About 162,000 people visit, the busiest month. Days are 11 hours 59 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 85° / 72°F
- Precipitation
- 2.2in
- Snow
- 0in
- Daylight
- 11h 59m
- Visitors
- 162,000
- Crowds
- Very busy
Best months for weather and crowds instead: January (busy) and February (busy).
Higher or lower in the park, expect a different picture: Aibonito 1 S, PR at 2,330 ft averages a March high of 76°F and a low of 62°F.
Weather 1991–2020 averages at San Juan L M Marin AP, PR, 7.6 miles from the park's center, 9 ft. Second station higher up: Aibonito 1 S, PR, 2,330 ft, 25.3 miles. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in March
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Virgin Islands National Park | 85° / 74° | Very busy | Hot |
| Biscayne National Park | 81° / 67° | Very busy | Hot |
| Everglades National Park | 81° / 62° | Very busy | Hot |
| Big Cypress National Preserve | 81° / 57° | Very busy | Hot |
| Dry Tortugas National Park | 79° / 68° | Very busy | Mild |
Closures, reservations and alerts: San Juan National Historic Site on nps.gov
All twelve months at San Juan National Historic Site · National parks to visit in March