San Juan National Historic Site in January
In January, San Juan National Historic Site averages a high of 83°F and a low of 72°F, with 4.1 inches of precipitation (rain plus melted snow). About 123,000 people visit, the 6th busiest of 12 (busy). Days are 11 hours 08 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 83° / 72°F
- Precipitation
- 4.1in
- Snow
- 0in
- Daylight
- 11h 8m
- Visitors
- 123,000
- Crowds
- Busy
January is one of the best months to visit: hot weather with busy crowds.
Higher or lower in the park, expect a different picture: Aibonito 1 S, PR at 2,330 ft averages a January high of 74°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 January
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Virgin Islands National Park | 84° / 74° | Very busy | Hot |
| Biscayne National Park | 78° / 63° | Busy | Mild |
| Everglades National Park | 76° / 58° | Very busy | Mild |
| Big Cypress National Preserve | 75° / 52° | Very busy | Mild |
| Dry Tortugas National Park | 74° / 65° | 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 January