Fort Point National Historic Site in September
In September, Fort Point National Historic Site averages a high of 70°F and a low of 56°F, with 0.1 inches of precipitation (rain plus melted snow). About 104,000 people visit, the 2nd busiest of 12 (very busy). Days are 12 hours 23 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 70° / 56°F
- Precipitation
- 0.1in
- Snow
- –in
- Daylight
- 12h 23m
- Visitors
- 104,000
- Crowds
- Very busy
Best months for weather and crowds instead: May (busy), June (very busy) and July (very busy).
Higher or lower in the park, expect a different picture: Mt Diablo Junction, CA at 2,170 ft averages a September high of 80°F and a low of 60°F.
Weather 1991–2020 averages at San Francisco Dwtn, CA, 3.7 miles from the park's center, 150 ft. Second station higher up: Mt Diablo Junction, CA, 2,170 ft, 30 miles. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| San Francisco Maritime National Historical Park | 70° / 56° | Busy | Mild |
| Golden Gate National Recreation Area | 82° / 53° | Very busy | Hot |
| Point Reyes National Seashore | 66° / 51° | Very busy | Mild |
| Pinnacles National Park | 92° / 48° | Moderate | Very hot |
| Yosemite National Park | 83° / 51° | Very busy | Hot |
Closures, reservations and alerts: Fort Point National Historic Site on nps.gov
All twelve months at Fort Point National Historic Site · National parks to visit in September