Cape Cod National Seashore in August
In August, Cape Cod National Seashore averages a high of 78°F and a low of 64°F, with 3.0 inches of precipitation (rain plus melted snow). About 670,000 people visit, the busiest month. Days are 13 hours 52 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 78° / 64°F
- Precipitation
- 3.0in
- Snow
- –in
- Daylight
- 13h 52m
- Visitors
- 670,000
- Crowds
- Very busy
Best months for weather and crowds instead: May (moderate), June (busy) and September (busy).
Weather 1991–2020 averages at Chatham Muni AP, MA, 25.5 miles from the park's center, 68 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in August
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Boston National Historical Park | 80° / 65° | Very busy | Hot |
| Acadia National Park | 78° / 60° | Very busy | Mild |
| Gateway National Recreation Area | 82° / 68° | Very busy | Hot |
| Stonewall National Monument | 83° / 69° | Few or no visits | Hot |
| Castle Clinton National Monument | 83° / 69° | Very busy | Hot |
Closures, reservations and alerts: Cape Cod National Seashore on nps.gov
All twelve months at Cape Cod National Seashore · National parks to visit in August