Assateague Island National Seashore in September
In September, Assateague Island National Seashore averages a high of 80°F and a low of 64°F, with 4.5 inches of precipitation (rain plus melted snow). About 236,000 people visit, the 4th busiest of 12 (moderate). Days are 12 hours 23 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 80° / 64°F
- Precipitation
- 4.5in
- Snow
- 0in
- Daylight
- 12h 23m
- Visitors
- 236,000
- Crowds
- Moderate
Best months for weather and crowds instead: April (moderate), May (moderate) and November (quiet).
Weather 1991–2020 averages at Assateague, MD, 2.5 miles from the park's center, 10 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Colonial National Historical Park | 81° / 63° | Very busy | Hot |
| George Washington Memorial Parkway | 81° / 64° | Busy | Hot |
| Thomas Jefferson Memorial | 81° / 64° | Quiet | Hot |
| World War I Memorial | 81° / 64° | Busy | Hot |
| Franklin Delano Roosevelt Memorial | 81° / 64° | Moderate | Hot |
Closures, reservations and alerts: Assateague Island National Seashore on nps.gov
All twelve months at Assateague Island National Seashore · National parks to visit in September