World War I Memorial in September
In September, World War I Memorial averages a high of 81°F and a low of 64°F, with 3.9 inches of precipitation (rain plus melted snow). About 75,000 people visit, the 8th busiest of 12 (busy). Days are 12 hours 24 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 81° / 64°F
- Precipitation
- 3.9in
- Snow
- 0in
- Daylight
- 12h 24m
- Visitors
- 75,000
- Crowds
- Busy
Best months for weather and crowds instead: April (very busy) and November (busy).
Weather 1991–2020 averages at Washington Reagan AP, VA, 3.3 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 |
|---|---|---|---|
| World War II Memorial | 81° / 64° | Busy | Hot |
| Vietnam Veterans Memorial | 81° / 64° | Moderate | Hot |
| Martin Luther King, Jr., Memorial | 81° / 64° | Moderate | Hot |
| Korean War Veterans Memorial | 81° / 64° | Busy | Hot |
| Franklin Delano Roosevelt Memorial | 81° / 64° | Moderate | Hot |
Closures, reservations and alerts: World War I Memorial on nps.gov
All twelve months at World War I Memorial · National parks to visit in September