Manassas National Battlefield Park in September
September at Manassas National Battlefield Park averages a daytime high near 78°F and an overnight low around 58°F. Visitation runs about 1.2× the park's average month, which makes September a busy month here.
- Average low
- 58°F
- Average high
- 78°F
Range across the year: 24°F to 88°F
- Daylight
- 12.2 hours
Roughly 10% of the park's yearly visitors come in September: about 52,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 3rd-busiest of the park's twelve months, sitting between the April peak (1.3×) and the January low (0.5×).
On our Best Time to Visit score September rates 60/100 ("Good"). Our recommended month is May: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 68°F is a comfortable range for hiking and being outdoors all day. These figures are 1991–2020 NOAA climate normals from the nearest station, about 6.2 miles from the park.
Because June, July and August together draw about 30% of annual visitors, choosing September instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 12.2 hours of daylight in September to explore — between the 9.3-hour midwinter low and the 14.7-hour summer high.
Park-wide, 2025 drew 473,482 recreation visits, down 12.6% from 541,965 in 2024.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 85°F / 67°F | 1.1× Average | 55 Fair |
| September | 78°F / 58°F | 1.2× Busy | 60 Good |
| October | 67°F / 46°F | 1.1× Average | 47 Fair |
All twelve months at Manassas, with the best time to visit.
Things to do at Manassas in September
The National Park Service tags 9 Manassas activities for fall. Here are 8 of them. Each links to the park's own page for it.
- Brawner Farm Loop Trail · 45-75 minutes
- Chinn Ridge Trail · 45-70 minutes
- First Manassas Trail · 2-4 hours
- Henry Hill Loop Trail · 30-90 minutes
- Matthews Hill Loop Trail · 30-90 minutes
- Second Manassas Trail · 3-4 hours
- Stone Bridge Loop Trail · 45-60 minutes
- Sudley Loop Trail · 15-60 minutes
Frequently Asked Questions
September averages a daytime high near 78°F and an overnight low around 58°F at Manassas National Battlefield Park. These are 1991–2020 NOAA climate normals from the nearest station, about 6.2 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is busy at Manassas National Battlefield Park (about 1.2× the average month). Our best-time score rates it "Good" at 60/100. Our recommended month is May.
The busiest month is April and the quietest is January. September sits at about 1.2× the park's average, or 10% of annual visitation.
A typical September sees about 52,000 recreation visits at Manassas National Battlefield Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Manassas in September
Booking a September trip to Manassas National Battlefield Park? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Manassas
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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See the full ranking of the best national parks to visit in September.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.