Early autumn · Weather & things to do
Williamsburg in September
Williamsburg cools off: highs slip to 81°F (27°C), from 88°F in August, with lows of 63°F (17°C) and about 4.8 in (121 mm) of rain.
It scores 77/100 for comfort, 5th of 12, which makes it a solid shoulder-season month.
- Avg high
- 81°F (27°C)
- Avg low
- 63°F (17°C)
- Rain
- 4.8 in (121 mm)
- Humidity
- 76%
- Cloud cover
- 52%
- Daylight
- ~12 h 13 min
- Comfort score
- 77/100 · Great
What September feels like
Highs settle around 81°F (27°C), warm enough for short sleeves.
Nights cool to an average low of 63°F (17°C).
Humidity averages 76%, so the air feels sticky and the heat feels stronger than the thermometer says.
Rain is a real factor, with about 4.8 in (121 mm) across the month.
Plan around September
September is shoulder season: good weather, a step below the best months (April and October).
- Inside the wettest three-month stretch, July – September.
- Humidity season begins: 76% on average, up from 73% in August.
- Comfort improves from 62/100 in August to 77/100.
- Our Williamsburg & Richmond route is planned for Late Nov – Dec, a window set by the holiday season rather than the weather — September falls outside it.
What to pack for September
- Light, breathable clotheshighs average 81°F
- Quick-dry fabrics76% average humidity
- Rain jacket and waterproof shoes4.8 in of rain on average
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Williamsburg in September
September is good outdoor weather here, so these picks lean toward the open air.
Governor's Palace
Reconstructed residence of Virginia's royal governors at the head of the Palace Green, with formal gardens and a maze.
Why now September scores 77/100 for comfort, good conditions for being outside.
Busch Gardens Christmas Town
Busch Gardens Williamsburg's winter event, with millions of lights, holiday shows and Santa's workshop across the European-themed park.
Why now Highs near 81°F and 4.8 in of monthly rain make this an easy outdoor pick.
Wren Building
The College of William & Mary's oldest building, begun in 1695, closing the west end of Duke of Gloucester Street.
Why now One to do outside while the weather is on your side.
Merchants Square
Colonial Revival shopping street at the edge of the Historic Area, with shops, cafes and The Cheese Shop.
Grand Illumination
Colonial Williamsburg's opening of the Christmas season, with candles in windows, music across the Historic Area and fireworks.
Nearby in September
- Richmond in September~44 mi · highs 82°F, 4.6 in rain · similar daytime temperatures, about as wet
- Corolla in September~78 mi · highs 76°F, 5.7 in rain · 3°C (5°F) cooler by day, wetter
- Nags Head in September~109 mi · highs 77°F, 6.1 in rain · 2°C (4°F) cooler by day, wetter
- Washington, DC in September~114 mi · highs 80°F, 4.2 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Williamsburg in September: quick answers
Is September a good time to visit Williamsburg?
It's a good shoulder-season choice, scoring 77/100 against a best of 86 in April and October. Expect highs of 81°F (27°C) and 4.8 in (121 mm) of rain.
How hot is Williamsburg in September?
Average highs are 81°F (27°C) and average lows 63°F (17°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Williamsburg in September?
Yes: about 4.8 in (121 mm) of rain falls across September on average, the 3rd-wettest month of the year. The annual total is about 47.2 in (1199 mm).
What should I pack for Williamsburg in September?
Bring light, breathable clothes (highs average 81°F), quick-dry fabrics (76% average humidity), rain jacket and waterproof shoes (4.8 in of rain on average) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Williamsburg
Planning Williamsburg in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.