Ashburn Weather in September
September in Ashburn sees daytime temperatures around 30°C (86°F) and lows of 19°C (66°F) at night. With around 74 mm (2.9 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Ashburn in September
Looking at the last 30 years, the data shows about 10 days with rain, averaging 74 mm (2.9 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Ashburn in September
In September, Ashburn gets very high temperatures, with highs of 30°C (86°F). Nights cool to around 19°C (66°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. With lows of 19°C (66°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.If you prefer dry days with pleasant temperatures, March, May, October and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ashburn's climate page.
Ashburn Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
30°C (86°F)
Chance of Rain
33%
Precipitation
74 mm (2.9 in)
Rainy days
10 days
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Ashburn in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Ashburn in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ashburn's climate page.
See the full Ashburn climate overview or explore weather in the United States of America.
