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Ashburn weather in September (Virginia, United States of America)

How does the weather in Ashburn usually fare in September? This guide provides the necessary weather information for your travel plans.

Temperatures

The weather in Ashburn during September is typically perfect, with high temperatures and moderate rainfall. As the day progresses, temperatures can peak at 27°C. Luckily at nightfall, they typically drop to 15°C.

Precipitation

Ashburn in September usually receives moderate rainfall, averaging around 99 mm for the month. You can typically expect 10 days days of rain this month, based on climate records.

Average sunshine

Enjoy a sunny month with about 225 hours of sunshine, providing a cheerful and lively atmosphere.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. September generally stands out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Ashburn climate page with graphs.

 

Ashburn, monthly averages in September

Min TemperatureMin Temperature 15°C  
Max TemperatureMax Temperature 27°C  
Chance of RainChance of Rain 33%  
PrecipitationPrecipitation 99 mm  
Rainy daysRainy days 10 days  
HumidityHumidity 68% *  
SunshineSunshine 225 hours *  
Percentage SunshinePercentage Sunshine 60% *  
* Data from: Washington DC, the United States of America (44 KM, 27 Miles).

Where to go 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.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
9/10
Cycling
7/10
Walking
7/10
Camping
8/10
Outdoor sports
7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Ashburn.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.