Reston Weather in August

Reston in August sees high temperatures, with highs around 30°C (86°F) and overnight lows of 19°C (66°F). Rainfall is fairly high at around 72 mm (2.8 in) on average, so pack waterproofs just in case.

Rainfall in Reston in August

You can expect rain on around 11 days based on historical patterns, with 72 mm (2.8 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Reston in August

Expect highs of 30°C (86°F) in Reston in August, with nights dropping to around 19°C (66°F). Overall, the month follows a fairly predictable daily temperature pattern. At 19°C (66°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Reston in August

With approximately 262 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, June and September typically offer the best weather for Reston.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Reston's climate page.

Reston Temperature in August

Min Temperature 19°C (66°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 37%  

Precipitation 72 mm (2.8 in)  

Rainy days 11 days  

Humidity 69% *  

Sunshine 262 hours *  

Percentage Sunshine 62% *  

* Data from: Washington DC, the United States of America (30 KM, 18 Miles).

What to Wear in Reston in August

Warm temperatures in August 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Reston in August

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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Reston's climate page.

More climate data for Reston

Temperature Rainfall Sunshine Humidity

See the full Reston climate overview or explore weather in the United States of America.