Chantilly Weather in August

Chantilly in August sees very high daytime temperatures of 30°C (86°F) and nighttime lows of 19°C (66°F). Rainfall is fairly high this month at around 82 mm (3.2 in), so pack a rain jacket to stay dry.

Rainfall in Chantilly in August

The climate data from previous years indicates about 12 days of rain, averaging 82 mm (3.2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Chantilly in August

August in Chantilly sees highs of 30°C (86°F) and lows of 19°C (66°F) overnight. It's usually most comfortable outside during the morning and later in the day. 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 Chantilly in August

The city usually sees around 262 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If you prefer dry days with pleasant temperatures, April, May, June, September and October 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.

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 Chantilly's climate page.

Chantilly Temperature in August

Min Temperature 19°C (66°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 39%  

Precipitation 82 mm (3.2 in)  

Rainy days 12 days  

Humidity 69% *  

Sunshine 262 hours *  

Percentage Sunshine 62% *  

* Data from: Washington DC, the United States of America (34 KM, 21 Miles).

What to Wear in Chantilly 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. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Chantilly 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 Chantilly's climate page.

More climate data for Chantilly

Temperature Rainfall Sunshine Humidity

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