Rockville Weather in August

August in Rockville averages 29°C (84°F) during the day and 19°C (66°F) at night. Quite a bit of rainfall is typical this month, with around 92 mm (3.6 in) on average. An umbrella is a good idea.

Rainfall in Rockville in August

Past climate data indicates that roughly 11 days will see rain, totalling around 92 mm (3.6 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Rockville in August

August is a good time to be in Rockville. Days are perfect, reaching 29°C (84°F), with nights around 19°C (66°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Rockville in August

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

If your ideal day consists of dry skies and pleasant temperatures, August typically offers the best circumstances for Rockville.

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

Rockville Temperature in August

Min Temperature 19°C (66°F)  

Max Temperature 29°C (84°F)  

Chance of Rain 37%  

Precipitation 92 mm (3.6 in)  

Rainy days 11 days  

Humidity 69% *  

Sunshine 262 hours *  

Percentage Sunshine 62% *  

* Data from: Washington DC, the United States of America (27 KM, 17 Miles).

What to Wear in Rockville in August

Warm but pleasant conditions in Rockville in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Rockville 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 Rockville's climate page.

More climate data for Rockville

Temperature Rainfall Sunshine Humidity

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