Bethesda Weather in August

August in Bethesda brings high temperatures, with daytime highs of 30°C (86°F) and nights around 19°C (66°F). Quite a bit of rainfall is expected, around 98 mm (3.9 in), so pack an umbrella.

Rainfall in Bethesda in August

Historically, August sees about 11 days of rain, with a monthly average of 98 mm (3.9 in). 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 Bethesda in August

Daytime highs in Bethesda in August reach 30°C (86°F), with nights around 19°C (66°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights drop to around 19°C (66°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Bethesda in August

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

Wind Speed in Bethesda in August

Wind speeds average 4 m/s (8 knots) during August. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

For Bethesda itself, April generally stands out with 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.

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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 Bethesda's climate page.

Bethesda Temperature in August

Min Temperature 19°C (66°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 37%  

Precipitation 98 mm (3.9 in)  

Rainy days 11 days  

Humidity 69% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 262 hours *  

Percentage Sunshine 62% *  

* Data from: Washington DC, the United States of America (15 KM, 9 Miles).

What to Wear in Bethesda in August

Warm but pleasant conditions in Bethesda 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Bethesda 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 Bethesda's climate page.

More climate data for Bethesda

Temperature Rainfall Sunshine Humidity Wind Speed

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