Temperatures in August
It's hot in August in Washington D.C. with an average temperature of 32°C. Temperatures this month range from a low of 30°C to a high of 33°C. At night, you can expect temperatures between 20°C and 24°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Washington D.C. in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Washington D.C. with hot temperatures, averaging around 32°C during the day and nights close to 23°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-August
By mid-August, the average daytime temperature stays the same at 32°C, with nights close to 22°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of August
By the end of August, the average daytime temperature in Washington D.C. will be around 32°C, with nights close to 22°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in August
In August, there is an average of 116 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 28% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Washington D.C.. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Washington D.C. in August |
London | ||
|---|---|---|---|
 Average Temperature |
32°C | 22°C | |
 High Temp |
33°C | 24°C | |
| Low Temp |
30°C | 19°C | |
 Total Precipitation |
116 mm | 60 mm | |
| Rainy Days |
9 days | 10 days | |
July
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is August a good time to visit Washington D.C.?
After some sun? Then August isn’t the best time to be in Washington D.C.. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Washington D.C. in August
With 42°C, Washington D.C. hit the highest temperature in the last 10 years in August 2023. The lowest daytime temperature in this month was 22°C in 2015. The extreme night temperatures ranged from a low of 12°C to a high of 28°C.
Check out the climate of Washington D.C. for all months and discover the best travel time
Curious about the climate in other parts of United States? Check out the weather and climate in places like New York City, Miami, Los Angeles, or have a look at other destinations in United States.
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Daily Temperature in August in Washington D.C.
This chart shows the average daily temperatures, both day and night, for each day in August in Washington D.C., measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in August in Washington D.C.
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Washington, D.C., was hot and humid in August, with temperat... more
Daily Precipitation in August in Washington D.C.
The chart below shows the average daily precipitation in August for Washington D.C., measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 9 days of rain in Washington D.C..
Daily UV Index in August in Washington D.C.
This chart shows the average daily UV index in August in Washington D.C., with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Washington D.C. Over the Years
This chart shows the average temperature in August in Washington D.C., measured in degrees Celsius, over the past years.
Total Precipitation in August in Washington D.C. Over the Years
This chart shows the average precipitation in August in Washington D.C., measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Washington D.C.
Click on a specific day in August for detailed info on the typical weather on that day in Washington D.C.. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Washington D.C.
The weather in August in Washington D.C. is rated 3 out of 5 stars by 1 visitor. Have you been to Washington D.C.? Share your weather experience to help other visitors.
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Washington, D.C., was hot and humid in August, with temperatures often exceeding 30 degrees. Although it was nice and sunny, the high humidity sometimes made it uncomfortable. Get ready for hot days!— This text is automatically translated to English
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Average Weather in Washington D.C. by Month
Click on a month below to see detailed weather info for Washington D.C.. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Washington D.C. for all months at once
