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United StatesThe weather in August in Washington D.C.
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.
Looking for sun? August isn’t a good month to be in Washington D.C.. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Washington D.C., United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 42°C in 2023, Washington D.C. reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 22°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 12°C to a highest value of 28°C.
Rainfall amount
In August, there is an average of 116 mm of precipitation, spread over 14 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in August for Washington D.C.
Click on any day in August to get detailed info about the usual weather on that day in Washington D.C.. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Washington D.C. | New York | |
|---|---|---|
| Average temperature | 32°C | 30°C |
| Max. temperature | 33°C | 31°C |
| Min. temperature | 20°C | -5°C |
| Total precipitation | 116 mm | 79 mm |
| Rainy days | 14 days | 13 days |
Start of August
The month of August starts in Washington D.C. with hot temps, averaging around 32°C during the day and nights around 23°C.
Mid August
By mid-August, daytime temps stay steady at around 32°C, with nights around 22°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of August
By the end of August, the average daytime temperature in Washington D.C. is around 32°C, while nighttime temps are about 22°C. A shower might pop up, but overall, the weather will be dry and sunny.
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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.
Check out the climate of Washington D.C. for all months and discover the best travel time
Curious about the weather in other parts of United States? Check out the climate and weather for spots like New York City, Miami, Los Angeles, or explore other destinations in United States.
Temperature charts
These charts show the average temperatures in August in Washington D.C., United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Washington D.C.
Temperature in August in Washington D.C. over the years
Precipitation charts
These charts show the average amount of precipitation in August in Washington D.C., United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Washington D.C.
Total precipitation in August in Washington D.C. over the years
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.
Weather experiences in August in Washington D.C.
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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.