Washington weather

Our guide to the weather in Washington during August

31

Average high

7

UV Index

138mm

Monthly rainfall

70%

Humidity

We've looked at the most up-to-date weather data for Washington, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Washington weather in August.

How hot is it in Washington during August?

The temperature reaches around 31℃ during the daytime in August, falling away to 21℃ at night. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in Washington during August?

On average, there will be 6 rainy days during the month, amounting to 137.6mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Washington during August?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in August. With moderate humidity, any breeze will have a welcome cooling effect.

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Washington Blog posts

From the UK's most popular travel bloggers

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Top things to do in Washington DC during a weekend trip

20th August 2022 by TravelDave

The Capital Region of the United States of America consists of the states, of Maryland, Virginia and the capital, Washington D.C. Within this blog post, I’ll share with you my step-by-step travel guide on what to do in Washington D.C. The Capital Region is a Perfect location for a road trip across this unique part of the United States. In this part of my road trip, I will cover my suggestions for Washington D.C. over a weekend trip and show how easy it is to connect all the regions....

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Exploring Washington, D.C, Capital Region, USA

20th July 2022 by TravelDave

Let's explore Washington, D.C. the capital of the USA. This video was made whilst exploring the Capital Region on a road trip across Virginia, Washington D.C. and Maryland. The places that I visited on my trip to Washington, D.C. - Cambria Hotel Washington D.C. Capitol Riverfront - The Capitol Riverfront District - The Wharf and Navy Yard, Yards Park - GATSBY Restuarant - The National Mall - The Hirshorn Museum and Sculpture Garden - Washington Monument - United States...

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5 best cities to explore on two wheels

16th February 2021 by Paul

There are many different ways to travellers to explore different cities, but deciding to discover a new city on two wheels is one of the ways with the most advantages. Not only do you save money (goodbye city tour buses and expensive car rentals!) but you can pretty much reach any part of the city on your own terms while enjoying the pleasant weather. Of course, not all cities are bicycle-friendly, however. So we’ve put together a list of the 5 best cities in the world that are perfect...

Weather in Washington

Our month-by-month guide to the weather and climate in Washington

4.8

Washington weather in

January
7.3

Washington weather in

February
12.3

Washington weather in

March
18.6

Washington weather in

April
24.1

Washington weather in

May
29.0

Washington weather in

June
32.1

Washington weather in

July
31.1

Washington weather in

August
27.2

Washington weather in

September
20.5

Washington weather in

October
13.3

Washington weather in

November
8.3

Washington weather in

December