Weather in August in Washington State
Thinking about venturing to Washington State this August and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:
What is the weather like in Washington State in August?
Washington State is a region in the United States of America. In August, Washington State experiences a range of weather conditions, with temperatures that range from cold to very warm and precipitation levels ranging from almost none to moderate. During August, summer is in full swing.
Temperatures
During the day temperatures vary from cold in Mount Rainier National Park at 11°C to very warm in Pasco at 32°C. At night it cools down to 15°C in Pasco and -1°C in Mount Rainier National Park . In Washington State, August typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.
Precipitation
In August, precipitation varies across different areas. From almost no rainfall in Richland with an average of 2.6 mm to moderate rainfall in North Cascades National Park with 71 mm.Average sunshine
Meanwhile, Seattle enjoys approximately 280 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.For specific regional insights in Washington State for August, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Washington State climate page.
Where to go in Washington State in August
perfect weather
pleasant
tolerable
unpleasant
poor
Popular destinations
What is the weather like in August for the 5 most popular destinations in Washington State?
Seattle
In August Seattle generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 14°C and low monthly rainfall. So on average the conditions are perfect that month.
Max temperature
Max temp
Min temperature
Min temp
Monthly sun hours
Sun hours
Monthly rainfall
Rainfall
Monthly rainy days
Rainy days
Weather conditions
Weather
SeaTac
In August SeaTac generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 14°C and low monthly rainfall. So on average the conditions are perfect that month.
Max temperature
Max temp
Min temperature
Min temp
Monthly sun hours
Sun hours
Monthly rainfall
Rainfall
Monthly rainy days
Rainy days
Weather conditions
Weather
Ocean Shores
In August Ocean Shores generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 12°C and moderate monthly rainfall. So on average the conditions are pleasant that month.
Max temperature
Max temp
Min temperature
Min temp
Monthly rainfall
Rainfall
Monthly rainy days
Rainy days
Weather conditions
Weather
Bellevue
In August Bellevue generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 14°C and low monthly rainfall. So on average the conditions are perfect that month.
Max temperature
Max temp
Min temperature
Min temp
Monthly sun hours
Sun hours
Monthly rainfall
Rainfall
Monthly rainy days
Rainy days
Weather conditions
Weather
Vancouver
In August Vancouver generally has high temperatures with maximum daytime temperatures around 27°C, minimum nighttime temperatures around 14°C and low monthly rainfall. So on average the conditions are perfect that month.
Max temperature
Max temp
Min temperature
Min temp
Monthly sun hours
Sun hours
Monthly rainfall
Rainfall
Monthly rainy days
Rainy days
Weather conditions
Weather
Is your destination not in the list? Have a look at other destinations in Washington State, in the United States of America.
Is August the best time to visit Washington State?
We consider August to be one of the best times to travel to Washington State. Typically, the climate in Seattle is perfect. However, the weather conditions may vary depending on your destination.
Generally speaking, June, July, August and September provide perfect weather in Seattle. On the other hand, the months of January, February, March, November and December tend to have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Washington State.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.