Chehalis Weather in August

What's the weather like in Chehalis (Washington) in August 2024?

The climate in Chehalis during August can be summarized as warm and reasonably dry.

August is in the summer in Chehalis and is typically the warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 11°C (52°F) is normal.

Chehalis weather averages (imperial / metric)
Daytime temperature 25.1°C 77.1°F
Nightly temperature 11°C 51.7°F
Average temperature 18°C 64.4°F
Daily sunshine 9.7 hrs
Avg rainfall 36 mm 1.4 ins
Rainy days 6 days
Sea temperature 13.4°C 56.2°F
Humidity 71%
Windspeed 11.9kph 7 mph

On average August is the 2nd driest month of the year in Chehalis with around 36mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.7 hours of sunshine per day.

August temperatures in Chehalis

Chehalis average temperature in August

August rainfall

Chehalis average rain in August

August hourly sunshine

Chehalis average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Chehalis in August 2024.