August weather forecast and climate
Olympia, WA

The calm Capitol Lake overlooking the Washington State Capitol building in Olympia, Washington
The calm Capitol Lake overlooking the Washington State Capitol building in Olympia, Washington

What is the warmest month in Olympia?

The warmest month is August, with an average high-temperature of 77.7°F (25.4°C) and an average low-temperature of 50.5°F (10.3°C).

What is the temperature in August in Olympia?

The average high-temperature, in August, is 77.7°F (25.4°C), while the average low-temperature is 50.5°F (10.3°C).

How much does it rain in Olympia in August?

In Olympia, Washington, in August, it is raining for 4.9 days, with typically 0.9" (23.9mm) of accumulated precipitation.
Average temperature in August - Olympia, WA
  • Average high temperature in August: 25.4°C

The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is December (6.8°C).

  • Average low temperature in August: 10.3°C

The month with the highest average low temperature is July (10.4°C).
The coldest month (with the lowest average low temperature) is December (0.3°C).

Average humidity in August - Olympia, WA
  • Average humidity in August: 72.1%

The month with the highest relative humidity is December (89.1%).
The month with the lowest relative humidity is July (70.8%).

Average rainfall in August - Olympia, WA
  • Average rainfall in August: 23.9mm

The wettest month (with the highest rainfall) is November (219.2mm).
The driest month (with the lowest rainfall) is July (16mm).

Average rainfall days in August - Olympia, WA
  • Average rainfall days in August: 4.9 days

The month with the highest number of rainy days is November (20.1 days).
The month with the lowest number of rainy days is July (4.6 days).

Average snowfall in August - Olympia, WA
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (119.4mm).
Months with the lowest snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in August - Olympia, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.2 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August / Average sunshine in August - Olympia, WA
  • Average daylight in August: 14.2h

The month with the longest days is June (Average daylight: 15.8h).
The month with shortest days is December (Average daylight: 8.6h).

  • Average sunshine in August: 9h

The month with most sunshine is July (Average sunshine: 10h).
Months with least sunshine are January and December (Average sunshine: 2).

Average UV index in August - Olympia, WA
  • Average UV index in August: 7

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January, November and December (UV index 1).

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