August weather forecastOlympia, WA
August
Weather in August
August is another prime summer month in Olympia, with the weather mostly remaining warm. Despite the occasional cloudy day, sunshine dominates the month, providing ample opportunities for outdoor activities. Rainfall increases slightly, but only to 0.47" (12mm), maintaining the trend of summer dryness. The weather remains consistently warm, adding to the enjoyment of picnics, festivals, and other outdoor events. As the month concludes, Olympia prepares to welcome the cooler weather of autumn.Temperature
August, known for its average high temperature of 78.6°F (25.9°C) and an average low temperature of 50.5°F (10.3°C), is the warmest month.Humidity
The average relative humidity in August in Olympia is 73%.Rainfall
In Olympia, during August, the rain falls for 5.5 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Olympia, during the entire year, the rain falls for 177.4 days and collects up to 37.05" (941mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In August, the average length of the day is 14h and 10min.On the first day of August in Olympia, sunrise is at 5:52 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:52 pm PDT.
Sunshine
The month with the most sunshine in Olympia is August, with an average of 10.2h of sunshine.UV index
In August, the average daily maximum UV index in Olympia is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 4 in August translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Olympia, WA
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in August: 50.5°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure in August
Olympia, WA
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in August
Olympia, WA
- Average wind speed in August: 4mph
The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in August
Olympia, WA
- Average humidity in August: 73%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).
Average rainfall in August
Olympia, WA
- Average rainfall in August: 0.47"
The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in August
Olympia, WA
- Average rainfall days in August: 5.5 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in August
Olympia, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
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 (3.3 days).
The months with the least 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: 14h and 12min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in August
Olympia, WA
- Average sunshine days in August: 22.4 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in August
Olympia, WA
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Olympia, WA
- Average cloud cover in August: 35
The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in August
Olympia, WA
- Average visibility in August: 5mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).
