August weather forecastTukwila, WA
August
Weather in August
The last month of the summer, August, is another warm month in Tukwila, Washington, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 77.7°F (25.4°C).Temperature
The average temperatures reach their apex in August, averaging 77.7°F (25.4°C) at the high end and 53.6°F (12°C) at the low end.Humidity
In Tukwila, the average relative humidity in August is 69%.Rainfall
In Tukwila, in August, it is raining for 5.7 days, with typically 0.47" (12mm) of accumulated precipitation. In Tukwila, Washington, during the entire year, the rain falls for 138.2 days and collects up to 14.09" (358mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in August in Tukwila, Washington, is 14h and 11min.On the first day of August in Tukwila, Washington, sunrise is at 5:48 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:50 pm PDT.
Sunshine
August has the most sunshine of the year in Tukwila, Washington, with an average of 10.7h of sunshine.UV index
The months with the highest UV index in Tukwila are June through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 during August translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Tukwila, WA
- Average high temperature in August: 77.7°F
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in August: 53.6°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in August
Tukwila, WA
- Average pressure in August: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in August
Tukwila, WA
- Average wind speed in August: 3.6mph
The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are July and August (3.6mph).
Average humidity in August
Tukwila, WA
- Average humidity in August: 69%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (68%).
Average rainfall in August
Tukwila, WA
- Average rainfall in August: 0.47"
The wettest month (with the highest rainfall) is December (2.2").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in August
Tukwila, WA
- Average rainfall days in August: 5.7 days
The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is August (5.7 days).
Average snowfall in August
Tukwila, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Tukwila, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.4 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
Tukwila, WA
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 10h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in August
Tukwila, WA
- Average sunshine days in August: 22.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (13 days).
Average UV index in August
Tukwila, WA
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Tukwila, WA
- Average cloud cover in August: 26
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in August
Tukwila, WA
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
