August weather forecastTumtum, WA
August
Weather in August
August, the last month of the summer in Tumtum, is another warm month, with an average temperature ranging between min 54.3°F (12.4°C) and max 84°F (28.9°C).Temperature
Tumtum experiences its highest average temperatures in August, reaching a peak of 84°F (28.9°C) and a minimum of 54.3°F (12.4°C).Heat index
The heat index in August is appraised at 84.2°F (29°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
August is the least humid month, with an average relative humidity of 43%.Rainfall
The month with the least rainfall is August, when the rain falls for 5.1 days and typically collects 0.31" (8mm) of precipitation.Snowfall
June through August are months without snowfall.Daylight
The average length of the day in August is 14h and 14min.On the first day of the month, sunrise is at 5:28 am and sunset at 8:25 pm. On the last day of August, sunrise is at 6:08 am and sunset at 7:32 pm PDT.
Sunshine
August has the most sunshine of the year, with an average of 12h of sunshine.UV index
In Tumtum, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Exercise prevention - Warding off sunburn is urged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Tumtum, WA
- Average high temperature in August: 84°F
The warmest month (with the highest average high temperature) is August (84°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in August: 54.3°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in August
Tumtum, WA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in August
Tumtum, WA
- Average wind speed in August: 4.7mph
The windiest month (with the highest average wind speed) is April (5.6mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in August
Tumtum, WA
- Average humidity in August: 43%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (43%).
Average rainfall in August
Tumtum, WA
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is January (2.4").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in August
Tumtum, WA
- Average rainfall days in August: 5.1 days
The month with the highest number of rainy days is March (16.2 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in August
Tumtum, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (13.23").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Tumtum, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Tumtum, WA
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Tumtum, WA
- Average sunshine days in August: 23.8 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is March (9.7 days).
Average UV index in August
Tumtum, WA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in August
Tumtum, WA
- Average cloud cover in August: 13
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in August
Tumtum, WA
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
