August weather forecast
Tumtum, WA

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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.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

The warmest time of the year is August, with temperatures averaging a high of 84°F (28.9°C) and a low of 54.3°F (12.4°C).

How hot is August?

In Tumtum, in August, the average high-temperature is 84°F (28.9°C), and the average low-temperature is 54.3°F (12.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 84.2°F (29°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 43%.

What is the average humidity in August?

The average relative humidity in August is 43%.

What is the driest month in Tumtum?

August is the month with the least rainfall. Rain falls for 5.1 days and accumulates 0.31" (8mm) of precipitation.

How much does it rain in August?

In August, the rain falls for 5.1 days. Throughout August, 0.31" (8mm) of precipitation is accumulated.

When it does not snow?

In Tumtum, snow does not fall in June through August.

Does it snow in August?

In Tumtum, in August, it doesn't snow. In September, it regularly snows.

How many hours of daylight does Tumtum have in August?

In August, the average day length is 14h and 14min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:28 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:32 pm PDT.

What month has the most sunshine?

August has the most sunshine of the year in Tumtum, with an average of 12h of sunshine.

How many hours of sunshine does Tumtum have in August?

The average sunshine duration in August is 12h.

What is the UV index intensity in August?

In Tumtum, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Tumtum, WA

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in August - Tumtum, WA
  • Average daylight in August: 14h and 1min

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 - 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 - 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 - 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 - 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).

Tumtum, Washington, USA

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