August weather forecast
Salem, OR

An evening shot of the leafy town of Salem in Oregon
An evening shot of the leafy town of Salem in Oregon

Weather in August

The last month of the summer, August, is another warm month in Salem, Oregon, with average temperature ranging between min 54.1°F (12.3°C) and max 82°F (27.8°C).

Temperature

August is the warmest month, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 54.1°F (12.3°C).

Heat index

The average heat index in August is appraised at 85.5°F (29.7°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, wind, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

With an average relative humidity of 65%, August is the least humid month.

Rainfall

In August, the rain falls for 4 days. Throughout August, 0.31" (8mm) of precipitation is accumulated. Throughout the year, in Salem, there are 162.5 rainfall days, and 25.08" (637mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Salem, Oregon.

Daylight

The average length of the day in August is 14h.

Sunshine

August has the most sunshine of the year in Salem, with an average of 11h of sunshine.

UV index

The average daily maximum UV index in Salem is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Salem?

The warmest month is August, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 54.1°F (12.3°C).

What is the temperature in August in Salem?

The average high-temperature, in August, is 82°F (27.8°C), while the average low-temperature is 54.1°F (12.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in August is appraised at 85.5°F (29.7°C).

What is the least humid month in Salem?

August is the least humid month in Salem, Oregon, with an average relative humidity of 65%.

What is the average humidity in August in Salem?

In August, the average relative humidity in Salem is 65%.

How much does it rain in Salem in August?

In Salem, during August, the rain falls for 4 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When it does not snow in Salem?

April through October are months without snowfall in Salem.

How many hours of daylight does Salem have in August?

The average length of the day in August in Salem, Oregon, is 14h.

What month has the most sunshine in Salem?

The month with the most sunshine in Salem is August, with an average of 11h of sunshine.

How many hours of sunshine does Salem have in August?

The average sunshine in August is 11h.

What is the UV index reading in August in Salem?

In Salem, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in August
Salem, OR

Average temperature in August - Salem, OR
  • Average high temperature in August: 27.8°C

The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is December (7.5°C).

  • Average low temperature in August: 12.3°C

The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is December (1.4°C).

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Average pressure in August
Salem, OR

Average pressure in August - Salem, OR
  • Average pressure in August: 1016.2mbar

The month with the highest atmospheric pressure is January (1019.7mbar).
The month with the lowest atmospheric pressure is August (1016.2mbar).

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Average wind speed in August
Salem, OR

Average wind speed in August - Salem, OR
  • Average wind speed in August: 6.8km/h

The windiest month (with the highest average wind speed) is March (8.9km/h).
The calmest month (with the lowest average wind speed) is August (6.8km/h).

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Average humidity in August
Salem, OR

Average humidity in August - Salem, OR
  • Average humidity in August: 65%

Months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in August
Salem, OR

Average rainfall in August - Salem, OR
  • Average rainfall in August: 8mm

The wettest month (with the highest rainfall) is December (100mm).
The driest month (with the least rainfall) is July (7mm).

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Average rainfall days in August
Salem, OR

Average rainfall days in August - Salem, OR
  • Average rainfall days in August: 4 days

The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is July (3.9 days).

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Average snowfall in August
Salem, OR

Average snowfall in August - Salem, OR
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (30mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in August
Salem, OR

Average snowfall days in August - Salem, OR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Salem, OR

Average daylight in August / Average sunshine in August - Salem, OR
  • Average daylight in August: 14h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in August: 11h

The month with the most sunshine is August (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 4.2h).

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Average sunshine days in August
Salem, OR

Average sunshine days in August - Salem, OR
  • Average sunshine days in August: 25.2 days

The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is March (8.8 days).

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Average UV index in August
Salem, OR

Average UV index in August - Salem, OR
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Salem, OR

Average cloud cover in August - Salem, OR
  • Average cloud cover in August: 21

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in August
Salem, OR

Average visibility in August - Salem, OR
  • Average visibility in August: 9km

Months with the highest visibility are July, August and September (9km).
Months with the lowest visibility are January, February, March, April, May, June, October, November and December (8km).

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