August weather forecast and climate
Descanso, CA

Weather in August

The last month of the summer, August, is a hot month in Descanso, California, with average temperature ranging between max 87.3°F (30.7°C) and min 64.9°F (18.3°C).

Temperature

With an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 64.9°F (18.3°C), August is the warmest month.

Heat index

The average heat index is evaluated at a hot 90.5°F (32.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, clothing, wind), and activity. 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 particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In August, the average relative humidity is 52%.

Rainfall

In Descanso, in August, during 6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, there are 62 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

Daylight

In Descanso, the average length of the day is 13.3h.

Sunshine

The average sunshine in August is 12h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index in Descanso, California. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Descanso?

August is the warmest month, with an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 64.9°F (18.3°C).

What is the temperature in August in Descanso?

In Descanso, California, in August, the average high-temperature is 87.3°F (30.7°C), and the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), that factores the actual air temperature with the relative humidity, in August is appraised at 90.5°F (32.5°C).

What is the average humidity in August in Descanso?

In Descanso, California, the average relative humidity in August is 52%.

How much does it rain in Descanso in August?

In Descanso, in August, during 6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

What is the average length of the day in August in Descanso?

In August, the average length of the day in Descanso, California, is 13.3h.

How many hours of sunshine does Descanso have in August?

In Descanso, the average sunshine in August is 12h.

What is the month with the highest UV index in Descanso?

Months with the highest UV index are June through September, with an average maximum UV index of 6.

What is the UV index intensity in August in Descanso?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in August
Descanso, CA

Average temperature in August - Descanso, CA
  • Average high temperature in August: 87.3°F

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).

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Average pressure in August
Descanso, CA

Average pressure in August - Descanso, CA
  • Average pressure in August: 29.87"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in August
Descanso, CA

Average wind speed in August - Descanso, CA
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

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Average humidity in August
Descanso, CA

Average humidity in August - Descanso, CA
  • Average humidity in August: 52%

The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is November (51%).

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Average rainfall in August
Descanso, CA

Average rainfall in August - Descanso, CA
  • Average rainfall in August: 0.63"

The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in August
Descanso, CA

Average rainfall days in August - Descanso, CA
  • Average rainfall days in August: 6 days

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).

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Average daylight in August /
Average sunshine in August
Descanso, CA

Average daylight in August / Average sunshine in August - Descanso, CA
  • Average daylight in August: 13.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in August: 12h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in August
Descanso, CA

Average sunshine days in August - Descanso, CA
  • Average sunshine days in August: 21.5 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).

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Average UV index in August
Descanso, CA

Average UV index in August - Descanso, CA
  • Average UV index in August: 6

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in August
Descanso, CA

Average cloud cover in August - Descanso, CA
  • Average cloud cover in August: 6

Months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in August
Descanso, CA

Average visibility in August - Descanso, CA
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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