August weather forecast
Winchester, CA

Weather in August

The last month of the summer, August, is another hot month in W"ter, California, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 89.6°F (32°C).

Temperature

The warmest month is August, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 63.3°F (17.4°C).

Heat index

The average heat index in August is computed to be a hot 92.7°F (33.7°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. 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', 'feels like', 'felt air temperature', or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, metabolic differences, clothing, and pregnancy affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the 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 47%, August is the least humid month.

Rainfall

In August, the rain falls for 3.8 days. Throughout August, 0.31" (8mm) of precipitation is accumulated. In W"ter, during the entire year, the rain falls for 55.7 days and collects up to 7.05" (179mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

In August, the average length of the day in W"ter is 13.4h.

Sunshine

In W"ter, the average sunshine is 12h.

UV index

In W"ter, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in W"ter?

With an average high-temperature of 89.6°F (32°C) and an average low-temperature of 63.3°F (17.4°C), August is the warmest month in W"ter.

What is the temperature in August in W"ter?

In W"ter, in August, the average high-temperature is 89.6°F (32°C), and the average low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 92.7°F (33.7°C).

What is the least humid month in W"ter?

August is the least humid month in W"ter, with an average relative humidity of 47%.

What is the average humidity in August in W"ter?

The average relative humidity in August in W"ter, California, is 47%.

How many days does it rain in August in W"ter?

In August, in W"ter, the rain falls for 3.8 days. Throughout August, 0.31" (8mm) of precipitation is accumulated.

When it does not snow in W"ter?

January, March through December are months without snowfall in W"ter, California.

What is the average length of the day in August in W"ter?

In August, the average length of the day in W"ter, California, is 13.4h.

How many hours of sunshine does W"ter have in August?

In August, the average sunshine is 12h.

How high is the UV index in August in W"ter?

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.

Average temperature in August
Winchester, CA

Average temperature in August - Winchester, CA
  • Average high temperature in August: 89.6°F

The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is December (61°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (43°F).

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Average pressure in August
Winchester, CA

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

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in August
Winchester, CA

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

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest months (with the lowest average wind speed) are August and September (4.2mph).

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Average humidity in August
Winchester, CA

Average humidity in August - Winchester, CA
  • Average humidity in August: 47%

The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in August
Winchester, CA

Average rainfall in August - Winchester, CA
  • Average rainfall in August: 0.31"

The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in August
Winchester, CA

Average rainfall days in August - Winchester, CA
  • Average rainfall days in August: 3.8 days

The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall in August
Winchester, CA

Average snowfall in August - Winchester, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.04").
Months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Winchester, CA

Average snowfall days in August - Winchester, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.2 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in August / Average sunshine in August - Winchester, CA
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 12h

The month with the most sunshine is 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
Winchester, CA

Average sunshine days in August - Winchester, CA
  • Average sunshine days in August: 24.5 days

The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (21.6 days).

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Average UV index in August
Winchester, CA

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

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in August
Winchester, CA

Average cloud cover in August - Winchester, CA
  • Average cloud cover in August: 5

Months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in August
Winchester, CA

Average visibility in August - Winchester, 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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