August weather forecastWinchester, CA
August
Weather in August
The last month of the summer, August, is another tropical month in Winchester, California, with an average temperature varying between 63.3°F (17.4°C) and 89.6°F (32°C).Temperature
August stands out as Winchester's warmest month, with an average high-temperature of 89.6°F (32°C) and a low-temperature of 63.3°F (17.4°C).Heat index
The heat index for August is estimated at a hot 93.2°F (34°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important 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
The least humid month is August, with an average relative humidity of 47%.Rainfall
In Winchester, during August, the rain falls for 3.8 days and regularly aggregates up to 0.31" (8mm) of precipitation. In Winchester, 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
The average length of the day in August is 13h and 22min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:48 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:14 pm PDT.
Sunshine
In August, the average sunshine is 12h.UV index
In Winchester, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 6 in August translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure in August
Winchester, CA
- Average pressure in August: 29.87"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
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).
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%).
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").
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).
Average snowfall in August
Winchester, CA
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
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).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Winchester, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
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).
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).
Average cloud cover in August
Winchester, CA
- Average cloud cover in August: 5
The 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).
Average visibility in August
Winchester, CA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
