Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
In Vista, the month of August is known for its highest average temperatures, reaching a high of 81.1°F (27.3°C) and a low of 63.9°F (17.7°C).Heat index
The heat index value for August is appraised at 84.2°F (29°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.One should consider that heat index numbers are for shaded settings and light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In August, the average relative humidity is 65%.Rainfall
In Vista, in August, during 3.3 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, in Vista, there are 62.9 rainfall days, and 9.17" (233mm) of precipitation is accumulated.Daylight
In August, the average length of the day is 13h and 20min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:47 pm. On the last day of August, in Vista, sunrise is at 6:23 am and sunset at 7:14 pm PDT.
Sunshine
July and August, with an average of 12h of sunshine, are months with the most sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Vista. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Vista?
What is the average August temperature in Vista?
What is the average humidity in August?
How many days does it rain in August?
How many hours of daylight does Vista have in August?
When are sunrise and sunset in August in Vista?
What are the months with the most sunshine?
How long on average sun shines in August?
What is the month with the highest UV index?
How high is the UV index in August?
Average temperature in August
Vista, CA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (62.6°F).
- Average low temperature in August: 63.9°F
The month with the highest average low temperature is August (63.9°F).
The coldest month (with the lowest average low temperature) is February (48.4°F).
Average pressure in August
Vista, CA
- Average pressure in August: 29.88"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Vista, CA
- Average wind speed in August: 4.7mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is October (4.5mph).
Average humidity in August
Vista, CA
- Average humidity in August: 65%
The month with the highest relative humidity is May (70%).
The month with the lowest relative humidity is November (57%).
Average rainfall in August
Vista, CA
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in August
Vista, CA
- Average rainfall days in August: 3.3 days
The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is June (1.6 days).
Average daylight in August /
Average sunshine in August
Vista, CA
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in August
Vista, CA
- Average sunshine days in August: 24.3 days
The month with the most sunshine days is October (24.6 days).
The month with the least sunshine days is February (19.7 days).
Average UV index in August
Vista, CA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in August
Vista, CA
- Average cloud cover in August: 7
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in August
Vista, 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).
Vista, California, USA
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