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
The month of August sees the highest average temperatures, reaching 83.8°F (28.8°C) at the peak and 65.8°F (18.8°C) at the low.Heat index
For most parts of August, the heat index is computed to be a hot 87.8°F (31°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.The standards for the heat index are set for locations in shade and under light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
In August, the average relative humidity is 60%.Rainfall
In August, the rain falls for 3.3 days. Throughout August, 0.31" (8mm) of precipitation is accumulated. Throughout the year, there are 56.1 rainfall days, and 8.27" (210mm) of precipitation is accumulated.Daylight
In El Cajon, the average length of the day in August is 13h and 19min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:46 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:13 pm PDT.
Sunshine
In August, the average sunshine is 12h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: In August, the UV index of 6 transforms into the following advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest?
How hot does it get in August?
What is the average humidity in August?
How many days does it rain in August?
What is the average length of the day in August?
When is the sunrise / sunset in August in El Cajon?
How many hours of sunshine does El Cajon have in August?
What are the months with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
El Cajon, CA
- Average high temperature in August: 83.8°F
The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (63.7°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (47.8°F).
Average pressure in August
El Cajon, CA
- Average pressure in August: 29.88"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).
Average wind speed in August
El Cajon, CA
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is October (4.3mph).
Average humidity in August
El Cajon, CA
- Average humidity in August: 60%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).
Average rainfall in August
El Cajon, CA
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in August
El Cajon, CA
- Average rainfall days in August: 3.3 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.4 days).
Average daylight in August /
Average sunshine in August
El Cajon, 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 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
El Cajon, CA
- Average sunshine days in August: 23.9 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.9 days).
Average UV index in August
El Cajon, CA
- Average UV index in August: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in August
El Cajon, 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
El Cajon, 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).
El Cajon, California, USA
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