The weather in August in El Cajon

It's warm in August in El Cajon with an average temperature of 28°C. Temperatures this month range from a low of 26°C to a high of 30°C. At night, you can expect temperatures between 19°C and 21°C.

Looking for great weather? August is a good time to be in El Cajon. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for El Cajon, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 35°C in 2015, El Cajon reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 21°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 15°C to a highest value of 25°C.

Rainfall amount

According to weather history, there is only 5,3 mm of precipitation in August. The wind speed is around 3 Bft, mostly coming from the West.

Daily weather in August for El Cajon

Click on any day in August to get detailed info about the usual weather on that day in El Cajon. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  El Cajon New York
Average temperature 28°C 30°C
Max. temperature 30°C 31°C
Min. temperature 19°C -5°C
Total precipitation 5,3 mm 79 mm
Rainy days 1 day 13 days

Start of August

The month of August starts in El Cajon with hot temps, averaging around 28°C during the day and nights around 20°C.

Mid August

By mid-August, daytime temps rise to around 29°C, with nights around 21°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of August

By the end of August, the average daytime temperature in El Cajon is around 28°C, while nighttime temps are about 21°C. No precipitation expected at the end of the month; it’ll be mostly sunny.

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UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of El Cajon for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in August in El Cajon, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in El Cajon

Temperature in August in El Cajon over the years

Precipitation charts

These charts show the average amount of precipitation in August in El Cajon, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in August in El Cajon

Total precipitation in August in El Cajon over the years

Daily UV index in August in El Cajon

This chart shows the average daily UV index in August in El Cajon, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in August in El Cajon

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Average weather in El Cajon by month

Click on a month below to see detailed weather info for El Cajon. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.