El Cajon Mountain in the nearby East County landscape

Weather · August

El Cajon weather in August

Average highs of 89°F, lows of 65°F and 0.00 in of rain, from 30 years of weather records.

August is El Cajon’s warmest month, with average highs of 89°F and lows of 65°F. That is 3° warmer than July, and 11° above the yearly average high.

Average high
89°F
Average low
65°F
Precipitation
0.00 in
Wet days
0
Sunrise · sunset
6:11 AM · 7:33 PM

August across the year

  1. 69°43°Jan
  2. 69°44°Feb
  3. 71°48°Mar
  4. 75°51°Apr
  5. 76°56°May
  6. 81°59°Jun
  7. 86°63°Jul
  8. 89°65°Aug
  9. 87°62°Sep
  10. 81°56°Oct
  11. 75°47°Nov
  12. 69°42°Dec

High and low Rain

What to wear in August

  • Warm days: shorts and T-shirts.

Around El Cajon

A-7B 154554 San Diego Air and Space Museum Annex, El Cajon
A-7B 154554 San Diego Air and Space Museum AnnexRealbigtaco · CC BY-SA 4.0
Mother Goose Parade 2017 El Cajon California Firetruck and Smokey the Bear
Mother Goose Parade 2017 El Cajon California Firetruck and Smokey the BearSocalgœtz · CC BY-SA 4.0
Mother Goose Parade 2017 El Cajon California Lady Liberty and Carriage
Mother Goose Parade 2017 El Cajon California Lady Liberty and CarriageSocalgœtz · CC BY-SA 4.0

See El Cajon

A look around town before you go.

A recorded city film: El Cajon video thumbnail

A DRIVE AROUND TOWN

A recorded city film: El Cajon

This recorded neighborhood drive explores El Cajon streets. It is a creator’s filmed journey, not a live traffic camera or a current road-condition report.

Watch on YouTube ↗
More info on this cute garden in El Cajon ⬇️ Currently 50% off for Museum Month! There’s animals, video thumbnail

THINGS TO DO · YOUTUBE SHORT

More info on this cute garden in El Cajon ⬇️ Currently 50% off for Museum Month! There’s animals,

An activity Short shared by San Diego Mamas.

Watch on YouTube ↗

August compared with the months around it

MonthHighLowRain
July86°F63°F0.20 in
August89°F65°F0.00 in
September87°F62°F0.10 in

Planning a trip? See the best time to visit El Cajon and today’s forecast.

Questions

How hot does it get in El Cajon in August?

Average highs are 89°F and average lows 65°F, for a daily mean of 77°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in El Cajon in August?

August averages 0.00 in of precipitation over about 0 days with at least 0.01 in. It is the 12th wettest month of the year.

What time is sunset in El Cajon in August?

Around mid-August the sun rises about 6:11 AM and sets about 7:33 PM, for roughly 13.4 hours of daylight.

Is August a good time to visit El Cajon?

The mildest months for visiting are May, June, October. August is warm.

NOAA U.S. Climate Normals 1991–2020, El Cajon station (2 mi from downtown). Sunrise and sunset are calculated for August 15 at the city’s coordinates.

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