California Department of Forestry and Fire Protection said the 15 acre “vegetation fire” began in an area of palm trees off Tyler Street and Vista Del Sur, on the east side of the city of Coachella.
The Riverside County Fire said the blaze – which has damaged power lines - had the potential to grow to 50 acres.
The public is being asked to avoid the area until firefighters are able to put out the fire.
There are no reports of any injuries.
Motorists were urged to obey road closures while fire engines and equipment remained deployed.
Resources are expected to remain at the scene for the duration of the day.
Investigators have determined the fire to be human-caused but remains under investigation.
Coachella 2018: Festival goers and celebrities soak up the atmosphere
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The Coachella Valley Music and Arts Festival, which started on Friday, is underway in nearby Indio.
Tens of thousands of fans have camped out at the site for the festival – which included a headline performance from Beyonce.
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