As the crow flies, UCLA is only 5 miles from the coast. USC is 10 miles, while Harvey Mudd is approx 40 miles from a western facing beach. Claremont is nestled in the foothills of the San Gabriel mountains which makes it more smoggy and contributes to the feeling that the air isn’t moving. Since OP is concerned about eczema, it is a dryer heat than the schools that are closer to the coast.