Home prices in San Diego decreased by 0.7% in August, following a similar decline in July, amid a national trend. Despite this, prices are up 5.7% over the past year. Nationwide, prices fell by 0.1%, with only a few metro areas, including New York, Las Vegas, and Chicago, reaching all-time highs. Experts note that home price growth is slowing, with buyers hesitant to accept high prices as the market approaches the fall months, although sellers can still expect high home equity.