San Diego Weather In July

In the last 70 years the highest measured July temperature in San Diego was 100 degrees Fahrenheit, measured on July 31, 1930, and the typical high is 76. In the last 70 years the lowest measured July temperature in San Diego was 39 measured on July 28, 1930, while the typical low recorded temperature is 66.

According to National Weather Service San Diego July Weather data, on July 2, 1999, the recorded high temperature did not exceed 65 degrees Fahrenheit, the lowest high measured in San Diego in the past 70 years. NWS weather data additionally shows that on July 25, 2006, the lowest recorded temperature on that day did not drop below 76 degrees, the highest low measured in San Diego in the last 70 years.

Weather Service historical data shows that the average daily high temperature in San Diego on July First is 73 degrees Fahrenheit and the average high on the last day of July is 77 degrees. The average daily low temperature in San Diego on July First is 63 degrees Fahrenheit and the average low on the last day of July is 66 degrees.

San Diego normally receives an average of 0.03 inches of rain during July. The most rain recorded in a single day, as shown by July San Diego Weather data, was 0.23 inches on July 31, 1991.