The highest day temperature in July 2023 was 102°F. The lowest night temperature was 80°F. The average values for day and night temperatures during July were 93.4°F и 83.1°F respectivly.

The average sea surface temperature in July 2023 for San Diego was 89.4°F. The maximum and minimum values were 88.2°F and 90.2°F respectively.

Most of the days in July are cloudy but you can also expect sunny or gloomy days.

Precipitation total in July for San Diego is 2.5 in.

The average wind speed in July is 9.9 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for San Diego in July is 6.0 hours.