The highest day temperature in July 2025 was 61°F. The lowest night temperature was 52°F. The average values for day and night temperatures during July were 59.2°F и 55.8°F respectivly.

The average sea surface temperature in July 2025 for San Francisco was 62.1°F. The maximum and minimum values were 59.0°F and 65.2°F respectively.

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

Precipitation total in July for San Francisco is 0.2 in. It makes july one of the least rainy months of the year.

The average wind speed in July is 9.0 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 Francisco in July is 9.2 hours.