The highest day temperature in July 2023 was 81°F. The lowest night temperature was 38°F. The average values for day and night temperatures during July were 62.1°F и 46.9°F respectivly.

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

Precipitation total in July for San Juan is 0.1 in. This value is relatively stable throughout the year.

The average wind speed in July is 6.2 mph. It makes July one of the most windless months of the year for San Juan.

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 Juan in July is 9.3 hours.