The highest day temperature in June 2025 was 73°F. The lowest night temperature was 27°F. The average values for day and night temperatures during June were 60.0°F и 45.7°F respectivly.

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

Precipitation total in June for San Juan is 0.0 in. This value is relatively stable throughout the year.

The average wind speed in June is 6.0 mph. It makes June the most windless month 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 June is 8.8 hours.