The highest day temperature in June 2025 was 92°F. The lowest night temperature was 78°F. The average values for day and night temperatures during June were 88.2°F и 80.8°F respectivly.

The average sea surface temperature in June 2025 for Port of San Jose was 89.9°F. The maximum and minimum values were 88.8°F and 91.4°F respectively.

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

Precipitation total in June for Port of San Jose is 7.0 in. It makes june the most rainy month of the year.

The average wind speed in June is 6.2 mph. This value is relatively stable throughout the year.

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 Port of San Jose in June is 4.6 hours.