We know the question on your mind, fellow San Joseans — when’s it going to get consistently hot again? Thanks to the National Oceanic and Atmospheric Administration’s Climate Prediction Center , we know what temperatures and precipitation trends to expect in our city for June, July, and August.
While exact weather conditions typically can’t be predicted more than a week in advance, here’s a seasonal outlook to help you prepare for what summer will bring.
Reminder: The first day of summer is on Wednesday, June 21.
The seasonal temperature outlook for this summer.
Screenshot via NOAA
🌡️ Temperature
Think hot. This summer, San Jose has a 33-40% chance of temperatures being higher than normal.
🌨️ Precipitation
Expect slight precipitation. While trends point to a typical amount rainfall for SJ, there’s a 60% likelihood that an El Niño will begin this month — bringing light rain and a bit of humidity to the Bay Area.
June
Usually in San Jose, June is the beginning of our region’s warm weather, as the average high of 70.5°F in May heats up to a toasty average high of 78.4°F and a low of 53.2°F this month.
Also, June is the month with the longest days — averaging approx. 14 hours and 41 min of daylight. Sounds perfect to fit in all the pool visits, Pride Month pop-ups , and hiking trips , huh?
July
In July, it heats up even more. As the warmest month, you can expect an average high of 82°F and a low of 55.2°F. Lucky for us, and maybe your hair, this month brings the least humidity. Stay cool .
August
The last month of summer will follow closely to July’s trends with an average high of 81.9°F and a low of 56.5°F. The maximum UV index averages at 6, so, don’t skip the sunscreen.