Grab your sunglasses, San Jose — summer officially starts in less than a month. After this week’s heatwave, the upcoming summer promises even more warm days ahead. To keep you prepared, we’ve put together some of the major weather trends headed our way over the next few months.
Here’s what you can expect this summer in San Jose, based on predictions from the National Oceanic and Atmospheric Administration’s Climate Prediction Center.

Summer temperatures in San Jose will be higher than average. | Graphic by The Weather Channel
🌡️ Temperature
Think warm. Expect to see warmer-than-normal temperatures across much of the US, with the exception of the Midwest. The predicted continuation of La Niña conditions plays a large role in the expected hotter-than-average temps in June-August for the US, especially for us in the West.
In San Jose, there’s a 40-50% chance of our high temperatures being above normal. Usually, San Jose averages highs of 80° in June, 82° in July, and 82° in August.
No AC? No problem. In the case of extreme heat, you can take advantage of one of the many cooling centers in Santa Clara County.
🌨️ Precipitation
You probably won’t need that umbrella. Usually, San Jose averages zero days of rain in June, July, and August — and it doesn’t look like this year will be any different.
⌛ Drought
Santa Clara County is experiencing its driest year since 1977, and unfortunately, we’re in the midst of a severe drought emergency — which is likely to continue through August.
Check your water retailer for specific water use restrictions + conservation programs that might be available to residents.
🔥 Wildfires
This year, there is a higher than normal possibility of regional wildfires through July.
To stay in the loop about possible dangers + evacuation orders, sign up to receive safety alerts from Santa Clara County and review their preparedness guide.
You can also check local air quality and maps of current California fires online.