According to Wikipedia (https://en.wikipedia.org/wiki/San_Jose,_California#Climate https://en.wikipedia.org/wiki/San_Jose,_California#Climate), the average high

According to Wikipedia (https://en.wikipedia.org/wiki/San_Jose,_California#Climate https://en.wikipedia.org/wiki/San_Jose,_California#Climate), the average high in July and August, the hottest months, is 81.9 degrees, and the annual mean temperature is 60.5 degrees. I suppose you might think that was "hot as hell" if you were from Scandinavia, but by California standards it's a pretty moderate climate. It's certainly not as bad as many other parts of the state.