Hottest Temperature In California. Where can you find the hottest temperatures in california? The correct answer is mojave desert.

In the northernmost part of the coast, the temperature of the pacific ocean fluctuates between 11 °c (52 °f) and 14 °c (57 °f), while in san francisco, it fluctuates between 12 °c (54 °f) and 14 °c (57 °f). The blistering heat in the mojave desert came as an intense heatwave. As mentioned, a cold current flows along the california coast.