realskiers

Summer in southern Marin county: It will be sunny with a high of 72 today. If I stay around the coast on my rides I rarely see temps above 75. Inland we can get into the 90's quickly.

Yes, hydration is key. Nutrition as well as you bonk much sooner/faster in extreme heat. Dialing back what you want to accomplish that day is also a smart move.

As crazy as it sounds I really do miss the warmth and humidity of the east coast. I cycle many days in the summer when then temps never get above the low 60's and with wind it feels like winter!