Car Rental. San Francisco. San Francisco, CA, USA to San Francisco, CA, USA. San Francisco, CA, USA to Las Vegas, NV, USA. California Road Trip, Desert Camping, California Camping Map. RV camper home. Fly Drive. General Information - California Travel and Tourism Commission. California is a year-round travel destination, with weather that will please everyone from snowbirds to sun worshippers. The best time to visit really comes down to what you want to do and what you want to see. Most people visit California between mid-June and August. It's summertime! Summer in California is undeniably delicious, but there are some things to consider: The state's top attractions and parks can be very crowded with visitors paying top dollar for lodging and waiting in long lines for popular sites. That said, it's never hard to hop off the beaten path and have forests, fields and even beaches all to yourself. Spring (March through early May) is a marvelous time to visit California.
Fall (September through November) is another good time to beat the crowds, and it can be an especially beautiful time to see Northern California and the state's wine regions. If you plan to ski, visit between December and February, when the Sierra Nevada almost always has snow. Customs Exchange.