California Weather, climate and geography

Weather & climate

Best time to visit

Summers are very warm, with cool evenings, while the spring and autumn months are mild, with cool evenings. The winter 'rainy season' is gentle and occurs between January and March. Much of the state has a Mediterranean climate, with hot, dry summers and mild, rainy winters. San Francisco is known for its characteristic fog in spring and early summer. Northern California and the high mountains have snow in winter, while the deserts experience very hot summers and mild winters.

For the best skiing in Lake Tahoe, the end of January and the beginning of February offer good snow and a break from the swelling crowds at Christmas and through mid-January. For prime sunny beach weather in Southern California, July and August offer lots of sun and heat, but there will be crowds. Avoid the “May Gray” and “June Gloom,” which bring a low-lying marine layer of clouds over the coastline for most of the day.

Required clothing

Lightweight during the summer with warmer wear for the cooler winter period. Hiking boots and gear are needed for more adventurous mountain climbing and hiking in Yosemite and parts of Joshua Tree. Skiing in Lake Tahoe is warmer than most mountains, so dress in layers, and don’t be surprised to see skiers show-off in t-shirts.
Beachwear is acceptable in restaurants and shops near the beach, but shirts and shoes are required by law. Men should not wear shorts away from the beach. Los Angeles is a fashion-conscious city, especially for women and dressier clothes are required for many nightclubs and restaurants. Men don’t have to wear formal suits, but shirts and trousers are standard.

Visa and passport information is updated regularly and is correct at the time of publishing. You should verify critical travel information independently with the relevant embassy before you travel.