The weather in San Francisco can be great all year long, so it is not worth waiting for a particular season. Winter is more variable but offers incredible moments before and after the storms. My schedule is also more flexible in Winter. Spring is windy and great for raw and wild moments. Summer is warm and sunny or beautifully foggy depending on location and timing. Fall is considered our “best season,” but note that locations are busier and wildfire smoke can be an issue. TLDR – don’t stress about the season.