Best time to go to San Francisco
San Francisco experiences its lowest average temperature in December, at 51.3°F (10.7°C), while September is the hottest month, with an average temperature of 64.9°F (18.3°C). December is typically the wettest month. If you’re looking to soak up the lively atmosphere in San Francisco, March, April, and July are the peak months to visit, bustling with fellow travelers. During this peak period, the weather is sunny to mostly sunny, with little to no rainfall. However, if you prefer a more relaxed experience, October to December are perfect for a quieter getaway, marked by no to light rainfall and sunny to mostly sunny conditions.