The weather in San Francisco is cool to mild
throughout the year, with foggy summers and wet winters. The
climate is influenced by the cold currents of the Pacific Ocean
surrounding the city, which in conflict with the California
mainland summer heat, creates foggy conditions that blanket the
city during summer and early autumn. This ensures summers in San
Francisco are cooler than inland California. Winters are mild
during the day, temperatures seldom dropping below 60°F (15°C), but
nights are cold and rain is common. Rain in summer is
rare.
