San Bruno has a mild Mediterranean climate characterized by mild to warm, dry summers and cool, wet winters. San Bruno has much milder temperatures than most of the state. Owing to its relatively mild temperatures, the city's climate closely resembles that of an oceanic climate. Other regions of the world with similar temperatures to San Bruno include much of the United Kingdom, Ireland, New Zealand, southern Australia, the coastal areas of Norway and much of Scandinavia (where mild climates are often found).