San Diego Santa Run

City insight: San Diego

San Diego is a city on the Pacific coast of Southern California, next to the Mexican border, known for its beaches, parks and canyon-cut mesas. The climate is mild year-round, with warm, dry summers, mild winters and most of the modest rain falling between December and March. Coastal areas are cooled by the ocean and often by a marine layer, especially during May gray and June gloom, while inland areas swing more in temperature. Downtown averages about 10 °C January lows and 26 °C August highs. Conditions suit racing for much of the year, with inland courses warmer than the coast.