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United States · December

San Diego in December

December in San Diego offers a delightful escape from winter's chill with mild temperatures perfect for exploring. This Southern California gem truly shines with its year-round sunshine, making it ideal for outdoor adventures even as other destinations freeze.

Is December a good time to visit San Diego?

December is a workable month for San Diego with tradeoffs. 15-19°C, mild with a higher chance of rain. — Christmas and New Year's week are busy and expensive.

Overall: Decent
Crowds: Moderate
Prices: Heavy

What makes December worth visiting

  • Holiday Bowl
  • Christmas on the Harbor
  • Whale watching season

Events in San Diego this December

December
Whale Watching Season

Gray whales migrate south along the coast, offering excellent viewing opportunities.

December
Holiday Bowl

A major NCAA college football bowl game held in San Diego.

What to pack for San Diego in December

Winter-specific items.

Clothing

  • Light jacket or fleece
  • Long-sleeve shirts
  • Jeans or comfortable trousers
  • Shorts
  • Swimsuit

Footwear

  • Comfortable walking shoes
  • Sandals or flip-flops

Weather-Specific Gear

  • Sunscreen
  • Sunglasses
  • Hat with a brim

Electronics

  • Portable power bank
  • Camera

Health & Safety

  • Basic first-aid kit
  • Any personal medications
Full packing list →