Maybe this the same space craft that should have been trailing the comet Hale–Bopp and they just got the date wrong. San Diego is a great place to spend Christmas. Personally I need a coat but my back east relatives wear a sweater at night.
During Dec Temps
Average High Temperature: 66°F/19°C
Average Low Temperature: 49°F/9°C
This on the water inland is a little warmer.