The weather poses minimal risks for Christmas celebrations in San Francisco. However, the highest king tide of the winter is expected on Christmas Eve, peaking at 10:40 a.m. near the Golden Gate, with a predicted height of 7.2 feet. This could lead to minor flooding along low-lying waterfront areas, especially if a storm coincides with the tide. Evening temperatures in the upper 40s (8–9°C) may feel chilly, particularly in breezy waterfront locations like Pier 39 and the Embarcadero. Travelers should also be aware of potential flight delays at SFO due to low clouds or strong winds, which are common in December.