La Jolla Weather in December

La Jolla in December averages 18°C (64°F) during the day and 8°C (46°F) at night. This is the wettest month of the year.

Rainfall in La Jolla in December

As the rainiest month, carrying an umbrella is advisable to manage the frequent rain. Historically, December sees about 7 days of rain, with a monthly average of 64 mm (2.5 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in La Jolla in December

Expect highs of 18°C (64°F) in La Jolla in December, with nights dropping to around 8°C (46°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. This month is known for its mildest temperatures of the year, yet it still offers a pleasantly warm days.

Sunshine in La Jolla in December

Expect sunny days throughout the month, with an estimated 231 hours of sunshine. This makes it a pleasant time to visit La Jolla.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit La Jolla. Our weather planner can help you explore destinations with more pleasant weather conditions.