Rancho Bernardo Weather in December

In Rancho Bernardo, December brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 6°C (43°F). It is the wettest month of the year, so expect more rainfall than usual.

Rainfall in Rancho Bernardo in December

With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Looking at the last 30 years, the data shows about 8 days with rain, averaging 79 mm (3.1 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Rancho Bernardo in December

Daytime temperatures in Rancho Bernardo reach 19°C (66°F) in December, dropping to 6°C (43°F) at night. The winter season takes place during December. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. Experience mild yet warm temperatures during this month, offering a comfortable climate.

Sunshine in Rancho Bernardo in December

Enjoy a sunny month with about 231 hours of sunshine, the clear skies make Rancho Bernardo even more beautiful.

December in Rancho Bernardo has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.