Pleasanton Weather in December

December in Pleasanton brings moderate temperatures, with daytime highs of 14°C (57°F) and nights around 4°C (39°F). It's also the wettest month of the year, so an umbrella is a must.

Rainfall in Pleasanton in December

With the most rainfall occurring this month, it's practical to keep an umbrella handy for sudden downpours. Analyzing past climate data, one can expect approximately 12 days of rain, averaging 91 mm (3.6 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Pleasanton in December

Daytime temperatures in Pleasanton reach 14°C (57°F) in December, dropping to 4°C (39°F) at night. December is in the winter season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. December is characterized by some of the mildest temperatures of the year.

Sunshine in Pleasanton in December

With about 160 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

December in Pleasanton has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.