San Jose Weather in December

December in San Jose brings moderate temperatures, with highs of 17°C (63°F) and nights dropping to 13°C (55°F). Expect some rainfall, with around 38 mm (1.5 in) typical for the month.

Rainfall in San Jose in December

Expect around 13 days of rain based on historical data, with 38 mm (1.5 in) average. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in San Jose in December

In December, expect moderate temperatures in San Jose, with highs of 17°C (63°F) and lows of 13°C (55°F) at night. December is typically considered a winter month. Conditions are often most pleasant around the middle of the day. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in San Jose in December

The area experiences a moderate amount of sunshine, with approximately 152 hours of sunlight expected. This means a decent mix of sun and overcast.

Average water temperature in December

With water at 17°C (63°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

December in San Jose 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.