San José Weather in December

December in San José brings high temperatures, with daytime highs of 30°C (86°F) and nights around 20°C (68°F). Expect around 54 mm (2.1 in) of rainfall during the month.

Rainfall in San José in December

Historically, approximately 12 days this month are expected to have rain, averaging 54 mm (2.1 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in San José in December

In December, San José gets high temperatures, with highs of 30°C (86°F). Nights cool to around 20°C (68°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 20°C (68°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. This month brings slightly cooler weather compared to other months, but the warmth is still present and enjoyable.

If you prefer enjoying temperate temperatures and rain-free days, February typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.