San Clemente Weather in December

San Clemente in December sees moderate daytime temperatures of 12°C (54°F) and nighttime lows of 2°C (36°F). Moderate rainfall is typical, with around 47 mm (1.9 in) for the month.

Rainfall in San Clemente in December

You can expect rain on roughly 13 days based on historical data, averaging 47 mm (1.9 in) for the month. 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 Clemente in December

Daytime highs in San Clemente in December reach 12°C (54°F), with nights around 2°C (36°F). The month of December belongs to the winter season. Conditions are often most pleasant around the middle of the day. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

For San Clemente itself, April, May, September and October generally stand out with 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.