La Mesa Weather in December

La Mesa in December sees pleasant daytime temperatures of 19°C (66°F) and nighttime lows of 7°C (45°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.

Rainfall in La Mesa in December

With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Historically, December sees about 9 days of rain, with a monthly average of 74 mm (2.9 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in La Mesa in December

In December, La Mesa gets pleasant temperatures, with highs of 19°C (66°F). Nights cool to around 7°C (45°F). December is known for being in the winter season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 7°C (45°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. Experience the year's lowest temperatures this month, but they are still mild and pleasant.

Sunshine in La Mesa in December

The month enjoys around 231 hours of sunshine, creating mostly sunny days with good weather conditions.

December in La Mesa can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.