Last updated: June 24, 2025
In San Diego Country Estates, United States, the average temperature for December settles at a pleasant 11°C (52°F). Expect a range of temperatures, with a minimum dipping to 0°C (32°F) and a maximum soaring up to 28°C (82°F). During this month, anticipate 67 mm (2.6 in) of precipitation over approximately 6 days, contributing to an average humidity of 74%. Enjoy the seasonal shifts while staying prepared!
In December in San Diego Country Estates, the average temperature is 11°C (52°F), with maximums reaching 28°C (82°F) and minimums dropping as low as 0°C (32°F). This makes it a great time to visit for those who enjoy mild weather and are prepared for cooler evenings.
In San Diego Country Estates in December, the precipitation amount is 67 mm (2.6 in) over the course of 6 days.
In San Diego Country Estates in December, humidity is 74%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill in the air, making travel outdoors feel heavier and more cumbersome, often leading to discomfort and a need for warmer clothing.
In San Diego Country Estates in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in San Diego Country Estates for better planning.
UV Risk Categories
Weather in San Diego Country Estates varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Diego Country Estates, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (52°F) | 66 mm (2.6 inches) | 72% | moderate |
| February Weather | 11°C (52°F) | 90 mm (3.5 inches) | 77% | high |
| March Weather | 12°C (54°F) | 71 mm (2.8 inches) | 67% | very high |
| April Weather | 15°C (60°F) | 30 mm (1.2 inches) | 56% | extreme |
| May Weather | 17°C (62°F) | 30 mm (1.2 inches) | 46% | extreme |
| June Weather | 21°C (70°F) | 3 mm (0.1 inches) | 48% | extreme |
| July Weather | 25°C (76°F) | 7 mm (0.3 inches) | 46% | extreme |
| August Weather | 25°C (77°F) | 4 mm (0.2 inches) | 42% | extreme |
| September Weather | 23°C (74°F) | 6 mm (0.2 inches) | 52% | extreme |
| October Weather | 19°C (67°F) | 15 mm (0.6 inches) | 58% | very high |
| November Weather | 15°C (60°F) | 36 mm (1.4 inches) | 66% | moderate |
| December Weather | 11°C (52°F) | 67 mm (2.6 inches) | 74% | moderate |