Last updated: August 27, 2025
In December, the average temperature in San Sebastian de los Ballesteros, Spain hovers around 11°C (52°F). You'll experience a range from a chilly -2°C (28°F) at the lowest to a pleasant 23°C (73°F) at the highest. Expect 43 mm (1.7 in) of precipitation spread over 7 days, and don't forget to brace yourself for an average humidity of 79%!
In December in San Sebastian de los Ballesteros, the average temperature is 11°C (52°F). The maximum can reach 23°C (73°F), and the minimum can be as low as -2°C (28°F). It's advisable to pack layers to prepare for the varying temperatures while exploring the beauty of San Sebastian de los Ballesteros.
In San Sebastian de los Ballesteros in December, the total precipitation amount is 43 mm (1.7 in) spread over a period of 7 days.
In San Sebastian de los Ballesteros in December humidity is 79%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps through your clothes, making prolonged outdoor activities uncomfortable for travelers.
In San Sebastian de los Ballesteros in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in San Sebastian de los Ballesteros, you can check the information here.
UV Risk Categories
Weather in San Sebastian de los Ballesteros varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Sebastian de los Ballesteros, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 9°C (48°F) | 38 mm (1.5 inches) | 76% | moderate |
| February Weather | 12°C (54°F) | 30 mm (1.2 inches) | 71% | moderate |
| March Weather | 14°C (57°F) | 78 mm (3.1 inches) | 66% | high |
| April Weather | 16°C (62°F) | 56 mm (2.2 inches) | 58% | very high |
| May Weather | 22°C (72°F) | 16 mm (0.6 inches) | 55% | very high |
| June Weather | 26°C (78°F) | 5 mm (0.2 inches) | 50% | extreme |
| July Weather | 29°C (84°F) | 1 mm (0.0 inches) | 55% | extreme |
| August Weather | 29°C (85°F) | 10 mm (0.4 inches) | 54% | very high |
| September Weather | 25°C (78°F) | 26 mm (1.0 inches) | 61% | very high |
| October Weather | 20°C (68°F) | 41 mm (1.6 inches) | 70% | high |
| November Weather | 14°C (57°F) | 62 mm (2.5 inches) | 76% | moderate |
| December Weather | 11°C (52°F) | 43 mm (1.7 inches) | 79% | moderate |