Last updated: August 27, 2025
In San Mateo de Gallego, Spain during the month of December, the average temperature is a brisk 8°C (47°F). You can expect temperatures to vary, with a minimum dipping to -4°C (25°F) and a maximum reaching 19°C (66°F). Additionally, prepare for some moisture, as precipitation averages around 34 mm (1.3 in) over 7 days. The average humidity lingers at a high 84%, making for a refreshing but humid climate.
In December in San Mateo de Gallego, the average temperature is 8°C (47°F). The maximum can reach 19°C (66°F), while the minimum can drop to -4°C (25°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In San Mateo de Gallego in December, the total precipitation amount is 34 mm (1.3 in) over the course of 7 days.
In San Mateo de Gallego in December, humidity is 84%. With an average temperature of 8°C (47°F), this humidity feels like a damp blanket wrapping around you, making travel feel heavy and a bit lethargic, as the air thickens with moisture and each step becomes a little more cumbersome.
In San Mateo de Gallego in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in San Mateo de Gallego, you can visit Hourly UV Index in San Mateo de Gallego.
UV Risk Categories
Weather in San Mateo de Gallego varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Mateo de Gallego, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (44°F) | 33 mm (1.3 inches) | 85% | moderate |
| February Weather | 10°C (50°F) | 22 mm (0.9 inches) | 80% | moderate |
| March Weather | 12°C (54°F) | 43 mm (1.7 inches) | 73% | moderate |
| April Weather | 14°C (58°F) | 68 mm (2.7 inches) | 69% | very high |
| May Weather | 19°C (67°F) | 39 mm (1.5 inches) | 64% | very high |
| June Weather | 24°C (75°F) | 36 mm (1.4 inches) | 59% | extreme |
| July Weather | 27°C (81°F) | 17 mm (0.7 inches) | 58% | very high |
| August Weather | 26°C (80°F) | 18 mm (0.7 inches) | 58% | very high |
| September Weather | 22°C (72°F) | 31 mm (1.2 inches) | 64% | very high |
| October Weather | 17°C (62°F) | 43 mm (1.7 inches) | 76% | high |
| November Weather | 11°C (52°F) | 62 mm (2.4 inches) | 82% | moderate |
| December Weather | 8°C (47°F) | 34 mm (1.3 inches) | 84% | low |