Last updated: August 27, 2025
In December, the average temperature in Idanha-a-Nova, Portugal hovers around 10°C (49°F). Expect chilly nights with a minimum temperature of -3°C (27°F), while daytime highs can reach up to 19°C (67°F). The region sees about 82 mm (3.2 in) of precipitation over approximately 8 days, contributing to an average humidity level of 87%.
In December in Idanha-a-Nova, the average temperature is 10°C (49°F). Maximums can reach 19°C (67°F), while minimums can drop as low as -3°C (27°F). This variability in temperatures makes it essential for travelers to pack layers for their visit.
In Idanha-a-Nova in December, the total precipitation amount reached 82 mm (3.2 in) over the course of 8 days.
In Idanha-a-Nova in December, humidity is 87%. With an average temperature of 10°C (49°F), this humidity feels like a damp chill that clings to your skin, making outdoor excursions somewhat uncomfortable and requiring layered clothing to navigate the cold, clammy air effectively.
In Idanha-a-Nova 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 Idanha-a-Nova, you can check the information here.
UV Risk Categories
Weather in Idanha-a-Nova varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Idanha-a-Nova, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 8°C (46°F) | 39 mm (1.5 inches) | 87% | moderate |
| February Weather | 10°C (51°F) | 53 mm (2.1 inches) | 76% | moderate |
| March Weather | 12°C (53°F) | 81 mm (3.2 inches) | 68% | high |
| April Weather | 14°C (58°F) | 67 mm (2.7 inches) | 64% | very high |
| May Weather | 19°C (66°F) | 28 mm (1.1 inches) | 62% | very high |
| June Weather | 22°C (72°F) | 11 mm (0.4 inches) | 47% | extreme |
| July Weather | 25°C (78°F) | 4 mm (0.2 inches) | 46% | very high |
| August Weather | 26°C (78°F) | 3 mm (0.1 inches) | 42% | very high |
| September Weather | 22°C (72°F) | 27 mm (1.1 inches) | 53% | very high |
| October Weather | 18°C (64°F) | 63 mm (2.5 inches) | 69% | high |
| November Weather | 12°C (53°F) | 79 mm (3.1 inches) | 85% | moderate |
| December Weather | 10°C (49°F) | 82 mm (3.2 inches) | 87% | moderate |