Last updated: August 27, 2025
In December, the average temperature in Castelo de Paiva, Portugal hovers around 9°C (48°F), making it a cool month. Expect a minimum chill of -3°C (27°F) and a comfortable high of 18°C (64°F). With 231 mm (9.1 in) of precipitation spread over about 15 days, you'll want an umbrella handy. The air is notably moist, with an average humidity of 87%, creating a refreshing yet damp atmosphere.
In December in Castelo de Paiva, the average temperature is 9°C (48°F), with maximum temperatures reaching 18°C (64°F) and minimums dropping as low as -3°C (27°F). It's advisable to pack layers for your travels to ensure comfort in the varying temperatures.
In Castelo de Paiva in December, the precipitation amount is 231 mm (9.1 in) over a span of 15 days.
In Castelo de Paiva in December humidity is 87%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and requiring extra layers and careful planning for any activities.
In Castelo de Paiva 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 Castelo de Paiva, you can visit Hourly UV Index in Castelo de Paiva.
UV Risk Categories
Weather in Castelo de Paiva varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Castelo de Paiva, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (45°F) | 104 mm (4.1 inches) | 87% | low |
| February Weather | 9°C (49°F) | 165 mm (6.5 inches) | 81% | moderate |
| March Weather | 10°C (51°F) | 172 mm (6.8 inches) | 78% | high |
| April Weather | 13°C (55°F) | 177 mm (6.9 inches) | 79% | very high |
| May Weather | 16°C (61°F) | 96 mm (3.8 inches) | 78% | very high |
| June Weather | 17°C (63°F) | 71 mm (2.8 inches) | 71% | extreme |
| July Weather | 20°C (68°F) | 30 mm (1.2 inches) | 63% | very high |
| August Weather | 20°C (69°F) | 23 mm (0.9 inches) | 64% | very high |
| September Weather | 19°C (66°F) | 57 mm (2.3 inches) | 71% | very high |
| October Weather | 15°C (60°F) | 127 mm (5.0 inches) | 79% | high |
| November Weather | 10°C (51°F) | 189 mm (7.4 inches) | 86% | moderate |
| December Weather | 9°C (48°F) | 231 mm (9.1 inches) | 87% | low |