Last updated: August 27, 2025
In December, the average temperature in Monsanto, Portugal hovers around 9°C (49°F), offering a mild backdrop for your adventures. Expect a range with minimums dipping to -3°C (27°F) and maximums reaching up to 19°C (67°F). Stay prepared for 86 mm (3.4 in) of precipitation over approximately 8 days, contributing to an average humidity of 87%. Whether you're exploring the outdoors or seeking local culture, this month brings a unique blend of weather to enjoy!
In December in Monsanto, the average temperature is 9°C (49°F). Maximum temperatures can reach 19°C (67°F), while the minimum can drop as low as -3°C (27°F). This weather makes it an ideal time for travelers to enjoy a mix of mild days and cool evenings, perfect for outdoor exploration.
In Monsanto in December, the precipitation amount reaches 86 mm (3.4 in) over the course of 8 days.
In Monsanto in December humidity is 87%. With an average temperature of 9°C (49°F), this humidity feels like a damp blanket wrapping around you, making travel uncomfortable and leaving you yearning for a dry breeze to refresh your spirit.
In Monsanto 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 Monsanto, you can check the information here.
UV Risk Categories
Weather in Monsanto varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Monsanto, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 8°C (46°F) | 42 mm (1.7 inches) | 87% | moderate |
| February Weather | 10°C (51°F) | 57 mm (2.2 inches) | 76% | moderate |
| March Weather | 12°C (53°F) | 84 mm (3.3 inches) | 68% | high |
| April Weather | 14°C (58°F) | 69 mm (2.7 inches) | 64% | very high |
| May Weather | 19°C (66°F) | 31 mm (1.2 inches) | 62% | very high |
| June Weather | 22°C (73°F) | 12 mm (0.5 inches) | 47% | extreme |
| July Weather | 26°C (79°F) | 8 mm (0.3 inches) | 46% | very high |
| August Weather | 26°C (79°F) | 3 mm (0.1 inches) | 42% | very high |
| September Weather | 22°C (73°F) | 29 mm (1.1 inches) | 53% | very high |
| October Weather | 18°C (64°F) | 71 mm (2.8 inches) | 69% | high |
| November Weather | 12°C (53°F) | 84 mm (3.3 inches) | 85% | moderate |
| December Weather | 9°C (49°F) | 86 mm (3.4 inches) | 87% | moderate |