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December Weather in Belmonte, Portugal

Last updated: August 27, 2025

In December, the average temperature in Belmonte, Portugal hovers around 8°C (46°F). Expect a minimum of -3°C (27°F) and a maximum of 17°C (63°F). Be prepared for some rain, as the area receives an average precipitation of 98 mm (3.9 in) spread over 9 days, all while maintaining a high average humidity of 91%.

December Temperature in Belmonte

In December in Belmonte, the average temperature is 8°C (46°F). Maximums can reach 17°C (63°F), while minimums can dip as low as -3°C (27°F). Travelers should prepare for a range of temperatures and pack layers to stay comfortable during their visit.

December Weather in Belmonte: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Belmonte, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Belmonte, December typically has an average temperature of 8°C (46°F), with highs reaching up to 17°C (63°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec434850546267747468605046
Data source: Temperature data for Belmonte generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Belmonte

In Belmonte in December, the precipitation amount is 98 mm (3.9 in) spread over a duration of 9 days.

December Precipitation Trends in Belmonte

The chart displays monthly precipitation patterns in Belmonte, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Belmonte, December typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec45741039946241110437710798
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Belmonte

In Belmonte in December, humidity is 91%. With an average temperature of 8°C (46°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and leaving a chill that seeps into your bones, creating an atmosphere that is damp and heavy, perfect for cozy indoor explorations but challenging for leisurely travel.

December Average Humidity in Belmonte

This chart illustrates the average monthly humidity levels in Belmonte, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Belmonte is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%85%79%77%76%64%54%52%63%78%90%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Belmonte

In Belmonte 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 Belmonte, you can visit Hourly UV Index in Belmonte.

Maximum UV Index Levels in Belmonte for December

The chart shows the monthly maximum UV Index (UVI) for Belmonte in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Belmonte typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910111098642
Data source: Belmonte December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Belmonte Compares to Other Months

Weather in Belmonte varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Belmonte, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Belmonte, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)45 mm (1.8 inches)91%moderate
February Weather9°C (48°F)74 mm (2.9 inches)85%moderate
March Weather10°C (50°F)103 mm (4.1 inches)79%high
April Weather12°C (54°F)99 mm (3.9 inches)77%very high
May Weather17°C (62°F)46 mm (1.8 inches)76%very high
June Weather20°C (68°F)24 mm (0.9 inches)64%extreme
July Weather23°C (74°F)11 mm (0.4 inches)54%very high
August Weather23°C (74°F)10 mm (0.4 inches)52%very high
September Weather20°C (68°F)43 mm (1.7 inches)63%very high
October Weather15°C (60°F)77 mm (3.0 inches)78%high
November Weather10°C (50°F)107 mm (4.2 inches)90%moderate
December Weather8°C (46°F)98 mm (3.9 inches)91%low

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