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December Weather in Penela, Portugal

Last updated: August 27, 2025

In December, the average temperature in Penela, Portugal hovers around 11°C (51°F). Expect a chill, as lows can dip to -1°C (30°F), while highs reach a comfortable 19°C (66°F). Be prepared for some wet days, with an average precipitation of 115 mm (4.5 in) spread over 12 days. Additionally, the air is quite humid, with an average humidity of 85%, making the atmosphere feel even more crisp.

December Temperature in Penela

In December in Penela, the average temperature is 11°C (51°F). Maximum temperatures can reach 19°C (66°F), while minimums can drop to as low as -1°C (30°F). It’s advisable to pack layers to stay comfortable during your travels.

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

The chart illustrates December temperature patterns in Penela, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Penela, December typically has an average temperature of 11°C (51°F), with highs reaching up to 19°C (66°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec485254576365696968625451
Data source: Temperature data for Penela 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 Penela

In Penela in December, the total precipitation amount is 115 mm (4.5 in) over a span of 12 days.

December Precipitation Trends in Penela

The chart displays monthly precipitation patterns in Penela, 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 Penela, December typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec6388121123653310104098127115
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Penela

In Penela in December humidity is 85%. With an average temperature of 11°C (51°F), this humidity feels like a chilly embrace that seeps into your bones, making outdoor activities a bit uncomfortable and encouraging a more relaxed, slow-paced exploration of the area.

December Average Humidity in Penela

This chart illustrates the average monthly humidity levels in Penela, 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 Penela is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Penela

In Penela 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 Penela, you can check the information here.

Maximum UV Index Levels in Penela for December

The chart shows the monthly maximum UV Index (UVI) for Penela 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 Penela typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689111098643
Data source: Penela 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 Penela Compares to Other Months

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

This table compares monthly weather conditions in Penela, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)63 mm (2.5 inches)85%moderate
February Weather11°C (52°F)88 mm (3.5 inches)75%moderate
March Weather12°C (54°F)121 mm (4.8 inches)72%high
April Weather14°C (57°F)123 mm (4.8 inches)70%very high
May Weather17°C (63°F)65 mm (2.6 inches)70%very high
June Weather18°C (65°F)33 mm (1.3 inches)63%extreme
July Weather20°C (69°F)10 mm (0.4 inches)60%very high
August Weather21°C (70°F)10 mm (0.4 inches)60%very high
September Weather20°C (68°F)40 mm (1.6 inches)67%very high
October Weather17°C (62°F)98 mm (3.9 inches)74%high
November Weather12°C (54°F)127 mm (5.0 inches)83%moderate
December Weather11°C (51°F)115 mm (4.5 inches)85%moderate

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