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December Weather in Fontanelas, Portugal

Last updated: August 27, 2025

In December, the average temperature in Fontanelas, Portugal is a mild 14°C (58°F), with temperatures ranging from a comfortable 9°C (49°F) to a pleasant 17°C (63°F). Expect about 73 mm (2.9 in) of precipitation spread over 10 days, contributing to an average humidity level of 85%. Enjoy this refreshing climate!

December Temperature in Fontanelas

In December in Fontanelas, the average temperature is 14°C (58°F). Maximums can reach 17°C (63°F), while minimums can be as low as 9°C (49°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates December temperature patterns in Fontanelas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fontanelas, December typically has an average temperature of 14°C (58°F), with highs reaching up to 17°C (63°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec555657586163646465646058
Data source: Temperature data for Fontanelas 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 Fontanelas

In Fontanelas in December, the precipitation amount is 73 mm (2.9 in) over the course of 10 days.

December Precipitation Trends in Fontanelas

The chart displays monthly precipitation patterns in Fontanelas, 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 Fontanelas, December typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4259647133123432538973
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Fontanelas

In Fontanelas in December, humidity is 85%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket wrapping around you, making even short walks feel heavy and exhausting for traveling.

December Average Humidity in Fontanelas

This chart illustrates the average monthly humidity levels in Fontanelas, 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 Fontanelas 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 Fontanelas

In Fontanelas 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 Fontanelas, you can check the information here.

Maximum UV Index Levels in Fontanelas for December

The chart shows the monthly maximum UV Index (UVI) for Fontanelas 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 Fontanelas typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Fontanelas 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 Fontanelas Compares to Other Months

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

This table compares monthly weather conditions in Fontanelas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)42 mm (1.7 inches)85%moderate
February Weather13°C (56°F)59 mm (2.3 inches)75%moderate
March Weather14°C (57°F)64 mm (2.5 inches)72%high
April Weather14°C (58°F)71 mm (2.8 inches)70%very high
May Weather16°C (61°F)33 mm (1.3 inches)70%very high
June Weather17°C (63°F)12 mm (0.5 inches)63%extreme
July Weather18°C (64°F)3 mm (0.1 inches)60%very high
August Weather18°C (65°F)4 mm (0.1 inches)60%very high
September Weather18°C (65°F)32 mm (1.2 inches)67%very high
October Weather18°C (64°F)53 mm (2.1 inches)74%high
November Weather16°C (60°F)89 mm (3.5 inches)83%moderate
December Weather14°C (58°F)73 mm (2.9 inches)85%moderate

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