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December Weather in Mafra, Brazil

Last updated: August 22, 2025

In Mafra, Brazil, the average temperature in December hovers around 21°C (70°F), making it a pleasant time to visit. However, temperatures can swing from a cool 11°C (52°F) to a warm 34°C (93°F). Expect some rain, with an average precipitation amount of 137 mm (5.4 in) over 17 days. Don't forget to pack for the humidity as well, which averages a comfortable 88%!

December Temperature in Mafra

In December in Mafra, the average temperature is 21°C (70°F). The maximum can reach 34°C (93°F), while the minimum can drop as low as 11°C (52°F). This makes Mafra an ideal destination for travelers looking to enjoy warm days and cooler evenings.

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

The chart illustrates December temperature patterns in Mafra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mafra, December typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (93°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec727170656159575965656770
Data source: Temperature data for Mafra 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 Mafra

In Mafra in December, the total precipitation amount is 137 mm (5.4 in), occurring over a span of 17 days.

December Precipitation Trends in Mafra

The chart displays monthly precipitation patterns in Mafra, 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 Mafra, December typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec1501241094787118277969147103137
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mafra

In Mafra in December, humidity is 88%. With an average temperature of 21°C (70°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and slightly stifling, which can be quite challenging for travelers.

December Average Humidity in Mafra

This chart illustrates the average monthly humidity levels in Mafra, 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 Mafra is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%83%85%85%86%85%80%79%82%82%86%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mafra

In Mafra in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Mafra.

Maximum UV Index Levels in Mafra for December

The chart shows the monthly maximum UV Index (UVI) for Mafra 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 Mafra typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151311866911131515
Data source: Mafra 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 Mafra Compares to Other Months

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

This table compares monthly weather conditions in Mafra, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)150 mm (5.9 inches)86%extreme
February Weather21°C (71°F)124 mm (4.9 inches)83%extreme
March Weather21°C (70°F)109 mm (4.3 inches)85%extreme
April Weather18°C (65°F)47 mm (1.9 inches)85%extreme
May Weather16°C (61°F)87 mm (3.4 inches)86%very high
June Weather15°C (59°F)118 mm (4.6 inches)85%high
July Weather14°C (57°F)27 mm (1.0 inches)80%high
August Weather15°C (59°F)79 mm (3.1 inches)79%very high
September Weather18°C (65°F)69 mm (2.7 inches)82%extreme
October Weather18°C (65°F)147 mm (5.8 inches)82%extreme
November Weather19°C (67°F)103 mm (4.1 inches)86%extreme
December Weather21°C (70°F)137 mm (5.4 inches)88%extreme

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