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December Weather in Marco, Brazil

Last updated: August 22, 2025

In December, the average temperature in Marco, Brazil reaches a warm 28°C (83°F). Expect a comfortable minimum of 23°C (74°F) and a peak of 35°C (96°F). With 42 mm (1.7 in) of rainfall spread over 10 days, you might want to carry an umbrella. Stay refreshed with an average humidity level of 74%.

December Temperature in Marco

In December in Marco, the average temperature is 28°C (83°F). Maximum temperatures can reach 35°C (96°F), while the minimum can dip down to 23°C (74°F). This pleasant climate makes it an ideal time for outdoor activities and exploration.

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

The chart illustrates December temperature patterns in Marco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marco, December typically has an average temperature of 28°C (83°F), with highs reaching up to 35°C (96°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec828180808081828283838383
Data source: Temperature data for Marco 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 Marco

In Marco in December, the precipitation amount is 42 mm (1.7 in) over the course of 10 days.

December Precipitation Trends in Marco

The chart displays monthly precipitation patterns in Marco, 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 Marco, December typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9023725031412528133391542
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Marco

In Marco in December, humidity is 74%. With an average temperature of 28°C (83°F), this humidity feels like a heavy blanket enveloping you, making travel feel more tiring as every step is met with a warm, sticky embrace that can drain your energy quickly.

December Average Humidity in Marco

This chart illustrates the average monthly humidity levels in Marco, 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 Marco is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%88%89%91%88%77%63%54%55%58%62%74%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Marco

In Marco in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Marco.

Maximum UV Index Levels in Marco for December

The chart shows the monthly maximum UV Index (UVI) for Marco 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 Marco typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141416151311111213131313
Data source: Marco 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 Marco Compares to Other Months

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

This table compares monthly weather conditions in Marco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)90 mm (3.5 inches)87%extreme
February Weather27°C (81°F)237 mm (9.3 inches)88%extreme
March Weather27°C (80°F)250 mm (9.8 inches)89%extreme
April Weather27°C (80°F)314 mm (12.4 inches)90%extreme
May Weather27°C (81°F)125 mm (4.9 inches)87%extreme
June Weather27°C (82°F)27 mm (1.1 inches)77%extreme
July Weather28°C (82°F)13 mm (0.5 inches)62%extreme
August Weather28°C (82°F)3 mm (0.1 inches)54%extreme
September Weather28°C (83°F)3 mm (0.1 inches)55%extreme
October Weather28°C (83°F)9 mm (0.3 inches)58%extreme
November Weather29°C (84°F)15 mm (0.6 inches)62%extreme
December Weather28°C (83°F)42 mm (1.7 inches)74%extreme

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