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December Weather in Imperatriz, Brazil

Last updated: August 22, 2025

In Imperatriz, Brazil, the average temperature in December hovers around 27°C (81°F), with the thermometer dipping to a comfortable 22°C (72°F) at night and peaking at a sizzling 37°C (98°F) during the day. Expect some rain, as 136 mm (5.3 in) of precipitation can be anticipated over 21 days, contributing to an average humidity of 81%.

December Temperature in Imperatriz

In December in Imperatriz, the average temperature is 27°C (81°F), with maximums reaching up to 37°C (98°F) and minimums dropping as low as 22°C (72°F). This warm climate makes Imperatriz an ideal destination for travelers seeking sunshine and outdoor activities.

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

The chart illustrates December temperature patterns in Imperatriz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Imperatriz, December typically has an average temperature of 27°C (81°F), with highs reaching up to 37°C (98°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec808080808181818384848281
Data source: Temperature data for Imperatriz 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 Imperatriz

In Imperatriz in December, the precipitation amount is 136 mm (5.3 in) over the course of 21 days.

December Precipitation Trends in Imperatriz

The chart displays monthly precipitation patterns in Imperatriz, 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 Imperatriz, December typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec16622720314852552927121136
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Imperatriz

In Imperatriz in December humidity is 81%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy blanket enveloping you, making travel quite uncomfortable as it can quickly drain your energy and require frequent hydration breaks.

December Average Humidity in Imperatriz

This chart illustrates the average monthly humidity levels in Imperatriz, 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 Imperatriz is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%88%87%93%89%78%64%51%45%48%52%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Imperatriz

In Imperatriz in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Imperatriz, you can check here.

Maximum UV Index Levels in Imperatriz for December

The chart shows the monthly maximum UV Index (UVI) for Imperatriz 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 Imperatriz typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151515151311111213131414
Data source: Imperatriz 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 Imperatriz Compares to Other Months

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

This table compares monthly weather conditions in Imperatriz, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)165 mm (6.5 inches)91%extreme
February Weather26°C (80°F)227 mm (8.9 inches)88%extreme
March Weather26°C (80°F)202 mm (8.0 inches)87%extreme
April Weather27°C (81°F)148 mm (5.8 inches)93%extreme
May Weather27°C (81°F)52 mm (2.1 inches)89%extreme
June Weather27°C (81°F)5 mm (0.2 inches)78%extreme
July Weather27°C (81°F)5 mm (0.2 inches)64%extreme
August Weather28°C (83°F)2 mm (0.1 inches)51%extreme
September Weather29°C (85°F)9 mm (0.3 inches)45%extreme
October Weather29°C (84°F)27 mm (1.1 inches)48%extreme
November Weather28°C (82°F)121 mm (4.8 inches)52%extreme
December Weather27°C (81°F)136 mm (5.3 inches)81%extreme

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