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December Weather in Umarizal, Brazil

Last updated: August 22, 2025

In Umarizal, Brazil, the average temperature in December hovers around 30°C (85°F), creating a warm and inviting atmosphere. Temperatures can dip to a pleasant 22°C (72°F) but can soar as high as 37°C (100°F). Expect a modest precipitation of 21 mm (0.8 in) over 3 days, and enjoy the comfortable average humidity level of 59%.

December Temperature in Umarizal

In December in Umarizal, the average temperature is 30°C (85°F). Maximums can reach 37°C (100°F) and minimums can be as low as 22°C (72°F). This makes it an ideal time for travelers seeking warm weather and outdoor activities.

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

The chart illustrates December temperature patterns in Umarizal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Umarizal, December typically has an average temperature of 30°C (85°F), with highs reaching up to 37°C (100°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec848281818181808283858685
Data source: Temperature data for Umarizal 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 Umarizal

In Umarizal in December, the precipitation amount is 21 mm (0.8 in) over a period of 3 days.

December Precipitation Trends in Umarizal

The chart displays monthly precipitation patterns in Umarizal, 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 Umarizal, December typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec44157155121431038101121
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Umarizal

In Umarizal in December humidity is 59%. With an average temperature of 30°C (85°F), this humidity feels like a warm, enveloping blanket, making travel feel sticky and sultry, particularly during midday adventures, which can soon lead to a need for frequent breaks in the shade.

December Average Humidity in Umarizal

This chart illustrates the average monthly humidity levels in Umarizal, 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 Umarizal is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%91%92%92%89%80%70%65%59%53%49%59%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Umarizal

In Umarizal 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 Umarizal, you can check here.

Maximum UV Index Levels in Umarizal for December

The chart shows the monthly maximum UV Index (UVI) for Umarizal 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 Umarizal typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141211111213131414
Data source: Umarizal 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 Umarizal Compares to Other Months

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

This table compares monthly weather conditions in Umarizal, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather29°C (84°F)44 mm (1.7 inches)88%extreme
February Weather28°C (82°F)157 mm (6.2 inches)91%extreme
March Weather27°C (81°F)155 mm (6.1 inches)92%extreme
April Weather27°C (81°F)121 mm (4.8 inches)92%extreme
May Weather27°C (81°F)43 mm (1.7 inches)89%extreme
June Weather27°C (81°F)9 mm (0.4 inches)80%extreme
July Weather27°C (81°F)38 mm (1.5 inches)70%extreme
August Weather28°C (82°F)1 mm (0.0 inches)65%extreme
September Weather29°C (84°F)0 mm (0.0 inches)59%extreme
October Weather29°C (85°F)1 mm (0.0 inches)53%extreme
November Weather30°C (86°F)1 mm (0.0 inches)49%extreme
December Weather30°C (85°F)21 mm (0.8 inches)59%extreme

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