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December Weather in Promissao, Brazil

Last updated: August 22, 2025

The average temperature in Promissao, Brazil during December is 26°C (79°F), with a minimum of 17°C (62°F) and a maximum reaching 37°C (98°F). Expect a total precipitation amount of 132 mm (5.2 in) over approximately 15 days, while the average humidity hovers around 80%.

December Temperature in Promissao

In December in Promissao the average temperature is 26°C (79°F). Maximum can reach 37°C (98°F) and minimum can be as low as 17°C (62°F). This makes Promissao an ideal destination for travelers seeking warm weather and comfortable conditions.

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

The chart illustrates December temperature patterns in Promissao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Promissao, December typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (98°F) and lows dropping to around 17°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec797980777271697279797879
Data source: Temperature data for Promissao 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 Promissao

In Promissao in December, the precipitation amount is 132 mm (5.2 in), occurring over a span of 15 days.

December Precipitation Trends in Promissao

The chart displays monthly precipitation patterns in Promissao, 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 Promissao, December typically receives around 132 mm (5.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec162130824440138262095133132
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Promissao

In Promissao in December humidity is 80%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket, making outdoor activities feel sticky and exhausting, potentially dampening the travel experience and necessitating frequent breaks to cool down and hydrate.

December Average Humidity in Promissao

This chart illustrates the average monthly humidity levels in Promissao, 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 Promissao is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%86%79%68%60%57%48%41%35%65%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Promissao

In Promissao in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Promissao.

Maximum UV Index Levels in Promissao for December

The chart shows the monthly maximum UV Index (UVI) for Promissao 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 Promissao typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151613118781011131416
Data source: Promissao 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 Promissao Compares to Other Months

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

This table compares monthly weather conditions in Promissao, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)162 mm (6.4 inches)85%extreme
February Weather26°C (80°F)130 mm (5.1 inches)87%extreme
March Weather26°C (80°F)82 mm (3.2 inches)86%extreme
April Weather25°C (77°F)43 mm (1.7 inches)79%extreme
May Weather22°C (72°F)40 mm (1.6 inches)68%very high
June Weather22°C (71°F)13 mm (0.5 inches)60%high
July Weather21°C (70°F)8 mm (0.3 inches)57%very high
August Weather22°C (72°F)26 mm (1.0 inches)48%very high
September Weather26°C (79°F)20 mm (0.8 inches)41%extreme
October Weather26°C (79°F)95 mm (3.7 inches)35%extreme
November Weather26°C (79°F)133 mm (5.2 inches)65%extreme
December Weather26°C (79°F)132 mm (5.2 inches)80%extreme

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