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December Weather in Alegre, Brazil

Last updated: August 22, 2025

In Alegre, Brazil, the average temperature in December hovers around 23°C (74°F), making it a pleasant time to visit. However, temperatures can dip to a minimum of 13°C (56°F) and soar to a maximum of 33°C (91°F). Expect some wet days, as precipitation averages 230 mm (9.0 in) spread over 20 days, and the air remains comfortably humid with an average humidity of 72%.

December Temperature in Alegre

In December in Alegre, the average temperature is 23°C (74°F). Maximum temperatures can reach 33°C (91°F) and minimums can drop as low as 13°C (56°F). This makes Alegre an ideal destination for travelers seeking mild weather with pleasant daytime warmth and cooler evenings.

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

The chart illustrates December temperature patterns in Alegre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alegre, December typically has an average temperature of 23°C (74°F), with highs reaching up to 33°C (91°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec777575716867646570727174
Data source: Temperature data for Alegre 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 Alegre

In Alegre in December, the total precipitation amount is 230 mm (9.0 in) recorded over a span of 20 days.

December Precipitation Trends in Alegre

The chart displays monthly precipitation patterns in Alegre, 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 Alegre, December typically receives around 230 mm (9.0 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec1082291771025831193860136197230
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alegre

In Alegre in December humidity is 72%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities a challenge but offering a refreshing atmosphere for leisurely strolls in the shade.

December Average Humidity in Alegre

This chart illustrates the average monthly humidity levels in Alegre, 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 Alegre is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%85%86%85%82%81%79%75%72%67%69%72%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alegre

In Alegre 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 Alegre.

Maximum UV Index Levels in Alegre for December

The chart shows the monthly maximum UV Index (UVI) for Alegre 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 Alegre typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161514129781012141515
Data source: Alegre 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 Alegre Compares to Other Months

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

This table compares monthly weather conditions in Alegre, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)108 mm (4.3 inches)80%extreme
February Weather24°C (75°F)229 mm (9.0 inches)85%extreme
March Weather24°C (75°F)177 mm (7.0 inches)86%extreme
April Weather22°C (72°F)102 mm (4.0 inches)85%extreme
May Weather20°C (68°F)58 mm (2.3 inches)82%very high
June Weather19°C (67°F)31 mm (1.2 inches)81%high
July Weather18°C (65°F)19 mm (0.8 inches)79%very high
August Weather18°C (66°F)38 mm (1.5 inches)75%very high
September Weather21°C (71°F)60 mm (2.3 inches)72%extreme
October Weather22°C (72°F)136 mm (5.4 inches)66%extreme
November Weather22°C (71°F)197 mm (7.8 inches)69%extreme
December Weather23°C (74°F)230 mm (9.0 inches)72%extreme

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