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December Weather in Santo Amaro, Brazil

Last updated: August 22, 2025

In December, the average temperature in Santo Amaro, Brazil hovers around 26°C (80°F), with minimums dipping to 20°C (68°F) and maximums soaring up to 35°C (96°F). Expect precipitation of about 73 mm (2.9 in) spread over 12 days, contributing to a relatively high average humidity of 70%. Enjoy the warm climate, but be prepared for some rainfall!

December Temperature in Santo Amaro

In December in Santo Amaro, the average temperature is 26°C (80°F). Maximums can reach 35°C (96°F), while minimums can drop to as low as 20°C (68°F). It's a great time to visit for those who enjoy warm weather and outdoor activities.

December Weather in Santo Amaro: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santo Amaro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Amaro, December typically has an average temperature of 26°C (80°F), with highs reaching up to 35°C (96°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec808180787674727374787979
Data source: Temperature data for Santo Amaro 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 Santo Amaro

In Santo Amaro in December, the precipitation amount is 73 mm (2.9 in) occurring over a span of 12 days.

December Precipitation Trends in Santo Amaro

The chart displays monthly precipitation patterns in Santo Amaro, 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 Santo Amaro, December typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4346971321461191169660448873
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santo Amaro

In Santo Amaro in December, humidity is 70%. With an average temperature of 26°C (80°F), this humidity feels like a warm, sticky blanket enveloping you, making travel feel laborious and prompting frequent breaks in shaded spots or air-conditioned spaces to stay comfortable.

December Average Humidity in Santo Amaro

This chart illustrates the average monthly humidity levels in Santo Amaro, 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 Santo Amaro is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%81%86%87%86%84%80%77%75%72%71%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santo Amaro

In Santo Amaro 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 Santo Amaro, you can check here.

Maximum UV Index Levels in Santo Amaro for December

The chart shows the monthly maximum UV Index (UVI) for Santo Amaro 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 Santo Amaro typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14141413119101212151514
Data source: Santo Amaro 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 Santo Amaro Compares to Other Months

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

This table compares monthly weather conditions in Santo Amaro, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)43 mm (1.7 inches)76%extreme
February Weather27°C (81°F)46 mm (1.8 inches)81%extreme
March Weather27°C (80°F)97 mm (3.8 inches)86%extreme
April Weather26°C (78°F)132 mm (5.2 inches)87%extreme
May Weather24°C (76°F)146 mm (5.7 inches)86%extreme
June Weather23°C (74°F)119 mm (4.7 inches)84%very high
July Weather22°C (73°F)116 mm (4.6 inches)80%very high
August Weather23°C (73°F)96 mm (3.8 inches)77%extreme
September Weather24°C (75°F)60 mm (2.3 inches)75%extreme
October Weather25°C (78°F)44 mm (1.7 inches)72%extreme
November Weather26°C (79°F)88 mm (3.5 inches)71%extreme
December Weather26°C (80°F)73 mm (2.9 inches)70%extreme

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