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December Weather in Santo Angelo, Brazil

Last updated: August 22, 2025

In December, the average temperature in Santo Angelo, Brazil is a pleasant 25°C (77°F). However, be prepared for a temperature range where it can drop to a cool 11°C (52°F) or soar to a scorching 38°C (101°F). During this month, expect about 90 mm (3.5 in) of precipitation spread over 9 days, contributing to a high average humidity of 85%. Stay hydrated and enjoy the climate!

December Temperature in Santo Angelo

In December in Santo Angelo, the average temperature is 25°C (77°F). Maximum temperatures can reach 38°C (101°F), while minimums can drop as low as 11°C (52°F). Overall, it’s a great time to visit Santo Angelo for those who enjoy warm weather and mild evenings.

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

The chart illustrates December temperature patterns in Santo Angelo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Angelo, December typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (101°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec787674706361596267707477
Data source: Temperature data for Santo Angelo 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 Angelo

In Santo Angelo in December, the precipitation amount is 90 mm (3.5 in) over the course of 9 days.

December Precipitation Trends in Santo Angelo

The chart displays monthly precipitation patterns in Santo Angelo, 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 Angelo, December typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec1591151401352161401119010818815290
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santo Angelo

In Santo Angelo in December, humidity is 85%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making every outdoor excursion feel both stifling and sticky, requiring frequent breaks in the shade to stay comfortable while exploring.

December Average Humidity in Santo Angelo

This chart illustrates the average monthly humidity levels in Santo Angelo, 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 Angelo is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%73%73%81%87%84%80%71%74%78%77%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santo Angelo

In Santo Angelo 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 Angelo, you can check here.

Maximum UV Index Levels in Santo Angelo for December

The chart shows the monthly maximum UV Index (UVI) for Santo Angelo 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 Angelo typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141210655710131414
Data source: Santo Angelo 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 Angelo Compares to Other Months

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

This table compares monthly weather conditions in Santo Angelo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)159 mm (6.2 inches)74%extreme
February Weather24°C (76°F)115 mm (4.5 inches)73%extreme
March Weather23°C (74°F)140 mm (5.5 inches)73%extreme
April Weather21°C (70°F)135 mm (5.3 inches)81%very high
May Weather17°C (63°F)216 mm (8.5 inches)87%high
June Weather16°C (61°F)140 mm (5.5 inches)84%moderate
July Weather15°C (59°F)111 mm (4.4 inches)80%moderate
August Weather17°C (62°F)90 mm (3.6 inches)71%high
September Weather20°C (67°F)108 mm (4.2 inches)74%very high
October Weather21°C (71°F)188 mm (7.4 inches)77%extreme
November Weather23°C (74°F)152 mm (6.0 inches)77%extreme
December Weather25°C (77°F)90 mm (3.5 inches)85%extreme

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