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December Weather in Santo Anastacio, Brazil

Last updated: August 22, 2025

In December, the average temperature in Santo Anastacio, Brazil reaches a pleasant 27°C (80°F). However, be prepared for a range as the minimum can dip to 17°C (63°F) while the maximum can soar up to 38°C (100°F). Expect a precipitation amount of 156 mm (6.2 in) spread over about 16 days this month, with humidity levels averaging around a cozy 82%.

December Temperature in Santo Anastacio

In December in Santo Anastacio, the average temperature is 27°C (80°F). Maximums can reach 38°C (100°F), while minimums can be as low as 17°C (63°F). This warm climate makes Santo Anastacio an ideal destination for travelers seeking sun and pleasant weather.

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

The chart illustrates December temperature patterns in Santo Anastacio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Anastacio, December typically has an average temperature of 27°C (80°F), with highs reaching up to 38°C (100°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec808080777271717381798080
Data source: Temperature data for Santo Anastacio 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 Anastacio

In Santo Anastacio in December, the precipitation amount is 156 mm (6.2 in) over the course of 16 days.

December Precipitation Trends in Santo Anastacio

The chart displays monthly precipitation patterns in Santo Anastacio, 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 Anastacio, December typically receives around 156 mm (6.2 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec138139865549316372812298156
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santo Anastacio

In Santo Anastacio in December, humidity is 82%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel sticky and heavy, often leaving travelers longing for shade and a refreshing drink.

December Average Humidity in Santo Anastacio

This chart illustrates the average monthly humidity levels in Santo Anastacio, 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 Anastacio is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%85%76%60%48%44%38%33%31%62%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santo Anastacio

In Santo Anastacio 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 Santo Anastacio.

Maximum UV Index Levels in Santo Anastacio for December

The chart shows the monthly maximum UV Index (UVI) for Santo Anastacio 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 Anastacio typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151513118781011141416
Data source: Santo Anastacio 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 Anastacio Compares to Other Months

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

This table compares monthly weather conditions in Santo Anastacio, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)138 mm (5.4 inches)84%extreme
February Weather27°C (80°F)139 mm (5.5 inches)85%extreme
March Weather27°C (80°F)86 mm (3.4 inches)84%extreme
April Weather25°C (77°F)55 mm (2.1 inches)76%extreme
May Weather22°C (73°F)49 mm (1.9 inches)60%very high
June Weather22°C (72°F)30 mm (1.2 inches)48%high
July Weather21°C (71°F)6 mm (0.2 inches)44%very high
August Weather23°C (73°F)37 mm (1.4 inches)38%very high
September Weather27°C (81°F)28 mm (1.1 inches)33%extreme
October Weather26°C (80°F)122 mm (4.8 inches)31%extreme
November Weather27°C (80°F)98 mm (3.9 inches)62%extreme
December Weather27°C (80°F)156 mm (6.2 inches)82%extreme

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