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December Weather in Sao Sebastiao do Cai, Brazil

Last updated: August 22, 2025

In December, the average temperature in Sao Sebastiao do Cai, Brazil is 23°C (73°F), offering a pleasant climate. Be prepared for a range of temperatures, as it can dip to a minimum of 9°C (48°F) and soar to a maximum of 37°C (98°F). Rainfall is moderate, with 114 mm (4.5 in) expected over 12 days, while humidity is notably high at 87%.

December Temperature in Sao Sebastiao do Cai

In December in Sao Sebastiao do Cai, the average temperature is 23°C (73°F), with maximums reaching up to 37°C (98°F) and minimums dipping as low as 9°C (48°F). This varied climate makes it an ideal time for travelers to experience both warm days and cooler evenings, perfect for outdoor activities and exploring the local culture.

December Weather in Sao Sebastiao do Cai: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sao Sebastiao do Cai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Sebastiao do Cai, December typically has an average temperature of 23°C (73°F), with highs reaching up to 37°C (98°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec757371676159575963666973
Data source: Temperature data for Sao Sebastiao do Cai 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 Sao Sebastiao do Cai

In Sao Sebastiao do Cai in December, the precipitation amount is 114 mm (4.5 in) spread over 12 days.

December Precipitation Trends in Sao Sebastiao do Cai

The chart displays monthly precipitation patterns in Sao Sebastiao do Cai, 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 Sao Sebastiao do Cai, December typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec16014213610017714014093193174147114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sao Sebastiao do Cai

In Sao Sebastiao do Cai in December humidity is 87%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel sticky and challenging as sweat lingers on your skin, turning every step into a small effort and making refreshing breaks a necessity.

December Average Humidity in Sao Sebastiao do Cai

This chart illustrates the average monthly humidity levels in Sao Sebastiao do Cai, 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 Sao Sebastiao do Cai is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%77%79%83%88%86%82%77%80%84%83%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sao Sebastiao do Cai

In Sao Sebastiao do Cai 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 Sao Sebastiao do Cai, you can check here.

Maximum UV Index Levels in Sao Sebastiao do Cai for December

The chart shows the monthly maximum UV Index (UVI) for Sao Sebastiao do Cai 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 Sao Sebastiao do Cai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141312965579121314
Data source: Sao Sebastiao do Cai 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 Sao Sebastiao do Cai Compares to Other Months

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

This table compares monthly weather conditions in Sao Sebastiao do Cai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)160 mm (6.3 inches)80%extreme
February Weather23°C (74°F)142 mm (5.6 inches)77%extreme
March Weather22°C (71°F)136 mm (5.4 inches)79%extreme
April Weather20°C (68°F)100 mm (3.9 inches)83%very high
May Weather16°C (61°F)177 mm (7.0 inches)88%high
June Weather15°C (59°F)140 mm (5.5 inches)86%moderate
July Weather14°C (57°F)140 mm (5.5 inches)82%moderate
August Weather15°C (60°F)93 mm (3.7 inches)77%high
September Weather17°C (64°F)193 mm (7.6 inches)80%very high
October Weather19°C (66°F)174 mm (6.9 inches)84%extreme
November Weather21°C (69°F)147 mm (5.8 inches)83%extreme
December Weather23°C (73°F)114 mm (4.5 inches)87%extreme

Compare Sao Sebastiao do Cai's Climate with Cities Worldwide