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December Weather in Castro Alves, Brazil

Last updated: August 22, 2025

In Castro Alves, Brazil, the average temperature in December is a warm 26°C (78°F). Expect a minimum of 19°C (66°F) and a maximum of 36°C (97°F), making it ideal for summer activities. Over the month, anticipate 77 mm (3.0 in) of precipitation spread across 13 days, with an average humidity of 70%. Enjoy the balmy weather!

December Temperature in Castro Alves

In December in Castro Alves, the average temperature is 26°C (78°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 19°C (66°F). It's a great time for travelers to enjoy warm weather while still having comfortable evenings.

December Weather in Castro Alves: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Castro Alves, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castro Alves, December typically has an average temperature of 26°C (78°F), with highs reaching up to 36°C (97°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec798079787573727274777778
Data source: Temperature data for Castro Alves 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 Castro Alves

In Castro Alves in December, the precipitation amount is 77 mm (3.0 in) spread over a total of 13 days.

December Precipitation Trends in Castro Alves

The chart displays monthly precipitation patterns in Castro Alves, 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 Castro Alves, December typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec364667704643444140326777
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Castro Alves

In Castro Alves in December humidity is 70%. With an average temperature of 26°C (78°F), this humidity feels like a warm embrace, making outdoor activities slightly sticky and encouraging travelers to stay hydrated while exploring.

December Average Humidity in Castro Alves

This chart illustrates the average monthly humidity levels in Castro Alves, 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 Castro Alves 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 Castro Alves

In Castro Alves 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 Castro Alves, you can check here.

Maximum UV Index Levels in Castro Alves for December

The chart shows the monthly maximum UV Index (UVI) for Castro Alves 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 Castro Alves typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141413119101213151514
Data source: Castro Alves 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 Castro Alves Compares to Other Months

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

This table compares monthly weather conditions in Castro Alves, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)36 mm (1.4 inches)76%extreme
February Weather27°C (80°F)46 mm (1.8 inches)81%extreme
March Weather26°C (79°F)67 mm (2.7 inches)86%extreme
April Weather25°C (78°F)69 mm (2.7 inches)87%extreme
May Weather24°C (76°F)46 mm (1.8 inches)86%extreme
June Weather23°C (74°F)43 mm (1.7 inches)84%very high
July Weather22°C (72°F)44 mm (1.7 inches)80%very high
August Weather22°C (72°F)40 mm (1.6 inches)77%extreme
September Weather23°C (74°F)40 mm (1.6 inches)75%extreme
October Weather25°C (77°F)32 mm (1.3 inches)72%extreme
November Weather25°C (78°F)67 mm (2.6 inches)71%extreme
December Weather26°C (78°F)77 mm (3.0 inches)70%extreme

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