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December Weather in Sao Joao da Boa Vista, Brazil

Last updated: August 22, 2025

In December, the average temperature in Sao Joao da Boa Vista, Brazil is a pleasant 23°C (74°F), with temperatures ranging from a cool 12°C (54°F) to a warm 33°C (92°F). Expect 192 mm (7.6 in) of precipitation over 20 days, contributing to an average humidity of 80%. Enjoy the balance of warmth and occasional showers in this vibrant locale!

December Temperature in Sao Joao da Boa Vista

In December in Sao Joao da Boa Vista, the average temperature is 23°C (74°F). Maximum can reach 33°C (92°F) and minimum can be as low as 12°C (54°F). It's a great time to visit Sao Joao da Boa Vista for pleasant weather and outdoor activities.

December Weather in Sao Joao da Boa Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sao Joao da Boa Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Joao da Boa Vista, December typically has an average temperature of 23°C (74°F), with highs reaching up to 33°C (92°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec747373706564636673737273
Data source: Temperature data for Sao Joao da Boa Vista 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 Joao da Boa Vista

In Sao Joao da Boa Vista in December, the total precipitation amount is 192 mm (7.6 in) over a span of 20 days.

December Precipitation Trends in Sao Joao da Boa Vista

The chart displays monthly precipitation patterns in Sao Joao da Boa Vista, 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 Joao da Boa Vista, December typically receives around 192 mm (7.6 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec214186146604617103139130159192
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sao Joao da Boa Vista

In Sao Joao da Boa Vista in December humidity is 80%. With an average temperature of 23°C (74°F), this humidity feels like walking through a warm, damp blanket, making travel feel sticky and muggy, where every step leaves you yearning for a cool breeze.

December Average Humidity in Sao Joao da Boa Vista

This chart illustrates the average monthly humidity levels in Sao Joao da Boa Vista, 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 Joao da Boa Vista is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%84%79%77%72%65%58%50%75%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sao Joao da Boa Vista

In Sao Joao da Boa Vista 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 Sao Joao da Boa Vista.

Maximum UV Index Levels in Sao Joao da Boa Vista for December

The chart shows the monthly maximum UV Index (UVI) for Sao Joao da Boa Vista 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 Joao da Boa Vista typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161613118781012141516
Data source: Sao Joao da Boa Vista 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 Joao da Boa Vista Compares to Other Months

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

This table compares monthly weather conditions in Sao Joao da Boa Vista, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)214 mm (8.4 inches)88%extreme
February Weather23°C (74°F)186 mm (7.3 inches)88%extreme
March Weather23°C (74°F)146 mm (5.7 inches)87%extreme
April Weather21°C (70°F)59 mm (2.3 inches)84%extreme
May Weather18°C (65°F)46 mm (1.8 inches)79%very high
June Weather18°C (65°F)17 mm (0.7 inches)77%high
July Weather17°C (63°F)10 mm (0.4 inches)72%very high
August Weather19°C (66°F)31 mm (1.2 inches)65%very high
September Weather23°C (73°F)39 mm (1.5 inches)58%extreme
October Weather23°C (74°F)130 mm (5.1 inches)50%extreme
November Weather22°C (73°F)159 mm (6.3 inches)75%extreme
December Weather23°C (74°F)192 mm (7.6 inches)80%extreme

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