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December Weather in Formosa, Brazil

Last updated: August 22, 2025

In Formosa, Brazil, the average temperature in December hovers around 24°C (75°F). Expect a comfortable climate with minimums dipping to 17°C (64°F) and soaring maximums of 33°C (92°F). However, be prepared for some wet days, as 250 mm (9.8 in) of precipitation typically falls over 18 days. With average humidity at 54%, it’s a month that balances warmth with refreshing breezes.

December Temperature in Formosa

In December in Formosa, the average temperature is 24°C (75°F). Maximums can reach 33°C (92°F), while minimums can dip to as low as 17°C (64°F). This pleasant weather makes Formosa an ideal destination for travelers looking to enjoy comfortable conditions and outdoor activities.

December Weather in Formosa: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Formosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Formosa, December typically has an average temperature of 24°C (75°F), with highs reaching up to 33°C (92°F) and lows dropping to around 17°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec767475747270687377797575
Data source: Temperature data for Formosa 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 Formosa

In Formosa in December, the precipitation amount reaches 250 mm (9.8 in) over the course of 18 days.

December Precipitation Trends in Formosa

The chart displays monthly precipitation patterns in Formosa, 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 Formosa, December typically receives around 250 mm (9.8 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec982161757817104571174250
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Formosa

In Formosa in December humidity is 54%. With average temperature 24°C (75°F), this humidity feels like a refreshing breeze that enhances the comfort of traveling, allowing for enjoyable outdoor exploration without the discomfort often associated with higher humidity levels.

December Average Humidity in Formosa

This chart illustrates the average monthly humidity levels in Formosa, 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 Formosa is approximately 54%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%88%90%80%63%54%50%45%38%29%39%54%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Formosa

In Formosa in December, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Formosa, you can check Hourly UV Index in Formosa.

Maximum UV Index Levels in Formosa for December

The chart shows the monthly maximum UV Index (UVI) for Formosa 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 Formosa typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16161513119101214151617
Data source: Formosa 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 Formosa Compares to Other Months

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

This table compares monthly weather conditions in Formosa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)98 mm (3.8 inches)83%extreme
February Weather23°C (74°F)216 mm (8.5 inches)88%extreme
March Weather24°C (75°F)175 mm (6.9 inches)90%extreme
April Weather23°C (74°F)78 mm (3.1 inches)80%extreme
May Weather22°C (72°F)17 mm (0.7 inches)62%extreme
June Weather21°C (70°F)1 mm (0.0 inches)54%very high
July Weather20°C (69°F)0 mm (0.0 inches)50%very high
August Weather23°C (73°F)4 mm (0.1 inches)45%extreme
September Weather25°C (77°F)5 mm (0.2 inches)38%extreme
October Weather26°C (79°F)71 mm (2.8 inches)29%extreme
November Weather24°C (75°F)174 mm (6.8 inches)39%extreme
December Weather24°C (75°F)250 mm (9.8 inches)54%extreme

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