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December Weather in Passo Fundo, Brazil

Last updated: August 22, 2025

In December, the average temperature in Passo Fundo, Brazil is a pleasant 22°C (73°F). However, temperatures can vary significantly, with a minimum of 9°C (49°F) and a maximum of 34°C (94°F). Be prepared for some rain, as the region experiences 120 mm (4.7 in) of precipitation spread over 12 days. With an average humidity of 85%, the air can feel quite humid, making it essential to stay hydrated and comfortable during your visit!

December Temperature in Passo Fundo

In December in Passo Fundo, the average temperature is 22°C (73°F). Maximums can reach 34°C (94°F) and minimums can be as low as 9°C (49°F). This makes Passo Fundo an ideal destination for travelers seeking a mild climate perfect for outdoor activities and exploration.

December Weather in Passo Fundo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Passo Fundo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Passo Fundo, December typically has an average temperature of 22°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec747270666058565964676972
Data source: Temperature data for Passo Fundo 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 Passo Fundo

In Passo Fundo in December, the precipitation amount is 120 mm (4.7 in) over a period of 12 days.

December Precipitation Trends in Passo Fundo

The chart displays monthly precipitation patterns in Passo Fundo, 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 Passo Fundo, December typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec15216111810819613612682134170150120
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Passo Fundo

In Passo Fundo in December, humidity is 85%. With an average temperature of 22°C (73°F), this humidity feels like an enveloping blanket of warmth, making it essential to stay hydrated while traveling and seek out shaded areas to refresh and cool down.

December Average Humidity in Passo Fundo

This chart illustrates the average monthly humidity levels in Passo Fundo, 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 Passo Fundo is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%73%73%81%87%84%80%71%74%78%77%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Passo Fundo

In Passo Fundo in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Passo Fundo.

Maximum UV Index Levels in Passo Fundo for December

The chart shows the monthly maximum UV Index (UVI) for Passo Fundo 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 Passo Fundo typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141310655710131415
Data source: Passo Fundo 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 Passo Fundo Compares to Other Months

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

This table compares monthly weather conditions in Passo Fundo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)152 mm (6.0 inches)74%extreme
February Weather22°C (72°F)161 mm (6.3 inches)73%extreme
March Weather21°C (71°F)118 mm (4.6 inches)73%extreme
April Weather19°C (66°F)108 mm (4.2 inches)81%very high
May Weather16°C (60°F)196 mm (7.7 inches)87%high
June Weather14°C (58°F)136 mm (5.3 inches)84%moderate
July Weather14°C (57°F)126 mm (5.0 inches)80%moderate
August Weather15°C (59°F)82 mm (3.2 inches)71%high
September Weather18°C (65°F)134 mm (5.3 inches)74%very high
October Weather19°C (67°F)170 mm (6.7 inches)77%extreme
November Weather21°C (70°F)150 mm (5.9 inches)77%extreme
December Weather22°C (73°F)120 mm (4.7 inches)85%extreme

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