nomadseason

December Weather in Rosario Oeste, Brazil

Last updated: August 22, 2025

In December, the average temperature in Rosario Oeste, Brazil typically hovers around 27°C (80°F). However, you may experience a range, with minimums dipping to 21°C (70°F) and soaring up to 36°C (98°F). Be prepared for some rain, as the area receives an average of 194 mm (7.6 in) of precipitation over 22 days. With an average humidity level of 84%, it's a moist month to enjoy!

December Temperature in Rosario Oeste

In December in Rosario Oeste, the average temperature is 27°C (80°F), with maximums reaching 36°C (98°F) and minimums dropping to as low as 21°C (70°F). It's an ideal time for travelers to enjoy warm weather while exploring the attractions, but don't forget to stay hydrated and protect yourself from the sun.

December Weather in Rosario Oeste: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rosario Oeste, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosario Oeste, December typically has an average temperature of 27°C (80°F), with highs reaching up to 36°C (98°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec807980797775747984838180
Data source: Temperature data for Rosario Oeste generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Rosario Oeste

In Rosario Oeste in December, the total precipitation amount is 194 mm (7.6 in) spread over 22 days.

December Precipitation Trends in Rosario Oeste

The chart displays monthly precipitation patterns in Rosario Oeste, 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 Rosario Oeste, December typically receives around 194 mm (7.6 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec15024919591272082691172194
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Rosario Oeste

In Rosario Oeste in December, humidity is 84%. With an average temperature of 27°C (80°F), this humidity feels like a thick, warm blanket enveloping you, making travel feel sluggish and exhausting.

December Average Humidity in Rosario Oeste

This chart illustrates the average monthly humidity levels in Rosario Oeste, 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 Rosario Oeste is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%89%87%78%63%50%39%30%29%63%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rosario Oeste

In Rosario Oeste 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 Rosario Oeste.

Maximum UV Index Levels in Rosario Oeste for December

The chart shows the monthly maximum UV Index (UVI) for Rosario Oeste 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 Rosario Oeste typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1616151310991112141516
Data source: Rosario Oeste 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 Rosario Oeste Compares to Other Months

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

This table compares monthly weather conditions in Rosario Oeste, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)150 mm (5.9 inches)88%extreme
February Weather26°C (80°F)249 mm (9.8 inches)88%extreme
March Weather27°C (80°F)195 mm (7.7 inches)89%extreme
April Weather26°C (80°F)91 mm (3.6 inches)87%extreme
May Weather25°C (77°F)27 mm (1.0 inches)78%very high
June Weather24°C (76°F)2 mm (0.1 inches)63%very high
July Weather24°C (75°F)0 mm (0.0 inches)50%very high
August Weather26°C (79°F)8 mm (0.3 inches)39%extreme
September Weather29°C (84°F)25 mm (1.0 inches)30%extreme
October Weather28°C (83°F)91 mm (3.6 inches)29%extreme
November Weather27°C (81°F)172 mm (6.8 inches)62%extreme
December Weather27°C (80°F)194 mm (7.6 inches)84%extreme

Compare Rosario Oeste's Climate with Cities Worldwide